[Solved] What will be the output when executing this DO block?DO $ BEGIN RAISE NOTICE 'Total: %', 10 * 2; END $ LANGUAGE plpgsql; | PostgreSQL

PostgreSQL - PL/pgSQL Fundamentals

What will be the output when executing this DO block?

DO $$
BEGIN
  RAISE NOTICE 'Total: %', 10 * 2;
END
$$ LANGUAGE plpgsql;

ANo output

BERROR: syntax error near '*'

CNOTICE: Total: % 10 * 2

DNOTICE: Total: 20

Step-by-Step Solution

Solution:

Step 1: Understand RAISE NOTICE
The RAISE NOTICE statement outputs a message to the client with formatted placeholders.
Step 2: Evaluate the expression
10 * 2 evaluates to 20, so the message will be 'Total: 20'.
Step 3: Confirm syntax
The syntax is correct with LANGUAGE plpgsql specified.
Final Answer:
NOTICE: Total: 20 -> Option D
Quick Check:
RAISE NOTICE formats output with % placeholders [OK]

Quick Trick: RAISE NOTICE outputs formatted messages [OK]

Common Mistakes:

Master "PL/pgSQL Fundamentals" in PostgreSQL

9 interactive learning modes - each teaches the same concept differently

What will be the output when executing this DO block?