各個數(shù)據(jù)庫獲取隨機(jī)列的語法

[html]

各個數(shù)據(jù)庫獲取隨機(jī)列的語法

MySQL

SELECT column FROM table ORDER BY RAND() LIMIT 10

Oracle

SELECT column FROM( SELECT column FROM table ORDER BY dbms_random.value ) WHERE rownum <= 10

PostgreSQL

SELECT column FROM table ORDER BY RANDOM() LIMIT 10

SQL Server

SELECT TOP 10 column FROM table ORDER BY NEWID()

聲明：本網(wǎng)頁內(nèi)容旨在傳播知識，若有侵權(quán)等問題請及時與本網(wǎng)聯(lián)系，我們將在第一時間刪除處理。TEL:177 7030 7066 E-MAIL:11247931@qq.com