要筛选一个字段中符合条件的几种值应该怎么查询?
是这样查询吗 select * from table where cateid=2 or cateid=4 or cateid=8 有没有其它方法..
我现在得到一个字符中cateid="2,4,8," 有什么简便的方法把符合条件的值给取出来呢,cateid的值长度不固定,有可能是cateid="2,4,8,23,44," 也有可能是cateid="2,"
谢谢........
------解决方案--------------------
select * from table where cateid in(2,4,8)
------解决方案--------------------
用in条件查询,但是条件的最后面的(,逗号)要去掉
------解决方案--------------------
- SQL code
select * from table where cate_id in (2,4,8)<br><font color="#e78608">------解决方案--------------------</font><br>还是用or效率应该更高一些吧,用in写起来更容易一些<br>
- PHP code
$a=explode(',',"2,4,8,23,44,");$w = array();foreach($a as $s){ if(intval($s)) $w[]='cate_id='.intval($s);}if(count($w)) echo "select * from table where ".implode(' or ',$w);<div class="clear"> </div>

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