While sql

Only While Loop is officially supported by SQL server. Already there is answer for DO while loop. I am detailing answer on ways to achieve different types of loops in SQL server. If you know, you need to complete first iteration of loop anyway, then you can try DO. UNTIL version of SQL server.

WHILE LOOP with IF STATEMENT MYSQL - Stack.

Summary: in this tutorial, you will learn how to use the SQL Server WHILE statement to execute a statement block repeatedly based on a specified condition. Overview of WHILE statement. The WHILE statement is a control-flow statement that allows you to execute a statement block repeatedly as long as a specified is TRUE. The SQL While Loop is used to repeat a block of statements for given number of times, until the given condition is False. SQL Server While loop start with the condition an if the condition is True then statements inside the BEGIN.

END block will be executed otherwise, it won’t be executed. The Nested SQL While Loop is nothing but placing While Loop inside another While Loop. Nested loops are very useful, When you are working with multi-layered data because when we want to select the layered data, we have to use this Nested While loops to extract the layered data, but please be careful while using it.

SQL statements, each terminated by a semicolon (;) statement delimiter. After reading this article you will understand the basics of using the WHILE statement to write a loop within a stored procedure. All the examples for this lesson are based on Microsoft SQL Server Management Studio and the sample databases AdventureWorks and WideWorldImporters.

SQL is a standard language for storing, manipulating and retrieving data in databases. The condition in the WHILE is a Boolean expression that evaluates to TRUE, FALSE or NULL. A WHILE statement can be labeled.

I am new in using loop in SQL Server. In SQL Server, how to create while loop in select. I just wanted to ask why my code is not working? I am trying to have if statements within a loop and it will continue to process until it gets what it wanted.

APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse. I have tried to explain the usage of simple WHILE loop in the first example. CONTINUE keyword skips all the statement after its execution and control is sent to the first statement of while loop. BREAK exits the current WHILE loop.

In MySQL, the WHILE statement is used when you are not sure how many times you will execute the loop body and the loop body may not execute even once. SQL is set based and allows you to take a whole bunch of records and update them in a single command. The beauty of this is you can use the WHERE clause to filter certain rows that are not needed.

I want to break out of a single layer of them.

When I am looking for a forum post related to SQL Server, one of the junior professional is asking how to use a DO… WHILE loop is MS SQL Server. It is executed on row-by-row basis. Before going into discussion of while loop, we will discuss about temporary table in SQL.

Actually, we use temporary table for using while loop.