SQL Server SQL字符串拼接

DECLARE @STR VARCHAR(8000) set @STR=char(39)

SELECT @STR = ISNULL(@STR,'')+Flowdirection+char(39)+','+char(39) FROM W_inf_IQCDepartmentSet_Details 

SELECT @STR SELECT SUBSTRING(@STR,0,len(@STR)-1)

--拼接字符串 单引号用 char(39)   char(37)代替%