MySQL运算符优先级顺序

运算符优先级顺序 
最高优先级 := 
1 ||, or, xor 
2 &&, and 
3 between, case, when, then, else 
4 =, <=>, >=, >, <=, <, <>, !=, is, like, regexp, in 
5 | 
6 & 
7 <<, >> 
8 -, + 
9 *, /, div, %, mod 
10 ^ 
11 - (unary minus), ~ (unary bit inversion) 
12 !, not 
最低优先级 binary, collate