Question

我需要一种通过rand（）选择行的方法，并在MYSQL上的同一查询中更新它我试过这段代码但没有回答：

SET AUTOCOMMIT=0;
BEGIN TRANSACTION;
select * from articles where status = 3 and name IS NOT NULL ORDER BY RAND() limit 0,1;
update articles set status = 4 ;
COMMIT TRANSACTION;

Answer 1

这为我工作：

update articles set `status` = 4 where id in (
  SELECT id FROM  (
    select id from articles where status = 3 and name IS NOT NULL ORDER BY RAND() limit 0,1
  ) tmp
);

MySQL，如何通过rand（）选择并更新同一查询中的列？

1 个答案: