TypeDefinition :: isComplexType - Is data type a complex data type

The function returns true, when the type definition refers to a complex (user-defined) data type. The function can be called in order to check, whether the data type is a complex data type before calling complex data type functions. View definition are complex data types, as well. DATETIME is also considered as complex type, even though it is an elementary data type.

When the type definition does not refer to a complex data types, the function returns false. When calling the function with an invalid type definition, the function throws an exception.