Oracle查询结果集,随机排序
select * from table1 order by dbms_random.value();
MySQL随机查询出一条记录:
 
-- 下面的查询语句效率高,不要使用 SELECT * FROM table1 ORDER BY rand() LIMIT 1 来查询 SELECT * FROM table1 WHERE id=(SELECT id FROM table1 ORDER BY rand() LIMIT 1)
查询结果集,随机排序
SELECT * FROM table1 ORDER BY rand() 
MS SQL Server
SELECT *
  FROM Northwind Orders 
  ORDER BY NEWID() 
SELECT TOP 10 * 
  FROM Northwind Orders 
  ORDER BY NEWID() 
 
                
                
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