Application Express User's Guide > Managing Database Objects w... > Managing Types
Managing Types |
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A type is a user-specified object or collection definition. Oracle Database Express Edition (Oracle Database XE) currently only supports collection definitions. There are two categories of Oracle collections (SQL collections):
Variable-length arrays (VARRAY types)
Nested tables (TABLE types)
VARRAY types are used for one-dimensional arrays, while nested table types are used for single-column tables within an outer table.
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See Also: Oracle Database Concepts and Oracle Database PL/SQL User's Guide and Reference for information about collection types |