Postgresql Function Return Setof Example

Return SETOF rows from PostgreSQL function Stack Overflow

Refactor a PL pgSQL function to return the output of various SELECT queries PL pgSQL in the Postgres manual Then there are more advanced options with polymorphic types which allow you to pass the return type at call time More in the last chapter of Refactor a PL pgSQL function to return the output of various SELECT queries

Return more than one row of data from PL pgSQL functions, It returns a rowset of rows defined by the type holder int int8 The rows that it returns are defined by the group by query in its body The PL pgSQL function is a little more complicated but let s go through it The function starts off by declaring a variable r to be of the rowtype holder This variable will be used to store the rows

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How to return result of a SELECT inside a function in PostgreSQL

Yes better to use pure SQL whenever you can You can use two or more commands SELECT s INSERTS etc only the last one is the return value A workaround for procedural dependent step by step is to use a chain of clauses in a WITH For example WITH t1 as SELECT etc1 t2 as SELECT etc2 from t1 SELECT result FROM t2

38 5 Query Language SQL Functions PostgreSQL, 38 5 9 SQL Functions Returning Sets When an SQL function is declared as returning SETOF sometype the function s final query is executed to completion and each row it outputs is returned as an element of the result set This feature is normally used when calling the function in the FROM clause

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Simple PostgreSQL function to return rows Stack Overflow

Simple PostgreSQL function to return rows Stack Overflow, The issue is create function x returns setof y returns a paren d comma separated row values which can t be used without further processing The function returns a row To decompose into individual columns call it with SELECT FROM getcustomers That s assuming the function defines a proper return type See

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PostgreSQL Reviews G2 Crowd

SQL function return type TABLE vs SETOF records

SQL function return type TABLE vs SETOF records 18 This answer is only to remember alternative context where TABLE and SETOF are equivalent As a horse with no name pointed it is not a RETURNS SETOF unknown record is a defined one In this example the types table and setof are equivalent CREATE TYPE footype AS score int term text CREATE FUNCTION foo RETURNS SETOF footype AS

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JSON Datatype In PostgreSQL Data Virtuality

PostgreSQL INNER JOIN

RETURNS SETOF row type This allows to return a set of rows 0 1 or many But that s not in your ion To get individual columns instead of a record representation call the function with SELECT FROM sql with columns There are lots of examples here on SO try a search maybe with additional key words Postgresql Returning result set from Postgres functions Stack Overflow. The function needs to return a SETOF RECORD instead of RECORD and have one RETURN NEXT per row instead of a single RETURN as in CREATE FUNCTION test RETURNS SETOF RECORD AS DECLARE rec record BEGIN select 1 2 into rec return next rec select 3 4 into rec return next rec END language plpgsql Function Description normal rand numvals integer mean float8 stddev float8 setof float8 Produces a set of normally distributed random values crosstab sql text setof record Produces a pivot table containing row names plus N value columns where N is determined by the row type specified in the calling query crosstabN sql text setof table crosstab N

postgresql-inner-join

PostgreSQL INNER JOIN

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