Datatype Attribute

13.19 Datatype Attribute

The data type attribute of an ADT element.

A datatype allows you to declare the data type of record variables fields, constants, functions return value, collection variables and collection types elements.

Record Variable Declaration
Constant Declaration
Function Declaration and Definition
Collection Variable Declaration
CREATE FUNCTION Statement
CREATE TYPE Statement

Topics

Syntax
Semantics
Related Topics

Syntax

datatype ::=

Description of the illustration datatype.eps

(rowtype_attribute ::=, type_attribute ::=)

Semantics

datatype

collection_type

Name of a user-defined varray or nested table type (not the name of an associative array type).

object_type

Instance of a user-defined type.

record_type

Name of a user-defined type that was defined with the data type specifier RECORD.

ref_cursor_type

Name of a user-defined type that was defined with the data type specifier REF CURSOR.

scalar_datatype

Name of a scalar data type, including any qualifiers for size, precision, and character or byte semantics.