Documentation

SQL comparison operators

Comparison operators evaluate the relationship between the left and right operands and returns true or false.

OperatorMeaning
=Equal to
<>Not equal to
!=Not equal to
>Greater than
>=Greater than or equal to
<Less than
<=Less than or equal to
~Matches a regular expression
~*Matches a regular expression (case-insensitive)
!~Does not match a regular expression
!~*Does not match a regular expression (case-insensitive)

=

The = operator compares the left and right operands and, if equal, returns true. Otherwise returns false.

SELECT 123 = 123
Int64(123) = Int64(123)
true

!=, <>

The != and <> operators compare the left and right operands and, if not equal, returns true. Otherwise returns false.

SELECT 123 != 456
Int64(123) != Int64(456)
true
SELECT 123 <> 456
Int64(123) != Int64(456)
true

>

The > operator compares the left and right operands and, if the left operand is greater than the right operand, returns true. Otherwise returns false.

SELECT 3 > 2
Int64(3) > Int64(2)
true

>=

The >= operator compares the left and right operands and, if the left operand is greater than or equal to the right operand, returns true. Otherwise returns false.

SELECT 3 >= 2
Int64(3) >= Int64(2)
true

<

The < operator compares the left and right operands and, if the left operand is less than the right operand, returns true. Otherwise returns false.

SELECT 1 < 2
Int641(1) < Int64(2)
true

<=

The <= operator compares the left and right operands and, if the left operand is less than or equal to the right operand, returns true. Otherwise returns false.

SELECT 1 <= 2
Int641(1) <= Int64(2)
true

~

The ~ operator compares the left string operand to the right regular expression operand and, if it matches (case-sensitive), returns true. Otherwise returns false.

SELECT 'abc' ~ 'a.*'
Utf8(“abc”) ~ Utf8(“a.*”)
true

~*

The ~* operator compares the left string operand to the right regular expression operand and, if it matches (case-insensitive), returns true. Otherwise returns false.

SELECT 'Abc' ~* 'A.*'
Utf8(“Abc”) ~* Utf8(“A.*”)
true

!~

The !~ operator compares the left string operand to the right regular expression operand and, if it does not match (case-sensitive), returns true. Otherwise returns false.

SELECT 'abc' !~ 'd.*'
Utf8(“abc”) !~ Utf8(“d.*”)
true

!~*

The !~* operator compares the left string operand to the right regular expression operand and, if it does not match (case-insensitive), returns true. Otherwise returns false.

SELECT 'Abc' !~* 'a.*'
Utf8(“Abc”) !~* Utf8(“a.*”)
false

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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following:

InfluxDB Cloud Serverless