Operators
This document describes the operators precedence, comparison functions and operators, logical operators, and assignment operators.
Name | Description |
---|---|
AND, && | Logical AND |
= | Assign a value (as part of a SET statement, or as part of the SET clause in an UPDATE statement) |
:= | Assign a value |
BETWEEN ... AND ... | Check whether a value is within a range of values |
BINARY | Cast a string to a binary string |
& | Bitwise AND |
~ | Bitwise inversion |
| | Bitwise OR |
^ | Bitwise XOR |
CASE | Case operator |
DIV | Integer division |
/ | Division operator |
= | Equal operator |
<=> | NULL-safe equal to operator |
> | Greater than operator |
>= | Greater than or equal operator |
IS | Test a value against a boolean |
IS NOT | Test a value against a boolean |
IS NOT NULL | NOT NULL value test |
IS NULL | NULL value test |
-> | Return value from JSON column after evaluating path; equivalent to JSON_EXTRACT() |
->> | Return value from JSON column after evaluating path and unquoting the result; equivalent to JSON_UNQUOTE(JSON_EXTRACT()) |
<< | Left shift |
< | Less than operator |
<= | Less than or equal operator |
LIKE | Simple pattern matching |
ILIKE | Simple pattern matching with case insensitive (Supported in TiDB, but not supported in MySQL) |
- | Minus operator |
%, MOD | Modulo operator |
NOT, ! | Negates value |
NOT BETWEEN ... AND ... | Check whether a value is not within a range of values |
!=, <> | Not equal operator |
NOT LIKE | Negation of simple pattern matching |
NOT REGEXP | Negation of REGEXP |
||, OR | Logical OR |
+ | Addition operator |
REGEXP | Pattern matching using regular expressions |
>> | Right shift |
RLIKE | Synonym for REGEXP |
* | Multiplication operator |
- | Change the sign of the argument |
XOR | Logical XOR |
Unsupported operators
Operator precedence
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
-, +
<<, >>
&
|
= (comparison), <=>, >=, >, <=, <, <>, !=, IS, LIKE, REGEXP, IN
BETWEEN, CASE, WHEN, THEN, ELSE
NOT
AND, &&
XOR
OR, ||
= (assignment), :=
For details, see Operator Precedence.
Comparison functions and operators
Name | Description |
---|---|
BETWEEN ... AND ... | Check whether a value is within a range of values |
COALESCE() | Return the first non-NULL argument |
= | Equal operator |
<=> | NULL-safe equal to operator |
> | Greater than operator |
>= | Greater than or equal operator |
GREATEST() | Return the largest argument |
IN() | Check whether a value is within a set of values |
INTERVAL() | Return the index of the argument that is less than the first argument |
IS | Test a value against a boolean |
IS NOT | Test a value against a boolean |
IS NOT NULL | NOT NULL value test |
IS NULL | NULL value test |
ISNULL() | Test whether the argument is NULL |
LEAST() | Return the smallest argument |
< | Less than operator |
<= | Less than or equal operator |
LIKE | Simple pattern matching |
ILIKE | Simple pattern matching with case insensitive (Supported in TiDB, but not supported in MySQL) |
NOT BETWEEN ... AND ... | Check whether a value is not within a range of values |
!=, <> | Not equal operator |
NOT IN() | Check whether a value is not within a set of values |
NOT LIKE | Negation of simple pattern matching |
STRCMP() | Compare two strings |
For details, see Comparison Functions and Operators.
Logical operators
Name | Description |
---|---|
AND, && | Logical AND |
NOT, ! | Negates value |
||, OR | Logical OR |
XOR | Logical XOR |
For details, see MySQL Handling of GROUP BY.
Assignment operators
Name | Description |
---|---|
= | Assign a value (as part of a SET statement, or as part of the SET clause in an UPDATE statement) |
:= | Assign a value |
For details, see Detection of Functional Dependence.
MySQL compatibility
- MySQL does not support the
ILIKE
operator.