while不支持嵌套麽？该如何处理

while不支持嵌套麽？？
DECLARE   @A   INT
DECLARE   @AA   INT

DECLARE   @B   INT
DECLARE   @BB   INT

SET   @A=1
我想使用2个循环打印出100个A
------------
SET   @AA=10

SET   @B=1
SET   @BB=10

WHILE   @A <[email protected]
BEGIN
WHILE   @B <[email protected]
BEGIN
PRINT   'A '
SET   @B=   @B+1
END
SET   @[email protected]+1
END

------解决方案--------------------
--try
DECLARE @A INT
DECLARE @AA INT

DECLARE @B INT
DECLARE @BB INT

SET @A=1
SET @AA=10

SET @B=1
SET @BB=10

WHILE @A <[email protected]
BEGIN
WHILE @B <[email protected]
BEGIN
print 'A '
SET @B= @B+1
END
select @[email protected]+1,@B = 1
END

------解决方案--------------------

DECLARE @A INT
DECLARE @AA INT

DECLARE @B INT
DECLARE @BB INT

SET @A=1
--我想使用2个循环打印出100个A
------------
SET @AA=10

SET @BB=10

WHILE @A <[email protected]
BEGIN

SET @B=1 --这里要赋初值

WHILE @B <[email protected]
BEGIN
PRINT 'A '
SET @B= @B+1
END
SET @[email protected]+1
END