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How to return multiple values from a function in oracle pl/sql ? (without using out parameter)
 
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This video demonstrates how a function can return multiple values to the calling environment, but without using multiple out parameters, the video shows an example on how we can create a object, a nested table based on the object and then returning the nested table type from the function.
Views: 17761 Kishan Mashru
Oracle sql Interview Question : How to change rows to column
 
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This video tutorial talks about the frequently asked oracle sql interview question of changing rows to the column. Based on the given scenario, we are asked to change the presentation of data in a table with 3 rows and 2 column to 3 columns and 2 rows. Decode Function in oracle https://youtu.be/YUAjPMjqMws Pivot and unpivot in oracle https://youtu.be/6s0DI1YcWIM
Views: 13330 Kishan Mashru
SelectTec | Aula Nº 5 | Select Table - Oracle SQL Developer
 
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select syntax: select * from tabela;
Views: 5789 SelectTec
Oracle Database11g tutorials 13 || SQL substr function / SQL substring function
 
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link of SQL substr blog : http://www.rebellionrider.com/SQL-substr-function.htm SQL substr function SQL Substr function will return a sub string of a specified length from the source string beginning at a given position. Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ---------------------------------------------------------------------------- As the name suggests SQL Substr function will return substring from a given source string. Let's see the Syntax Substr (source_string, start_pos, Substr_length) As we can see SQL substr function takes 3 parameters. First one is Source string from which you want to extract the segment. Second parameter is Starting position for sub string from the Source string. And the third parameter is Substr_length which is the length for the substring. First two parameters are mandatory to specify while third one is optional. So we can say. SQL Substr function will return a sub string of a specified length from the source string beginning at a given position. First parameter source string can be of any data type CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB whereas both start_pos, Substr_length parameters must be number data type. The returning result of SQL Substr function is of same data type of source string. Let's see an example of SQL Substr function. SELECT substr('www.RebellionRider.com',5,14) FROM dual; Here in this query url of my website www.RebellionRider.com is our source string with the total length of 22 characters, Now, I want to extract the name of my website that is, RebellionRider. So if you count the total length of the name of the website, it is 14. That's why I have specified 14 as my third parameter of SQL Substr function which is substr_length. Also the name of the website RebellionRider is starting from 5th position therefore I have specified 5 at second parameter of SQL substr function which is strt_pos or starting position. Execute it. Here is our result RebellionRider When starting position is larger than the length of source string. In this case SQL Substr function will return NULL as a result. Let's do an example. SELECT substr('www.RebellionRider.com',23,14) FROM dual; As you can see here I have specified 23 at starting position and the total length of our source string is 22 characters Let's execute And the result is Null. Second scenario When the Substr_length is greater than source string In this case the segment return is the substring from starting position to the end of the string. For example SELECT substr('www.RebellionRider.com',5,23) FROM dual; Our starting position is at 5 means at the first R of RebellionRider and length of substring is set to 23 which is greater than the length of source string that is 22. Execute. As you can see we get a substring from first R of RebellionRider till the end of the source String. Third scenario When you supply numeric or arithmetic expression or a DATE instead of character as Source string to SQL Substr function In this scenario If you have supplied a numeric string instead of character as source string, the oracle engine casts them as a character when they occur as parameter to SQL Substr function. And if you have supplied Arithmetic expression or a DATE then The Oracle engine first solves or evaluates the Arithmetic expression or the DATE Then casts them as a character. Means if you have arithmetic expression in your source string then oracle will first solve it and then change or say cast the value of its result into character. Let's see some example. SELECT substr(50000-7,2,4) FROM dual; Oracle first evaluates the arithmetic expression that is 50000-7 equals to 49993. And then oracle engine casts this result 49993 into a character string. Means 49993 will be a 5 characters string. Starting position of substring is 2, that means from the first 9 of 49993 We specified the length of substring is 4 so we must get 9993 as our result. Let's check execute
Views: 78953 Manish Sharma
Sql Training Online - Cast Function
 
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Learn about the Cast function in the SQL Language. Visit http://www.SqlTrainingOnline.com for 30 more FREE videos. The Microsoft SQL Server 2012 cast function is used to convert or change a column datatype when you are querying or filtering in a SQL statement You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 14870 Joey Blue
Oracle TO_DATE Function Explained with Examples
 
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https://www.databasestar.com/oracle-to_date/ The Oracle TO_DATE function is one of the most useful conversion functions in Oracle. It can be a little confusing though. The TO_DATE function is used to convert a character value to a date value. You can use it to convert a string that is in the format of a date, into a date data type. Why would you use this? Converting a character to a date is helpful if you want to insert a date into a column in a table. Being specific about the format (explicit) is better than assuming the conversion will be done for you (implicit). This TO_DATE function only converts to a DATE data type. If you want to convert to the other datetime data types, you’ll have to use other functions such as TO_TIMESTAMP or TO_TIMESTAMP_TZ. The syntax for this function is: TO_DATE(charvalue [, format_mask [, nls_date_language]]) The parameters for this function are: Charvalue: This is the character value that you want to convert to a date. It’s the main input of the function. Format_mask: This is the format that the input value, the charvalue, is in. This is used to help convert your character value into a date, as your character may be in a different format to the default. Nls_date_language: this is used to determine how the output is displayed. For more information about the Oracle TO_DATE function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-to_date/
Views: 977 Database Star
Cast and Convert functions in SQL Server   Part 28
 
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In this video we will learn, converting one data type to another using cast() and convert() functions. We will also learn how to use the style parameter, with convert() function. Finally we will look at a practical example of using CAST or CONVERT functions, along with group by. We will also talk about the differences between CAST and CONVERT functions and when to choose one over the other. Text version of the video http://csharp-video-tutorials.blogspot.com/2012/09/cast-and-convert-functions-in-sql.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-28-cast-and-convert-functions.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 172715 kudvenkat
SQL: Extract function
 
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In this tutorial, you'll learn how to make use of extract function. PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 3644 radhikaravikumar
Select Statement With Cast Convert Distinct Top
 
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Cast, Convert, Distinct and Top Keywords. Free SQL Server Tutorial Free SQL Server 2014 Tutorial How to use CAST in SQL Server ? How to use Convert in SQL Server ? How to use DISTINCT in SQL Server ? How to use TOP in SQL Server ? How to use TOP WITH TIES in SQL Server ?
Views: 1714 Mayank Sanghvi
SQL CAST Function - how to use CAST Function
 
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SQL CAST function converts an expression from one datatype to another datatype. visit Dose for excel Add-In website: http://www.zbrainsoft.com/ Visit our channel: https://www.youtube.com/channel/UCI4bMWYzrBTs47KINXL92Kw
SQL Into - How to Copy Table Data with Select Into Statement - SQL Training Online
 
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http://www.sqltrainingonline.com SQL Into - How to Copy Table Data with Select Into Statement - SQL Training Online In this video, I show you how to copy data using the SQL INTO statement. Including a trick to copy only a table schema in SQL Server. How do you copy a whole table in SQL Server? You often see the SQL INTO statement when you are using INSERT, but there is a special INTO statement in SQL Server that is used with the SELECT statement that allows you to make a copy of a table for development, testing, or whatever purpose you can think of. So, to start, let's take a look at the SQL Training Online Simple DB employee table. You can see that we have 14 records Now, all we have to do to make a copy of the table is to simply add the SQL INTO clause: SELECT * INTO EMPLOYEE_TEST FROM EMPLOYEE If we run that, you see that we made a copy of the table with all of the data. Now, I want to go ahead and empty the employee_test table and show you how to use the INSERT INTO. If you already have a copy of the table, (I will show you a shortcut in a minute on how to create a copy without data.) then you can use the following insert into statement: INSERT INTO EMPLOYEE_TEST SELECT * FROM EMPLOYEE After running that statement, you see that I have inserted data from the Employee table into the employee_test table. This is sometimes referred to as INSERT INTO SELECT. But, there is one trick that I have used throughout the years that is pretty cool. Sometimes, you want the table schema, but you don't want the data. Now, I know that you can use Management Studio to script out the table for you, but there is an easier way that is more flexible as far as I am concerned. That is to use the SELECT INTO FROM, but put the following in the WHERE clause: SELECT * INTO EMPLOYEE_TEST FROM EMPLOYEE WHERE 1=2 The 1=2 makes is so not data will come over, but you get the new table with the right column types. Is that pretty cool? I have found many uses for this over the years. Let me know what you think bellow. Let me know what you think by commenting or sharing on twitter, facebook, google+, etc. If you enjoy the video, please give it a like, comment, or subscribe to my channel. You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 22528 Joey Blue
SQL Date Comparison - How to filter Datetime in SQL Server - SQL Training Online
 
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http://www.sqltrainingonline.com SQL Date Comparison - How to filter Datetime in SQL Server - SQL Training Online In this video, I show you how to do a SQL Date Comparison in SQL Server when your Datetime has an actual time in it. I also include the latest trick that will make this easier if you are using SQL Server 2008 or SQL Server 2012. How do you compare a Datetime in SQL Server? A SQL Datetime stores both Date and Time. So when you are filtering using the SQL Where clause, you have to know if you Datetime is storing the time also. Let's take a look at the employee table in SQL Training Online Simple DB The column we are looking at is the hire date. I want to go after the person who was hired on February, 22 2005. So, I use the following SQL. select * from employee where hire_date='02/22/2005' Now, this works because we don't have any times stored in this column. But, if I change the record from 2005-02-22 00:00:00.000 to 2005-02-22 08:22:25.000 and rerun the query, you see that I don't get any results. That is because the value of 02/22/2005 is really 2005-02-22 00:00:00.000 and I just changed the hire_date to include a time other than 00:00:00.000. So, I have to tweak my query to use a greater than and less than sign. This works. But, to really understand what is going on, let me show you what SQL Server really sees. There are other ways, and in this StackOverflow article you can read more about these other ways. But, I want to point out a few. If you are working in SQL Server 2005 or earlier, the following is supposed to be the fastest performing way to do this. select datediff(dd,0, hire_date),* from employee where dateadd(dd,0, datediff(dd,0, hire_date)) = '2005-02-22' But, if you are working in SQL Server 2008 or SQL Server 2012, they have introduced an actual Date datatype that doesn't include the Time portion. Since this is the case, you can use the CAST function to remove the time from the Datetime. Here is the SQL to do that. select * from employee where CAST(hire_date AS Date) = '2005-02-22' And that's it. If you enjoy the video, please give it a like, comment, or subscribe to my channel. You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 27461 Joey Blue
IsDate, Day, Month, Year and DateName DateTime functions in SQL Server   Part 26
 
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In this video we will learn about built-in date and time functions in sql server, specifically IsDate, Day, Month, Year and DateName functions. Finally a practical example of using these DateTime functions. Text version of the video http://csharp-video-tutorials.blogspot.com/2012/09/isdate-day-month-year-and-datename.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-26-datetime-functions-continued.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 144899 kudvenkat
TSQL: How To Use CASE WHEN Statements
 
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How to use CASE WHEN statements in SQL Server.
Views: 27706 SQLInSix Minutes
SQL Tutorial - SQL DATE Functions like GETDATE, DATEADD, CONVERT
 
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http://www.learningsqlserver2008.com/ https://youtu.be/KmsmPOImpHo - Date functions in SQL Server 2012 GETDATE -- Today's date DATEADD - adding time interval to an existing Date DATEPART - return part of the date like year or month DATEDIFF - Give you the different between two dates DAY - returns the day of the month MONTH - return the Month of the Year YEAR - returns the year in the Sql expression CAST - Converts an expression of one data type to another in SQL Server 2008 R2 CONVERT - Convert expressions of one data type to another in sql server r2 SQL Tutorial
Views: 57124 baghul
Oracle RPAD Function
 
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https://www.databasestar.com/oracle-lpad/ The Oracle RPAD function is used to add extra characters to the right of a text value. This is called “padding”, and the function is called RPAD because the R stands for “right” and it “right pads” a text value. It’s the opposite of LPAD, which pads characters to the left of the value. The RPAD function can be useful for ensuring all values are the same length, or if there is another requirement you have for adding characters to the end. The syntax is: RPAD(expr, length [,pad_expression]) The expr parameter is the text value you want to pad or add characters to. The length is the total length the expression or value will be after the padding has been done. It’s not the number of characters to add. The pad_expression is an optional field and is the character or characters to add to the right end of the string. The default value is a space. If the length specified in the function is shorter than the length of the string, then the string is truncated to meet the length. For more information about the Oracle RPAD (and LPAD) function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-lpad/
Views: 178 Database Star
List all tables in a sql server database using a query  Part 65
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2013/06/part-65-list-all-tables-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-65-list-all-tables-in-sql-server.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss, writing a transact sql query to list all the tables in a sql server database. This is a very common sql server interview question. Object explorer with in sql server management studio can be used to get the list of tables in a specific database. However, if we have to write a query to achieve the same, there are 3 system views that we can use. 1. SYSOBJECTS - Supported in SQL Server version 2000, 2005 & 2008 2. SYS.TABLES - Supported in SQL Server version 2005 & 2008 3. INFORMATION_SCHEMA.TABLES - Supported in SQL Server version 2005 & 2008 -- Gets the list of tables only Select * from SYSOBJECTS where XTYPE='U' -- Gets the list of tables only Select * from SYS.TABLES -- Gets the list of tables and views select * from INFORMATION_SCHEMA.TABLES To get the list of different object types (XTYPE) in a database Select Distinct XTYPE from SYSOBJECTS Executing the above query on my SAMPLE database returned the following values for XTYPE column from SYSOBJECTS IT - Internal table P - Stored procedure PK - PRIMARY KEY constraint S - System table SQ - Service queue U - User table V - View Please check the following MSDN link for all possible XTYPE column values and what they represent. http://msdn.microsoft.com/en-us/library/ms177596.aspx
Views: 88018 kudvenkat
Sql Training Online - Sql Count Function
 
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Learn about the Count function in the SQL Language. Visit http://www.SqlTrainingOnline.com for 30 more FREE videos. The Microsoft SQL Server 2012 SQL Count Function is used to give you a total number of records in your resultset or within a group of data. You would group the data using a group by clause in the SQL Statement. You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 21359 Joey Blue
SQL Server    Select from Date Part of DateTime Field with Cast
 
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Declare @t1 Table (OrderNumber int, OrderDate DateTime) INSERT INTO @t1 VALUES (1, GETDATE()) INSERT INTO @t1 VALUES (2,GETDATE()) Select * from @t1 Select * from @t1 where CAST(OrderDate as Date) = '2017-05-27'
Views: 403 CKWTech LLC
Part 6   Transform rows into columns in sql server
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/06/part-6-transform-rows-into-columns-in.html This is another common sql server interview question. We will be using Countries table in this example. SQL to create the table Create Table Countries ( Country nvarchar(50), City nvarchar(50) ) GO Insert into Countries values ('USA','New York') Insert into Countries values ('USA','Houston') Insert into Countries values ('USA','Dallas') Insert into Countries values ('India','Hyderabad') Insert into Countries values ('India','Bangalore') Insert into Countries values ('India','New Delhi') Insert into Countries values ('UK','London') Insert into Countries values ('UK','Birmingham') Insert into Countries values ('UK','Manchester') Here is the interview question. Write a sql query to transpose rows to columns. Using PIVOT operator we can very easily transform rows to columns. Select Country, City1, City2, City3 From ( Select Country, City, 'City'+ cast(row_number() over(partition by Country order by Country) as varchar(10)) ColumnSequence from Countries ) Temp pivot ( max(City) for ColumnSequence in (City1, City2, City3) ) Piv
Views: 184557 kudvenkat
XMLTABLE : Convert XML into Rows and Columns using SQL
 
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This video gives a quick overview of the XMLTABLE functionality, which can be used to convert XML documents in to rows and columns in SQL. For more information see: https://oracle-base.com/articles/misc/xmltable-convert-xml-data-into-rows-and-columns-using-sql https://oracle-base.com/articles/misc/sqlxml-sqlx-generating-xml-content-using-sql Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Mike Hichwa : Twitter : https://twitter.com/mikehichwa1 Cameo appearances are for fun, not an endorsement of the content of this video. All trademarks, product names and logos are the property of their respective owners.
Views: 21093 ORACLE-BASE.com
Row Number function in SQL Server
 
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sql server row_number example sql server row number by partition sql server row_number over partition by order by In this video we will discuss Row_Number function in SQL Server. This is continuation to Part 108. Please watch Part 108 from SQL Server tutorial before proceeding. Row_Number function Introduced in SQL Server 2005 Returns the sequential number of a row starting at 1 ORDER BY clause is required PARTITION BY clause is optional When the data is partitioned, row number is reset to 1 when the partition changes Syntax : ROW_NUMBER() OVER (ORDER BY Col1, Col2) Row_Number function without PARTITION BY : In this example, data is not partitioned, so ROW_NUMBER will provide a consecutive numbering for all the rows in the table based on the order of rows imposed by the ORDER BY clause. SELECT Name, Gender, Salary, ROW_NUMBER() OVER (ORDER BY Gender) AS RowNumber FROM Employees Please note : If ORDER BY clause is not specified you will get the following error The function 'ROW_NUMBER' must have an OVER clause with ORDER BY Row_Number function with PARTITION BY : In this example, data is partitioned by Gender, so ROW_NUMBER will provide a consecutive numbering only for the rows with in a parttion. When the partition changes the row number is reset to 1. SELECT Name, Gender, Salary, ROW_NUMBER() OVER (PARTITION BY Gender ORDER BY Gender) AS RowNumber FROM Employees Use case for Row_Number function : Deleting all duplicate rows except one from a sql server table. Discussed in detail in Part 4 of SQL Server Interview Questions and Answers video series. Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/rownumber-function-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/rownumber-function-in-sql-server_30.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 77576 kudvenkat
SQL tutorial 68: Union and Union All SQL Set Operator In Oracle Database By RebellionRider
 
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Union and Union all Set operator in SQL/Oracle Database with example also the difference between union and union all. NExt tutorial will cover Intersect and minus set operator. Manish Sharma RebellionRider ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog :http://bit.ly/union-union-all-set-operator-oracle ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 24674 Manish Sharma
SQL Tutorial - 34: ROUND() Function
 
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In this tutorial we'll see how we can round off numbers conveniently in SQL using the ROUND() Function/
Views: 34872 The Bad Tutorials
SQL Server Express 2008 R2 Tutorial 6 - Inserting Data In Tables Using The While Loop
 
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http://www.schoolfreeware.com This tutorial will start by declaring variables. Integer and varchar are shown. The @ is used to declare variables. For a list of supported variables see the MSDN variable page: http://msdn.microsoft.com/en-us/library/ms188927.aspx The while loop will be used to insert data into the table. Cast, Set and Count commands are also used.
Views: 36609 SchoolFreeware
Get Decimal/Float output from Integer Division in SQL Server - SQL Server Tutorial
 
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In this video we will learn how to get decimal/float output from Integer division in SQL Server. I am creating this video to answer once of the question that I posted while back for TSQL Interview Question list "If I run Select 100/11 what output will I get?" When you divide Integer by an Integer in SQL Server, SQL Server returns Integer output. As we can see from our above example, SQL Server output is Integer for Integers division. If we want to get float or Decimal output, Either our denominator or Numerator should be float or decimal type. If we have both denominator or numerator as Integers, we can use convert or cast functions to convert one of them to float/decimal so we can get our results as float/decimal. There are multiple techniques you can use to convert/cast to integer to float/decimal, here are some examples SELECT CAST(100 AS FLOAT) /11 AS OutputResult SELECT 100/CAST(11 AS FLOAT) AS OutputResult SELECT 100/CAST(11 AS DECIMAL(12,0)) AS OutputResult SELECT CAST(100 AS DECIMAL(12,0))/11 AS OutputResult Blog post link with scripts used in the video http://sqlage.blogspot.com/2015/02/how-to-get-decimail-output-from.html
Views: 10923 TechBrothersIT
37. Conversion Functions To Char, To Date, NVL, Decode in PL/SQL Oracle
 
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In this video you will learn about Conversion Functions To Char, To Date, NVL, Decode in PL/SQL Oracle. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 8965 ITORIAN
89. CONCAT Function in SQL (Hindi)
 
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Please Subscribe Channel Like, Share and Comment Visit : www.geekyshows.com
Views: 6162 Geeky Shows
SQL Server - Query Table Record Data via TSQL - SELECT A + B  (concatenation example)
 
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How to concatenate fields in a query. This tutorial covers not only how to concatenate two fields but also how to use the CAST() function to convert a numeric field into a text field.
Views: 539 Dave Merton
HOW TO WRAP PLSQL CODE IN ORACLE DATABASE
 
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HOW TO WRAP A PL/SQL CODE IN ORACLE DATABASE ============================================ wrap iname=testproc.sql oname=testproc.plb HOW TO CREATE A PROCEDURE ========================== create or replace procedure test as begin dbms_output.put_line('Welcome to ORACLE DBA'); end; / HOW TO CHECK THE CONTENT OF PROCEDURE ======================================== select owner,object_name from dba_objects where object_name like '&object_name'; select text from dba_source where name='&name'; HOW TO EXECUTE A PROCEDURE ========================== set serveroutput on; exec test HOW TO READ A FILE FROM COMMAND PROMPT ====================================== type testproc.sql type testproc.plb PL/SQL files extension ======================= .pls - PL/SQL source .plb - PL/SQL binary .pks - Package source or package specification .pkb - Package binary or package body .pck - Combined package specification plus body
Views: 1817 Praveen Biyyapu
Date Select In SQL Server (datename, getdate and convert) Queries
 
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SQL Server tutorial on getting the current system date and date formats using datename, getdate and convert method on remote database of myLittleAdmin
19- CTE,Select into,Sub-query,union
 
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CTE,Select into,Sub-query,union -------------------------------------------------- 1-string Function Reverse 2- CTE Common Table Expression 3- Select into 4- Select into With Join 5- Join more two table 6- Subquey - all - any - exists 7-union union All Except intersect -------------------------------------------------------------------- أرجوا لو الفيديو عجبك تضغط أعجبني --- ولو في أي تعليق ممكن تبعتلي وشكرا
Views: 662 sayed hawas
transact SQL , les vaiable (DECLARE, SELECT, PRINT, CONVERT, CAST, SET) sql SERVER
 
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SQL server transact sql declare , select , set , print , cast , convert شرح المتغيرات قواعد البيانات بالدارجة قواعد البيانات شرح المتغيرات بالدارجة
Views: 1399 DivOne Dix-Neuf Cent
Lead and Lag functions in SQL Server 2012
 
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In this video we will discuss about Lead and Lag functions. Lead and Lag functions Introduced in SQL Server 2012 Lead function is used to access subsequent row data along with current row data Lag function is used to access previous row data along with current row data ORDER BY clause is required PARTITION BY clause is optional Syntax LEAD(Column_Name, Offset, Default_Value) OVER (ORDER BY Col1, Col2, ...) LAG(Column_Name, Offset, Default_Value) OVER (ORDER BY Col1, Col2, ...) Offset - Number of rows to lead or lag. Default_Value - The default value to return if the number of rows to lead or lag goes beyond first row or last row in a table or partition. If default value is not specified NULL is returned. We will use the following Employees table for the examples in this video SQL Script to create the Employees table Create Table Employees ( Id int primary key, Name nvarchar(50), Gender nvarchar(10), Salary int ) Go Insert Into Employees Values (1, 'Mark', 'Male', 1000) Insert Into Employees Values (2, 'John', 'Male', 2000) Insert Into Employees Values (3, 'Pam', 'Female', 3000) Insert Into Employees Values (4, 'Sara', 'Female', 4000) Insert Into Employees Values (5, 'Todd', 'Male', 5000) Insert Into Employees Values (6, 'Mary', 'Female', 6000) Insert Into Employees Values (7, 'Ben', 'Male', 7000) Insert Into Employees Values (8, 'Jodi', 'Female', 8000) Insert Into Employees Values (9, 'Tom', 'Male', 9000) Insert Into Employees Values (10, 'Ron', 'Male', 9500) Go Lead and Lag functions example WITHOUT partitions : This example Leads 2 rows and Lags 1 row from the current row. When you are on the first row, LEAD(Salary, 2, -1) allows you to move forward 2 rows and retrieve the salary from the 3rd row. When you are on the first row, LAG(Salary, 1, -1) allows us to move backward 1 row. Since there no rows beyond row 1, Lag function in this case returns the default value -1. When you are on the last row, LEAD(Salary, 2, -1) allows you to move forward 2 rows. Since there no rows beyond the last row 1, Lead function in this case returns the default value -1. When you are on the last row, LAG(Salary, 1, -1) allows us to move backward 1 row and retrieve the salary from the previous row. SELECT Name, Gender, Salary, LEAD(Salary, 2, -1) OVER (ORDER BY Salary) AS Lead_2, LAG(Salary, 1, -1) OVER (ORDER BY Salary) AS Lag_1 FROM Employees Lead and Lag functions example WITH partitions : Notice that in this example, Lead and Lag functions return default value if the number of rows to lead or lag goes beyond first row or last row in the partition. SELECT Name, Gender, Salary, LEAD(Salary, 2, -1) OVER (PARTITION By Gender ORDER BY Salary) AS Lead_2, LAG(Salary, 1, -1) OVER (PARTITION By Gender ORDER BY Salary) AS Lag_1 FROM Employees Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/lead-and-lag-functions-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/lead-and-lag-functions-in-sql-server_5.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 48185 kudvenkat
SQL Tutorial - 43: REPEAT() & REPLACE() Functions
 
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In this tutorial we'll learn to repeat a string a few times and also replace a part or all of a string with another string using the REPEAT and REPLACE Functions respectively.
Views: 20742 The Bad Tutorials
Union and union all in sql server   Part 17
 
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In this video we will learn about the 1. Purpose of UNION and UNION ALL 2. Difference between UNION and UNION ALL 3. Difference between JOIN and UNION Text version of the video http://csharp-video-tutorials.blogspot.com/2012/08/union-and-union-all-in-sql-server-part.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-17-union-and-union-all.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 251740 kudvenkat
SQL Server - Query Table Record Data via TSQL - SELECT CASE statement logic and field concatenation
 
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How to concatenate fields in a query and how to use the CASE statement. This tutorial covers not only how to concatenate two fields but also how to use the CAST() function to convert a numeric field into a text field.
Views: 609 Dave Merton
How to use Sum, Avg and Count in Select Statement - SQL Server / TSQL Tutorial Part 128
 
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How to use Sum, Avg and Count in Select Statement Scenario: Let's say that you have dbo.Customer table with SaleAmount column and you are asked to write a query that should return you sum of SaleAmount, Average of SaleAmount and Count of all the records. Solution: You can use Aggregate functions such as Sum, Avg and count in TSQL to find the answer of your question. Let's create dbo.Customer Table with sample data so we can use Sum, Avg and Count aggregate functions. Link to scripts used in SQL Server / TSQL Tutorial Video http://www.techbrothersit.com/2017/03/how-to-use-sum-avg-and-count-in-select.html Check out our website for Different SQL Server, MSBI tutorials and interview questions such as SQL Server Reporting Services(SSRS) Tutorial SQL Server Integration Services(SSIS) Tutorial SQL Server DBA Tutorial SQL Server 2016 DBA Tutorial SQL Server / TSQL Tutorial ( Beginner to Advance) http://www.techbrothersit.com/
Views: 1545 TechBrothersIT
ORACLE SQL AND PL/SQL INTERVIEW QUESTION : HOW TO CHANGE DATATYPE IN ORACLE SQL?
 
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This video contains a demonstration on how to change the datatype of a column containing data, the video shows two approaches through which any user can easily change the datatype of a column in a table, the video also helps in solving the Oracle ORA-01440 error.
Views: 947 Kishan Mashru
How To Using Date Fomat In SQL Server
 
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This video for the SQL Programmer beginner only it will show you how to using date format in SQL Server
Views: 11095 Sourn Sarim
SELECT STATMENTS DISTINCT KEYWORD AND COUNT FUNCTION IN SQL
 
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HOW TO GET ALL COLUMNS WITH ALL ROWS, HOW TO GET UNIQUE VALUES FROM A COLUMN AND USE OF COUNT FUNCTION
Views: 26 Dilip MJ Gangwar
Oracle LENGTH Function
 
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https://www.databasestar.com/oracle-length/ The Oracle LENGTH function allows you to find the length of a string, also known as the number of characters in a string. It’s a common feature in different languages, and SQL is no different. The LENGTH function only has one parameter: LENGTH ( string_value ) The parameter is the string_value which is the value to check the length of. The function returns a number that represents the number of characters in the function. Some points to remember about the Oracle LENGTH function: If string_value is NULL, then LENGTH will return NULL. If string_value is an empty string, the LENGTH will return NULL. The string_value can be any of the character data types - CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, NCLOB. If the string_value is a CHAR data type, then the LENGTH will include any trailing spaces in the value. For more information about the Oracle LENGTH function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-length/
Views: 301 Database Star
SQL Server - Query Table Record Data via TSQL - SELECT ISNULL
 
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How to use the ISNULL() function in SQL Server to reset record fields with null values to something that is more workable. This tutorial also briefly covers concatenation with null values as well as the CAST() function.
Views: 246 Dave Merton
How to Code Oracle FIRST LAST Aggregate Functions
 
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Learn Advanced Oracle SQL Aggregate functions FIRST and LAST. View all lessons in this tutorial at http://www.skillbuilders.com/advanced-aggregations-with-oracle-sql
Views: 774 SkillBuilders
How to convert number to text in Oracle SQL
 
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How to convert number to text in Oracle SQL
Views: 442 Tanmun
SQL: Views
 
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This SQL screen cast will introduce the viewer to SQL views. You will learn how to create your own views in SQL, find them in the INFORMATION_SCHEMA, and alter their contents. Querying the view using the select statement will be demonstrated.
Views: 99764 Michael Fudge
Função Oracle FLOOR
 
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Acesse o desafio: http://novidades.aprendaplsql.com/15-dias-de-funcoes-oracle A função FLOOR retornar o menor valor inteiro do parâmetro do tipo NUMBER que é passado. Abaixo exemplos da utilização da Função ORACLE FLOOR SELECT FLOOR(TO_NUMBER('10.2')) AS FLOOR FROM DUAL; SELECT FLOOR(-4.7) AS FLOOR FROM DUAL; SELECT FLOOR(TO_NUMBER('7.3')) AS FLOOR FROM DUAL; SELECT FLOOR(TO_NUMBER('7.9')) AS FLOOR FROM DUAL; https://www.youtube.com/playlist?list=PLMaqczuL07LkjrX6Rvx6TdNM-1nbUKG8p
Views: 811 Aprenda PL/SQL
Oracle SQL Developer Web: CREATE and EDIT TABLEs
 
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Demonstration of using Oracle SQL Developer Web's GUIs for creating a new table or editing an existing table - all in your browser.
Views: 791 Jeff Smith
SQL 064 Scalar Functions CAST or How can I convert data types
 
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Explains the Scalar Function CAST for changing a value from one to another data type. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and Sequel Server.
Views: 1401 cbtinc
Single Row Conversion Functions Querying a table in Oracle SQL
 
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This video shows how to Create Single Row Conversion Functions in Oracle SQL. Try to share these videos for poor students and subscribe this channel for more upcoming other technical videos.
Views: 21 Technology mart

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