下面小编就为大家带来一篇用mysql 查询奇偶数的实例代码。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧
1：查找id为奇数的行
引用
mysql> select * from forum_dummy where id&1 ; +----+-----------+------------+ | id | user_name | dummy_name | +----+-----------+------------+ | 1 | yang | ting | | 3 | yang3 | ting3 | +----+-----------+------------+ 2 rows in set (0.00 sec)
2：查找id为偶数的行
引用
mysql> select * from forum_dummy where id=(id>>1)<p><span style="font-family:'hiragino sans gb w3','hiragino sans gb',arial,helvetica,simsun,u5b8bu4f53; font-size:16px; line-height:28px">3：conv 函数：二进制，八进制，十六进制，十进制之间的转换</span><br><span style="font-family:'hiragino sans gb w3','hiragino sans gb',arial,helvetica,simsun,u5b8bu4f53; font-size:16px; line-height:28px">1）二进制--》十进制</span><br><span style="font-family:'hiragino sans gb w3','hiragino sans gb',arial,helvetica,simsun,u5b8bu4f53; font-size:16px; line-height:28px">引用</span><br><span style="font-family:'hiragino sans gb w3','hiragino sans gb',arial,helvetica,simsun,u5b8bu4f53; font-size:16px; line-height:28px"></span></p><pre class="brush:sql;toolbar:false">mysql> select conv(101010,2,10); +-------------------+ | conv(101010,2,10) | +-------------------+ | 42 | +-------------------+ 1 row in set (0.00 sec) 2）十进制--》十六进制 引用 mysql> select conv(999,10,16); +-----------------+ | conv(999,10,16) | +-----------------+ | 3E7 | +-----------------+ 1 row in set (0.00 sec)
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