Can We Use Loop While Writing Sql Query

Types of Loops 1. WHILE Loop. The WHILE loop is the most common loop in SQL and is used to execute a block of SQL statements as long as a given condition remains true. The syntax for WHILE loop is as follows WHILE condition BEGIN -- SQL statements to execute END Here's an example to print the value of counter from 1 to 5 using a WHILE loop

Here's how you can achieve this using a SQL FOR loop In this example, we declare variables, initialize them, and use a WHILE loop to iterate through the employees.

Here is a complete guide to using loops in SQL that you can refer to for mastering them and using them proficiently 23 January 2025. After learning the basics of SQL, it's essential to continue exploring advanced topics to enhance your query-writing skills and deepen your knowledge. Types of Loops in SQL. a. WHILE Loop Executes a block

To learn more, see our tips on writing great answers. Sign up or log in. Sign up using Google Sign up using Email and Password Submit. Post as a guest. Name. Email. Required, but never shown SQL while loop with select query. 0. while loop select in SQL Server. 0. how to create while loop in select? 1.

Loops in SQL Server. In SQL Server, a loop is the technique where a set of SQL statements are executed repeatedly until a condition is met. SQL Server supports the WHILE loop. The execution of the statements can be controlled from within the WHLE block using BREAK and CONTINUE keywords.

CONTINUE statement is used in the SQL WHILE loop in order to stop the current iteration of the loop when certain conditions occur, and then it starts a new iteration from the beginning of the loop. Assume that we want to write only even numbers in a WHILE loop. In order to overcome this issue, we can use the CONTINUE statement. In the following

Any Transact-SQL statement or statement grouping as defined with a statement block. To define a statement block, use the control-of-flow keywords BEGIN and END. BREAK. Causes an exit from the innermost WHILE loop. Any statements that appear after the END keyword, marking the end of the loop, are executed. CONTINUE. Restarts a WHILE loop.

In this article I will explain with an example, how to use WHILE loop in SQL SELECT query without using Stored Procedure using Cursor in SQL Server. Cursor is supported in following SQL Server versions i.e. 2008, 2008R2, 2012, 2014, 2016, 2017, 2019 and 2022.

While this example uses an infinite loop, we usually want to avoid infinite loops. But the example demonstrates that we can break out of the loop based on a certain condition being met. WHILE Loop with CONTINUE. The CONTINUE argument restarts a WHILE loop. Any statements after the CONTINUE keyword are ignored. CONTINUE is often opened by an IF

We have new examples to generate backups of multiple databases using a cursor, a WHILE loop, and a simple query to generate backup statements. For more information about this code, please refer to this article Simple script to backup all SQL Server databases .