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
 2 (@IDs nvarchar(2000),@RoleID int)
 3 as
 4  declare @lloca int
 5  declare @rloca int
 6  declare @ID int
 7  set @lloca=1
 8  set @rloca=charindex(',',@IDs,@lloca)
 9  while(@rloca is not null and @rloca<>0)
10  begin 
11  set @ID= substring(@IDs,@lloca,@rloca-@lloca)
12  set @lloca=@rloca+1
13  set @rloca=charindex(',',@IDs,@lloca)
14  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)
15  update egb_OrgUser set RoleID=@RoleID where AutoID=@ID
16  end 
17 go