Operators

Arithmetic operators 

+  Addition operator (also concatenates strings)

-  Subtraction operator

*  Multiplication operator

/  Division operator

 ( )    Parentheses (used to group operands in expressions)

=  Assignment  operator

**   Exponentiation operator

Logical Operators

and   Logical conjunction on two expressions

or    Logical disjunction on two expressions

Comparison Operators

<>   Not equal to

==   Equal to

>=   Greater or equal to

<=   Less than or equal to

<    Less than

>    Greater than