Wednesday, December 21, 2011

Using While Loop for SQL Server| Example of WHILE Loop With CONTINUE and BREAK

1) Example of WHILE Loop
DECLARE @intFlag INT
SET
@intFlag = 1
WHILE (@intFlag <=5)
BEGIN
PRINT
@intFlag
SET @intFlag = @intFlag + 1
END
GO

ResultSet:
1
2
3
4
5
2) Example of WHILE Loop with BREAK keyword
DECLARE @intFlag INT
SET
@intFlag = 1
WHILE (@intFlag <=5)
BEGIN
PRINT
@intFlag
SET @intFlag = @intFlag + 1
IF @intFlag = 4
BREAK;
END
GO

ResultSet:
1
2
3
3) Example of WHILE Loop with CONTINUE and BREAK keywords
DECLARE @intFlag INT
SET
@intFlag = 1
WHILE (@intFlag <=5)
BEGIN
PRINT
@intFlag
SET @intFlag = @intFlag + 1
CONTINUE;
IF @intFlag = 4 -- This will never executed
BREAK;
END
GO

ResultSet:
1
2
3
4
5

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