摘要:
查询用户ID为1的所有子用户: select id, name, parent from (select * from tablename order by parent, id) tablename, (select @pv := '1') initialisation where find_in 阅读全文
摘要:
.NET Framework:4.5 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System. 阅读全文