Operators
enable you to define the circumstances in which a condition is
deemed to be true. The operators available depend on the data
type being operated upon, so only the appropriate operators will be
available. For example, a logical condition can only be true or
false, so it cannot be greater than anything making the greater
than operator inappropriate for that data type.
The table
below shows a list of operators and the data with which they can be
used:
Operator
|
Types
of data
|
Description
|
String
|
Numerical
|
Date
|
Logic
|
Expression
|
equal
to
|
|
|
|
|
|
If the
first value is equal to the second, then the condition is
true.
|
not equal
to
|
|
|
|
|
|
If the
first value is not equal to the second, then the condition is
true.
|
between
|
|
|
|
|
|
If the
first value is in the range, then the condition is true.
|
not
between
|
|
|
|
|
|
If the
first value is not in the range, then the condition is true.
|
greater
than
|
|
|
|
|
|
If the
first value is greater then the second value, then the condition is
true.
|
greater
than or equal to
|
|
|
|
|
|
If the
first value is greater then the second value of equal to the second
value, then the condition is true.
|
less
than
|
|
|
|
|
|
If the
first value is less then the second value, then the condition is
true.
|
less then
or equal to
|
|
|
|
|
|
If the
first value is less then the second value or equal to the second
value, then the condition is true.
|
containing
|
|
|
|
|
|
If the
first value contains the second value, then the condition is true.
This operator is used only for strings.
|
not
containing
|
|
|
|
|
|
If the
first value does not contain the second value, then the condition
is true. This operator is used only for strings.
|
beginning
with
|
|
|
|
|
|
If the
first value starts with the second value, then the condition is
true. This operatior is used only for strings.
|
ending
with
|
|
|
|
|
|
If the
first value ends with the second value, then the condition is true.
This operator is used only for strings.
|
|