我有两个包含内容的mysql表,一个叫做请愿书。yes":"1","no":"0","memberID":"14","timestamp":"2013-11-01 21:26:02"}]}
我需要选择*在petition_response中没有回应的请愿书$result = mysql_query("select * from petition_response w
我想要这个查询:1个随机的(id,word,meaning)和1个随机的不正确的任何其他单词的含义。如何在查询中获得更好的性能?$offset_result = mysql_query("SELECT FLOOR(RAND() * COUNT(*)) AS offset FROM words WHERE APPROVAL=1 AND$_SESSION['statistics']['h'].")");
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