[Solved] What is the problem with this DO block?DO $ BEGIN PERFORM 10 / 0; END $ LANGUAGE plpgsql; — Ans: Division by zero error at runtime | PostgreSQL

PostgreSQL - PL/pgSQL Fundamentals

What is the problem with this DO block?

DO $$
BEGIN
  PERFORM 10 / 0;
END
$$ LANGUAGE plpgsql;

AMissing LANGUAGE specification

BSyntax error due to missing DECLARE section

CDivision by zero error at runtime

DPERFORM cannot be used inside DO blocks

Step-by-Step Solution

Solution:

Step 1: Analyze the code
The expression 10 / 0 causes a division by zero error during execution.
Step 2: Check syntax
LANGUAGE plpgsql is specified correctly; DECLARE is optional here.
Step 3: Confirm PERFORM usage
PERFORM is valid inside DO blocks to execute expressions without returning results.
Final Answer:
Division by zero error at runtime -> Option C
Quick Check:
Division by zero causes runtime error [OK]

Quick Trick: Division by zero causes runtime error [OK]

Common Mistakes:

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What is the problem with this DO block?