Data Types

The following are the data types that are available for use via KQL.

Type Description

Type	Description
bool (`boolean`)	`true` (`1`) or `false` (`0`).
datetime (`date`)	An instant in time, typically expressed as a date and time of day.
decimal	A 128-bit wide, decimal number.
dynamic	An array, a property bag, or a value of any of the other scalar data types.
guid (`uuid`, `uniqueid`)	A 128-bit globally unique value.
int	A signed, 32-bit wide, integer.
long	A signed, 64-bit wide, integer.
real (`double`)	A 64-bit wide, double-precision, floating-point number.
string	A sequence of zero or more Unicode characters.
timespan (`time`)	A time interval.

bool (boolean)

true (1) or false (0).

datetime (date)

An instant in time, typically expressed as a date and time of day.

A 128-bit wide, decimal number.

An array, a property bag, or a value of any of the other scalar data types.

guid (uuid, uniqueid)

A 128-bit globally unique value.

A signed, 32-bit wide, integer.