How can I return multiple rows of records in PL pgSQL
CREATE OR REPLACE FUNCTION validation RETURNS RECORD AS DECLARE rec RECORD temp row RECORD BEGIN CREATE TEMPORARY TABLE temp table col1 TEXT col2 INTEGER col3 BOOLEAN ON COMMIT DROP FOR temp row IN SELECT FROM staging validation LOOP RAISE NOTICE sql temp row sql EXECUTE format INSERT INTO temp table s temp
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
PL pgSQL Function Parameter Modes IN OUT and INOUT PostgreSQL Tutorial
The out parameters are very useful in functions that need to return multiple values Note that PostgreSQL has supported the out parameters since version 8 1 To define out parameters you explicitly precede the parameter name with the out keyword as follows out parameter name type
PostgreSQL Documentation 16 9 25 Set Returning Functions, This section describes functions that possibly return more than one row The most widely used functions in this class are series generating functions as detailed in Table 9 65 and Table 9 66 Other more specialized set returning functions are described elsewhere in this manual
PostgreSQL Documentation 16 CREATE FUNCTION
PostgreSQL Documentation 16 CREATE FUNCTION, If the function is not supposed to return a value specify void as the return type When there are OUT or INOUT parameters the RETURNS clause can be omitted If present it must agree with the result type implied by the output parameters RECORD if there are multiple output parameters or the same type as the single output parameter
Javascript Function Return Multiple Values with Examples
6 4 Returning Data from Modified Rows PostgreSQL
6 4 Returning Data from Modified Rows PostgreSQL Use of RETURNING avoids performing an extra database query to collect the data and is especially valuable when it would otherwise be difficult to identify the modified rows reliably The allowed contents of a RETURNING clause are the same as a SELECT command s output list see Section 7 3
How To Return Two Values From A Function In Javascript Update New
Be warned that the RETURNS TABLE construct is only available for PostgreSQL 8 4 while the OUT approach has existed since PostgreSQL 8 1 With that said if you need your code to work on 8 3 or lower you can t use RETURNS TABLE When in doubt about a feature and you are creating code that needs to support earlier versions of PostgreSQL as we Using RETURNS TABLE vs OUT parameters Postgres OnLine. If you call a procedure that returns multiple result sets in PSQL tool pgAdmin Query tool or another function the query returns cursor names SELECT show cities multiple The result show cities multiple refcursor unnamed portal 3 unnamed portal 4 So to fetch data you can use a separate FETCH statements for each cursor Alternatively an SQL function can be declared to return a set that is multiple rows by specifying the function s return type as SETOF sometype or equivalently by declaring it as RETURNS TABLE columns In this case all rows of the last query s result are returned Further details appear below
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