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Datatype Functions

IsBoolean Returns if a string can be interpreted as a localized boolean value.
IsDate Returns if a string can be interpreted as a localized date.
IsFloat Returns if a string can be interpreted as a localized floating point value.
IsInteger Returns if a string can be interpreted as an integer value.
IsLong Returns if a string can be interpreted as a 64-bits integer value.
IsNull Returns if an expression is NULL.
IsNumber Returns if an string can be interpreted as a number, i.e. an Integer, a Long or a Date.
SizeOf Returns the memory used by a specific datatype.
TypeOf Returns the datatype of an expression.

See also