To use while loop in stored procedure we need to write the query like this
DECLARE @loop INT
SET @loop = 0
WHILE @loop <= 10
BEGIN
SET @loop = @loop + 1
PRINT @loop
END
|
If we run above query we will get output like as shown below
Output:
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If we want to Nested while loops we need to write the query like this
DECLARE @loop1 INT
DECLARE @loop2 INT
SET @loop1 = 1
WHILE @loop1 <= 3
BEGIN
SET @loop2 = 1
WHILE @loop2 <= 2
BEGIN
PRINT CONVERT(VARCHAR, @loop1) + ' * ' + CONVERT(VARCHAR, @loop2)+ ' = ' + CONVERT(VARCHAR, @loop1 * @loop2)
SET @loop2 = @loop2 + 1
END
SET @loop1 = @loop1 + 1
END
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If we run above query we will get output like as shown below
Output:
 |
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