While Loop In Sql

Learn how to use the SQL Server WHILE statement to execute a statement block repeatedly as long as a specified condition is TRUE. See the syntax, examples and tips for using the WHILE loop in SQL Server.

The While loop starts with a loop condition. SQL Server evaluates the loop condition and executes the specified SQL statements if it is true. If the while condition is false, SQL Server exists the loop. Therefore, the SQL statement can run zero or multiple times.

The execution of statements in the WHILE loop can be controlled from inside the loop with the BREAK and CONTINUE keywords. Transact-SQL syntax conventions. Syntax. Syntax for SQL Server, Azure SQL Database, Azure SQL Managed Instance, and Microsoft Fabric. WHILE boolean_expression sql_statement statement_block BREAK CONTINUE

Learn how to use the WHILE loop in SQL Server to repeat a block of code until a condition is true. See syntax, examples, and tips for nested, broken, and data processing loops.

Start learning SQL today using these free tools with my guide Getting Started Using SQL Server. WHILE Statement, BREAK, and CONTINUE. The WHILE statement repeatedly executes a block of SQL statements. This is called a loop, and it continues until as long as the the WHILE statement's condition is true. The WHILE statements general format is

The WHILE loop, according to SQL Server Loop through Table Rows without Cursor article, states that a WHILE is faster than a cursor and uses less locks and use less TEMPDB resources. However, WHILE loops are still slow and have a performance impact. If it is a nested loop, it will be even worse.

This SQL Server tutorial explains how to use the WHILE LOOP in SQL Server Transact-SQL with syntax and examples. In SQL Server, you use a WHILE LOOP when you are not sure how many times you will execute the loop body and the loop body may not execute even once.

Learn how to use the SQL Server While Loop to repeat a block of statements until a condition is False. See the syntax, flow chart, and an example of adding numbers from 1 to 10 with a while loop.

While loop in SQL is a control structure, that executes a set of statements based on a condition. It executes a body of statements only if the condition expression mentioned is found to be TRUE. Otherwise, it terminates and exits the loop. WHILE LOOP helps perform repetitive and recursive tasks efficiently.

Learn how to use the SQL WHILE loop to execute a statement repeatedly until a condition is false. See examples of flowcharts, BREAK and CONTINUE statements, and reading table records with the WHILE loop.