鉴于查询'SELECT foo FROM bar WHERE a = x AND b = y OR c = z',它如何解析此查询？
'SELECT foo FROM bar WHERE a = x AND b = y OR c = z'
(a = x AND b = y) OR c = z？ a = x AND (b = y OR c = z)？
(a = x AND b = y) OR c = z
a = x AND (b = y OR c = z)
这是一个简单的例子,但是如果你正在混合和匹配AND/OR甚至更多的搜索条件呢？
mysql
mysql ×1