In MySQL, a zero number equals any string
2016-10-29 19:57
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最近在做项目的过程中发现了一个问题数据库表 test 有个字段是 target_id int(11),这个字段可能为零使用如下查询select * from test where target_id = '';
select * from test where target_id = 'abcd';这样，所有target_id = 0 的结果都会出来，为什么？查阅资料，这是类型转化导致的，在m
select * from test where target_id = 'abcd';这样，所有target_id = 0 的结果都会出来，为什么？查阅资料，这是类型转化导致的，在m
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