求助呀!!多个字段合并到一个字段
create table t_source_bj (库存编号 varchar(10),名称 varchar(20),零件备注码1 varchar(20),零件备注码2 varchar(20),零件备注码3 varchar(20),零件备注码4 varchar(20),合并项 varchar(120));insert into t_source_bj values('0704008','产品1','a','b','b','c','abbc');insert into t_source_bj values('07043255','产品2','a','b','b','c','abbc');insert into t_source_bj values('0702348','产品22','a','f','b','c','afbc');insert into t_source_bj values('07432408','产品3','a','b','d','c','abdc');insert into t_source_bj values('0723438','产品0','a','c','b','c','acbc');
create table t_source_bj (库存编号 varchar(10),名称 varchar(20),零件备注码1 varchar(20),零件备注码2 varchar(20),零件备注码3 varchar(20),零件备注码4 varchar(20),合并项 varchar(120));insert into t_source_bj values('0704008','产品1','a','b','b','c',null);insert into t_source_bj values('07043255','产品2','a','b','b','c',null);insert into t_source_bj values('0702348','产品22','a','f','b','c',null);insert into t_source_bj values('07432408','产品3','a','b','d','c',null);insert into t_source_bj values('0723438','产品0','a','c','b','c',null);;with tas(select 库存编号,名称,零件备注码1 as 零件备注码 from t_source_bjunion select 库存编号,名称,零件备注码2 as 零件备注码 from t_source_bjunion select 库存编号,名称,零件备注码3 as 零件备注码 from t_source_bjunion select 库存编号,名称,零件备注码4 as 零件备注码 from t_source_bj),m as(SELECT *FROM (SELECT DISTINCT 库存编号,名称 FROM t)AOUTER APPLY( SELECT 零件备注码= STUFF(REPLACE(REPLACE( ( SELECT 零件备注码 FROM t N WHERE 库存编号 = A.库存编号 and 名称=A.名称 FOR XML AUTO ), '<N 零件备注码="', ','), '"/>', ''), 1, 1, ''))N)update t_source_bj set 合并项=零件备注码 from m where t_source_bj.库存编号=m.库存编号 and t_source_bj.名称=m.名称select * from t_source_bj/*库存编号 名称 零件备注码1 零件备注码2 零件备注码3 零件备注码4 合并项0704008 产品1 a b b c a,b,c07043255 产品2 a b b c a,b,c0702348 产品22 a f b c a,b,c,f07432408 产品3 a b d c a,b,c,d0723438 产品0 a c b c a,b,c*/
[解决办法]
select [你要的编码] = isnull(( select s+'' from ( select s=零件备注码1 from t_source_bj b where a.库存编号=b.库存编号 union select s=零件备注码2 from t_source_bj b where a.库存编号=b.库存编号 union select s=零件备注码3 from t_source_bj b where a.库存编号=b.库存编号 union select s=零件备注码4 from t_source_bj b where a.库存编号=b.库存编号 ) t for xml path('')) ,''),* from t_source_bj a