DECLARE @i INT ,@j INT
SET @i=1
set @j=1
WHILE @i<4
BEGIN
PRINT ‘satrt i:‘+CAST(@i AS varchar)
WHILE @j<4
BEGIN
PRINT ‘j:‘+CAST(@j AS varchar)
SET @j=@j+1
END
set @j=1
set @i=@i+1
END 原文：https://www.cnblogs.com/accumulater/p/13085230.html