📊 MySQL
Q. What does mysql_query() return on failure?
  • (A) 0
  • (B) 1
  • (C) -1
  • (D) a non-zero
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✅ Correct Answer: (D) a non-zero

Explanation: This question is about how MySQL tells you if a query failed. Think of it like trying to open a door. Sometimes it opens (success!), and sometimes it doesn't (failure!).

Explanation by: Ram Avtar Sharma
This question is about how MySQL tells you if a query failed. Think of it like trying to open a door. Sometimes it opens (success!), and sometimes it doesn't (failure!).

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