Oracle、MySQL和SQL Serve分頁查詢的語句區別
★先來定義分頁語句將要用到的幾個參數:
int currentPage ; //當前頁
int pageRecord ; //每頁顯示記錄數
以之前的ADDRESSBOOK資料表為例(每頁顯示10條記錄):
一、SqlServe下載 分頁語句
String sql = "select top "+pageRecord +" * from addressbook where id not in (select top "+(currentPage-1)*pageRecord +" id from t_user)";
// (currentPage-1)*pageRecord : 是指從第幾個記錄開始
第二頁SQL示範:
select top 20 * from addressbook where id not in (select top 10 id from addressbook)
二、MySQL資料庫分頁語句
String sql = "select * from addressbook where limit "+(currentPage-1)*pageRecord +","+pageRecord +"";
//select * from 表名 【條件】limit M,N;
//M為從第幾個記錄開始,比如每頁顯示3條記錄,第二頁就必須從第4條記錄開始
//N每頁讀幾個資料
第二頁SQL示範:
select * from addressbook where limit 10,10
三、Oracle資料庫分頁語句
String sqls = "select * from ( select rownum rn,t.* from addressbook t where rownum <= "+currentPage*pageRecord+" ) where rownum > "+(currentPage -1)*pageRecord;
第二頁SQL示範:
select * from ( select rownum rn,t.* from addressbook where rownum<= 20 ) where rownum > 10
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