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01In an MVCC-based engine, how is an UPDATE statement physically executed at the storage layer?
02What is the primary risk of executing a large UPDATE or DELETE without a WHERE clause in a production environment?
03Why is INSERT INTO ... SELECT more efficient for moving data compared to application-level loops?
04What is the primary cause of 'Write Amplification' during an INSERT operation on a table with many secondary indexes?
05In a high-concurrency environment, how should you perform a balance update to avoid 'Lost Updates' without selecting the value into the application first?