[Solved] How can you combine OUT parameters with a function returning a TABLE in PostgreSQL? — Ans: Declare OUT parameters and use RETURNS TABLE with matching column names and... | PostgreSQL

PostgreSQL - Advanced PL/pgSQL

How can you combine OUT parameters with a function returning a TABLE in PostgreSQL?

AUse only RETURNS TABLE without OUT parameters.

BDeclare OUT parameters and use RETURNS TABLE with matching column names and types.

CUse OUT parameters but declare RETURNS VOID.

DUse RETURNS SETOF with OUT parameters.

Step-by-Step Solution

Solution:

Step 1: Understand RETURNS TABLE and OUT parameters
RETURNS TABLE is syntactic sugar for multiple OUT parameters with column names and types.
Step 2: Confirm compatibility
Declaring OUT parameters and RETURNS TABLE with matching columns is valid and common.
Final Answer:
Declare OUT parameters and use RETURNS TABLE with matching column names and types. -> Option B
Quick Check:
OUT parameters = RETURNS TABLE equivalent [OK]

Quick Trick: RETURNS TABLE is shorthand for multiple OUT parameters [OK]

Common Mistakes:

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How can you combine OUT parameters with a function returning a TABLE in PostgreSQL?