Multiple choice technology databases

When you open a cursor, DB2 will always get all rows that meet the selection criteria and create a result set?

  1. Yes

  2. No

  3. It Depends

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

DB2 does not necessarily fetch all rows when opening a cursor. The behavior depends on cursor type and optimization - with a declared cursor, rows may be fetched one at a time as needed (FETCH operations), not all at once. The result set is materialized progressively, not entirely at cursor open time. This approach improves performance and reduces memory usage for large result sets.

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