Operator precedences are shown in the following list, from highest precedence to the lowest. Operators that are shown together on a line have the same precedence.

INTERVAL
BINARY, COLLATE
!
- (unary minus), ~ (unary bit inversion)
^
*, /, DIV, %, MOD
-, +
<<, >>
&
|
=, <=>, >=, >, <=, <, <>, !=, IS, LIKE, REGEXP, IN
BETWEEN, CASE, WHEN, THEN, ELSE
NOT
&&, AND
XOR
||, OR
:=

The || operator has a precedence between ^ and the unary operators if the PIPES_AS_CONCAT SQL mode is enabled.

The precedence shown for NOT is as of MySQL 5.0.2. For earlier versions, or from 5.0.2 on if the HIGH_NOT_PRECEDENCE SQL mode is enabled, the precedence of NOT is the same as that of the ! operator. See Section 5.1.7, “Server SQL Modes”.

The precedence of operators determines the order of evaluation of terms in an expression. To override this order and group terms explicitly, use parentheses. For example:

mysql> SELECT 1+2*3;
        -> 7
mysql> SELECT (1+2)*3;
        -> 9