sql server 数据遍历插入表变量

 DECLARE @T_test TABLE (newcode NVARCHAR(100))
 DECLARE @str VARCHAR(MAX)
     ,@split VARCHAR(10)
     ,@start INT
     ,@end INT
     ,@newcode VARCHAR(10)
 
 SET @str = '1,2,3,4,5,6,7,8'
 SET @split = ','
 SET @end = 1
 SET @start = 0
 
 WHILE (@end > 0)
 BEGIN
     SET @end = CHARINDEX(@split, @str, @start + LEN(@split))
 
     IF @end = 0
     BEGIN
         SET @newcode = SUBSTRING(@str, @start + 1, LEN(@str) - @START)
     END
     ELSE
     BEGIN
         SET @newcode = SUBSTRING(@str, @start + 1, @end-@start-1)
     END
 
     SET @start = @end
 
     INSERT INTO @T_test (newcode)
     VALUES (@newcode)
 END
 
 SELECT *
 FROM @T_test