SQL中连接空字符串 SELECT oldid,RTRIM(LTRIM(ISNULL(Name,'') +ISNULL(Specification,''))) FROM [PCMIS].[dbo].[MaterialData] where Specification is null
SQL中连接空字符串 SELECT oldid,RTRIM(LTRIM(ISNULL(Name,'') +ISNULL(Specification,''))) FROM [PCMIS].[dbo].[MaterialData] where Specification is null