--生成已用编号分布字符串的函数 CREATE FUNCTION f_GetStrSeries(@col1 varchar(10)) RETURNS varchar(8000) AS BEGIN DECLARE @re varchar(8000),@pid int SELECT @re='',@pid=-1 SELECT @re=CASE WHEN col2=@pid+1 THEN @re ELSE @re +CASE WHEN RIGHT(@re,CHARINDEX(',',REVERSE(@re)+',')-1)=@pid THEN '' ELSE CAST(-@pid as varchar) END +','+CAST(col2 as varchar) END, @pid=col2 FROM tb WHERE col1=@col1 ORDER BY col2 RETURN(STUFF(@re,1,2,'') +CASE WHEN RIGHT(@re,CHARINDEX(',',REVERSE(@re)+',')-1)=@pid THEN '' ELSE CAST(-@pid as varchar) END) END GO --生成缺号分布字符串的函数 CREATE FUNCTION f_GetStrNSeries(@col1 varchar(10)) RETURNS VARCHAR(8000) AS BEGIN DECLARE @re varchar(8000),@pid int SELECT @re='',@pid=0 SELECT @re=CASE WHEN col2=@pid+1 THEN @re ELSE @re+','+CAST(@pid+1 as varchar) +CASE WHEN @pid+1=col2-1 THEN '' ELSE CAST(1-col2 as varchar) END END, @pid=col2 FROM tb WHERE col1=@col1 ORDER BY col2 RETURN(STUFF(@re,1,1,'')) END GO --调用测试 --测试数据 CREATE TABLE tb(col1 varchar(10),col2 int) INSERT tb SELECT 'a',2 UNION ALL SELECT 'a',3 UNION ALL SELECT 'a',5 UNION ALL SELECT 'a',8 UNION ALL SELECT 'a',9 UNION ALL SELECT 'b',1 UNION ALL SELECT 'b',5 UNION ALL SELECT 'b',6 UNION ALL SELECT 'b',7 --查询 SELECT col1, col2_Series=dbo.f_GetStrSeries(col1), col2_Series=dbo.f_GetStrNSeries(col1) FROM tb GROUP BY col1 /*--结果 col1 col2_Series col2_Series -------------- ------------------------ -------------- a 2-3,5,8-9 1,4,6-7 b 1,5-7 2-4 --*/