[Solved] Examine the following cursor code snippet:DECLARE cur CURSOR FOR SELECT id FROM products;FETCH NEXT FROM cur INTO @prod_id;OPEN cur;CLOSE cur;DEALLOCATE cur;What is the error in this code? | SQL

SQL - Stored Procedures and Functions

Examine the following cursor code snippet:

DECLARE cur CURSOR FOR SELECT id FROM products;
FETCH NEXT FROM cur INTO @prod_id;
OPEN cur;
CLOSE cur;
DEALLOCATE cur;

What is the error in this code?

ACursor is not declared properly

BFETCH NEXT is called before OPENing the cursor

CDEALLOCATE should come before CLOSE

DMissing FETCH PRIOR statement

Step-by-Step Solution

Solution:

Step 1: Review cursor lifecycle
A cursor must be OPENed before FETCH operations.
Step 2: Identify the sequence error
FETCH NEXT is called before OPEN cur, which is invalid.
Final Answer:
FETCH NEXT is called before OPENing the cursor -> Option B
Quick Check:
Always OPEN cursor before FETCH [OK]

Quick Trick: OPEN cursor before FETCH [OK]

Common Mistakes:

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