摘要:
SELECT `id` FROM `topic` WHERE `id` IN ('444','512','447','509','504','445','511') ORDER BY FIELD(id,444,512,447,509,504,445,511) SELECT `id` FROM `to 阅读全文
摘要:
MySQL 4.1中新增了FOUND_ROWS()函数,关于这个函数的说明如下:For a SELECT with a LIMIT clause, the number of rows that would be returned were there no LIMIT clauseA SELECT statement may include a LIMIT clause to restrict the number of rows the server returns to the client. In some cases, it is desirable to know how many 阅读全文