[親測]數據庫優化

一. 準備數據 生成一千萬條測試數據(約耗時3-10分鐘) create table t_user as select rownum as id, to_char(sysdate + rownum/24/3600, 'yyyy-mm-dd hh24:mi:ss') as birthday, trunc(dbms_random.value(0, 100)) as

>>阅读原文<<