[GENERAL] How to return a resultset/table from a sql function?

[Joost Kraaijeveld]

Hi,

Is it possible to return the following (parameterized) qyery from a sql or 
plpsql function, and if so, what is the syntax?

SELECT{         (SELECT COUNT(klantnummer)              FROM abo_klt WHERE 
abonnement = $1),
                (SELECT SUM(aantal_abonnementen)        FROM abo_klt WHERE 
abonnement = $1));




Groeten,

Joost

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