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Teradata Parallel Data Pump

Teradata Parallel Data Pump Reference - Teradata Developer ...

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APPENDIX D<br />

User-Defined-Types<br />

and User-Defined-Methods<br />

This appendix provides information on User-Defined-Types (UDTs) and<br />

User-Defined-Methods (UDMs):<br />

• User-Defined-Types and User-Defined-Methods<br />

• User-Defined-Methods (UDMs)<br />

• Creating UDTs with <strong>Teradata</strong> T<strong>Pump</strong><br />

• Inserting and Retrieving UDTs with Client Products<br />

• External Types<br />

• Inserting UDTs with <strong>Teradata</strong> T<strong>Pump</strong><br />

• Retrieving UDTs with <strong>Teradata</strong> T<strong>Pump</strong><br />

• Retrieving UDT Metadata with <strong>Teradata</strong> T<strong>Pump</strong><br />

User-Defined-Types and User-Defined-Methods<br />

This section provides a brief overview of how <strong>Teradata</strong> client products support user-defined<br />

custom data types known as User-Defined Types (UDTs), and user-defined custom functions<br />

known as User-Defined Methods (UDMs).<br />

• User-Defined Types (UDTs)<br />

• User-Defined Methods (UDMs)<br />

For more in depth information on using UDTs and UDMs see Introduction to <strong>Teradata</strong>, B035-<br />

1091, SQL External Routine Programming, B035-1147 and SQL Fundamentals, B035-1141.<br />

User-Defined Types (UDTs)<br />

UDTs can be created to provide representations of real world entities within <strong>Teradata</strong><br />

<strong>Data</strong>base. Choosing a set of UDTs which closely matches the entities encountered in a given<br />

business can yield a system which is easier to understand and hence easier to maintain.<br />

Support for UDTs and UDMs integrates the power of object-oriented technology directly into<br />

<strong>Teradata</strong> <strong>Data</strong>base.<br />

<strong>Teradata</strong> <strong>Parallel</strong> <strong>Data</strong> <strong>Pump</strong> Reference 257

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