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PostgreSQL Reference Manual - Volume 2 - Programming Guide
by The PostgreSQL Global Development Group
Paperback (6"x9"), 408 pages
ISBN 0954612035
RRP £19.95 ($34.95)

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9 PL/pgSQL - SQL Procedural Language

PL/pgSQL is a loadable procedural language for the PostgreSQL database system. The design goals of PL/pgSQL were to create a loadable procedural language that

Except for input/output conversion and calculation functions for user-defined types, anything that can be defined in C language functions can also be done with PL/pgSQL. For example, it is possible to create complex conditional computation functions and later use them to define operators or use them in index expressions.

ISBN 0954612035PostgreSQL Reference Manual - Volume 2 - Programming GuideSee the print edition