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PostgreSQL Functions By Example

OverviewFunction BasicsBy ExamplePostgreSQL Functions By ExampleJoe GroupJanuary 20, 2012 Joe ConwaySCALE10X-PGDayOverviewFunction BasicsBy ExampleIntroductionUsesVarietiesLanguage sWhat are Functions ?Full fledged SQL objectsMany other database objects are implemented with themFundamental part of PostgreSQL s system architectureCreated withCREATE FUNCTIONE xecuted through normal SQLtarget-list:SELECT myfunc(f1) FROM foo;FROM clause:SELECT * FROM myfunc();WHERE clause:SELECT * FROM foo WHERE myfunc(f1) = 42;Joe ConwaySCALE10X-PGDayOverviewFunction BasicsBy ExampleIntroductionUsesVarietiesLanguage sHow are they Used?FunctionsOperatorsData typesIndex methodsCastsTriggersAggregatesJoe ConwaySCALE10X-PGDayOverviewFunction BasicsBy ExampleIntroductionUsesVarietiesLanguage sWhat Forms Can They Take?

Overview Function Basics By Example PostgreSQL Functions By Example Joe Conway joe.conway@credativ.com credativ Group January 20, 2012 Joe Conway SCALE10X-PGDay

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