sql截取逗号分隔的字符串实例

//sql逗号分隔的字符串参数截取操作
 1 create proc  proc_update_userRole
(@IDs nvarchar(2000),@RoleID int)
as
 declare @lloca int
 declare @rloca int
 declare @ID int
 set @lloca=1
 set @rloca=charindex(',',@IDs,@lloca)
 while(@rloca is not null and @rloca<>0)
 begin 
 set @ID= substring(@IDs,@lloca,@rloca-@lloca)
 set @lloca=@rloca+1
 set @rloca=charindex(',',@IDs,@lloca)
 update sys_UserRoles set R_RoleID=@RoleID where R_RoleID in (select RoleID from  egb_OrgUser where AutoID=@ID) and R_UserID in(select UserID from  egb_OrgUser where AutoID=@ID)
 update egb_OrgUser set RoleID=@RoleID where AutoID=@ID
 end 
go