Cursor
database
Database Transaction Not Atomic After Changes
After Cursor refactored your database transaction code, operations that should succeed or fail together are now failing partially. Data consistency is compromised.
Transaction wrapping or commit/rollback logic was broken.
Error Messages You Might See
Data inconsistency
Partial transaction applied
Duplicate entries
Inconsistent state
Common Causes
- Removed BEGIN/START TRANSACTION statement
- COMMIT missing, changes never persisted
- ROLLBACK not called on error, partial changes remain
- Mixing transactions with non-transactional queries
- Auto-commit enabled, breaking transaction isolation
How to Fix It
Wrap multi-step operations: BEGIN; query1; query2; COMMIT; or ROLLBACK on error. Use ORM transaction helpers: await sequelize.transaction(async t => { ... }). Always rollback on error. Test with failures injected.
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Get HelpFrequently Asked Questions
What's ACID?
Atomicity (all or nothing), Consistency (valid state), Isolation (concurrent ops don't interfere), Durability (persisted). Transactions guarantee ACID.
How do I handle transaction errors?
Wrap in try/catch. Catch errors rollback transaction. Finally commit if success. ORM abstracts this.