按照一定规则批量修改表中新增字段的值

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create procedure proc_dept
as
declare @cursor cursor,@id varchar(50),@pid varchar(100)
begin
	set @cursor = cursor
	for
	select deparet_id,parent_deparet_id from dbo.tb_department_tree order by sequence;
	open @cursor
	fetch next from @cursor into @id,@pid;
	while(@@FETCH_STATUS = 0)
	begin
		if(@pid is null) 
		begin
			update tb_department_tree set scope = @id,tlevel = 1,tpath = @id where deparet_id = @id;
		end
		else
		begin 
			update tb_department_tree set tlevel = (select tlevel from tb_department_tree where deparet_id = @pid)+1,tpath = (select tpath from tb_department_tree where deparet_id = @pid)+'-'[emailprotected] where deparet_id = @id;
			update tb_department_tree set scope =(select SUBSTRING(tpath,CHARINDEX('-',tpath,0)) from tb_department_tree where deparet_id = @id) from tb_department_tree where deparet_id = @id;
		end;
		fetch next from @cursor into @id,@pid;
	end;
	close @cursor;
end;

exec proc_dept;

drop procedure proc_dept;

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