摘要:
TList-结构-指针 pListData = ^TListData; TListData = record aID : Integer; aStr : String; aBool : Boolean; end; mmList := TList.Create; for I := 0 to 2 do 阅读全文
摘要:
查询及删除重复记录的方法 1、查找表中多余的重复记录,重复记录是根据单个字段(peopleId)来判断 select * from people where peopleId in (select peopleId from people group by peopleId having count 阅读全文