PostgreSQL - PL/pgSQL FundamentalsHow can you modify a DO block to catch and handle exceptions during execution?AUse BEGIN ... EXCEPTION ... END block inside the DO blockBAdd TRY ... CATCH keywords around the codeCUse IF ... ELSE to check for errorsDExceptions cannot be handled in DO blocksCheck Answer
Step-by-Step SolutionSolution:Step 1: Recall exception handling in PL/pgSQLPL/pgSQL uses BEGIN ... EXCEPTION ... END to handle errors.Step 2: Eliminate invalid optionsTRY ... CATCH is not valid in PostgreSQL; IF ... ELSE is for conditions, not exceptions; exceptions can be handled.Final Answer:Use BEGIN ... EXCEPTION ... END block inside the DO block -> Option AQuick Check:Exception handling = BEGIN ... EXCEPTION ... END [OK]Quick Trick: Use EXCEPTION block inside DO for error handling [OK]Common Mistakes:Using TRY ... CATCH syntax from other languagesThinking exceptions cannot be caughtUsing IF ... ELSE for exceptions
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More PostgreSQL Quizzes Advanced PL/pgSQL - VARIADIC parameters - Quiz 8hard Advanced PL/pgSQL - Dynamic SQL with EXECUTE - Quiz 8hard Indexing Strategies - Partial indexes with WHERE clause - Quiz 2easy PL/pgSQL Fundamentals - LOOP, WHILE, FOR iterations - Quiz 9hard PL/pgSQL Fundamentals - IF-ELSIF-ELSE control flow - Quiz 10hard Performance Tuning - EXPLAIN ANALYZE for actual execution - Quiz 2easy Performance Tuning - Join algorithms (nested loop, hash, merge) - Quiz 5medium Table Partitioning - Creating partitioned tables - Quiz 4medium Table Partitioning - Partition types (range, list, hash) - Quiz 9hard Transactions and Concurrency - Transaction isolation levels - Quiz 5medium