How can you combine RETURN NEXT with a cursor to return rows from a query inside a PostgreSQL function?

hard📝 Application Q9 of 15

PostgreSQL - PL/pgSQL Fundamentals

How can you combine RETURN NEXT with a cursor to return rows from a query inside a PostgreSQL function?

AUse RETURN to return the cursor variable directly.

BUse RETURN NEXT directly with the cursor name without fetching rows.

COpen cursor, FETCH each row, RETURN NEXT row, then CLOSE cursor and RETURN.

DDeclare cursor as RETURNS TABLE and omit RETURN NEXT.

Step-by-Step Solution

Solution:

Step 1: Understand cursor usage
Cursor must be opened and rows fetched one by one.
Step 2: Use RETURN NEXT for each fetched row
Each fetched row is returned with RETURN NEXT inside loop.
Step 3: Close cursor and end function
After fetching all rows, cursor is closed and function ends with RETURN.
Final Answer:
Open cursor, fetch rows, RETURN NEXT each, close cursor, then RETURN -> Option C
Quick Check:
Cursor with RETURN NEXT requires fetch loop = Open cursor, FETCH each row, RETURN NEXT row, then CLOSE cursor and RETURN. [OK]

Quick Trick: Fetch rows from cursor, RETURN NEXT each, then RETURN [OK]

Common Mistakes:

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