Informix DB는 order by 에서 랜덤으로 정렬할수 있는 방법 없나요?
다른 DB는
SELECT column FROM table ORDER BY RAND() LIMIT 1
PostgreSQL:
SELECT column FROM table ORDER BY RANDOM() LIMIT 1
Microsoft SQL Server:
SELECT TOP 1 column FROM table ORDER BY NEWID()
IBM DB2:
SELECT column FROM table ORDER BY RAND() FETCH FIRST 1 ROWS ONLY
Oracle:
SELECT column FROM ( SELECT column FROM table ORDER BY dbms_random.value ) WHERE rownum = 1
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