Do WHILE LOOP in SQL Server example?
UNTIL version of SQL server.
- DO.. WHILE Loop.
- REPEAT..UNTIL Loop. DECLARE @X INT = 1; WAY: — Here the REPEAT statement PRINT @X; SET @X += 1; IFNOT(@X > 10) GOTO WAY;
- FOR Loop. DECLARE @cnt INT = 0; WHILE @cnt < 10 BEGIN PRINT ‘Inside FOR LOOP’; SET @cnt = @cnt + 1; END; PRINT ‘Done FOR LOOP’;
What is WHILE LOOP in SQL Server?
Sets a condition for the repeated execution of an SQL statement or statement block. The statements are executed repeatedly as long as the specified condition is true. The execution of statements in the WHILE loop can be controlled from inside the loop with the BREAK and CONTINUE keywords.
How do you run a loop in SQL Server?
The syntax for the While Loop in SQL Server (T-SQL) is, WHILE BEGIN. …For example,
- DECLARE @numValue INT = 0.
- WHILE @numValue < 5.
- BEGIN.
- SET @numValue = @numValue + 1.
- PRINT ‘Inside WHILE LOOP ‘ + CAST(@numValue AS VARCHAR) + ‘ !! ‘
- END.
- PRINT ‘WHILE LOOP End !! ‘
What is an example of a WHILE LOOP?
A “While” Loop is used to repeat a specific block of code an unknown number of times, until a condition is met. For example, if we want to ask a user for a number between 1 and 10, we don’t know how many times the user may enter a larger number, so we keep asking “while the number is not between 1 and 10”.
Can we use loop in SQL?
SQL WHILE loop provides us with the advantage to execute the SQL statement(s) repeatedly until the specified condition result turn out to be false. Otherwise, the code flow will exit the loop. If any SQL statement exists outside the loop, it will be executed.
How do I stop a WHILE LOOP in SQL?
SQL Server BREAK statement overview To exit the current iteration of a loop, you use the BREAK statement. In this syntax, the BREAK statement exit the WHILE loop immediately once the condition specified in the IF statement is met. All the statements between the BREAK and END keywords are skipped.
How do you write a WHILE LOOP in SQL?
SQL While loop syntax The while loop in SQL begins with the WHILE keyword followed by the condition which returns a Boolean value i.e. True or False. The body of the while loop keeps executing unless the condition returns false. The body of a while loop in SQL starts with a BEGIN block and ends with an END block.
Do WHILE loop in SQL procedure?
The WHILE statement defines a set of statements to be executed until a condition that is evaluated at the beginning of the WHILE loop is false. The while-loop-condition (an expression) is evaluated before each iteration of the loop.
What is for loop in PL SQL?
PL/SQL for loop is used when when you want to execute a set of statements for a predetermined number of times. The loop is iterated between the start and end integer values. The counter is always incremented by 1 and once the counter reaches the value of end integer, the loop ends.
