beginnerTransactions — ACID, COMMIT, ROLLBACK, SAVEPOINT
What is the difference between ROLLBACK and ROLLBACK TO SAVEPOINT?
ROLLBACK: undoes ALL changes made in the current transaction since BEGIN. Returns to pre-BEGIN state. Transaction is ended. ROLLBACK TO SAVEPOINT name: undoes changes only SINCE the savepoint was created. The transaction is NOT ended — it remains active and can continue with more statements. The savepoint itself remains (unless RELEASE SAVEPOINT is used). Use case: complex workflows where a sub-st
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