intermediateMongoDB — CRUD, Queries & Aggregation Framework
How does MongoDB handle transactions?
MongoDB 4.0+ supports multi-document ACID transactions within a replica set. MongoDB 4.2+ added distributed transactions across shards. Usage: const session = client.startSession(); session.startTransaction(); try { orders.insertOne({...}, {session}); inventory.updateOne({...}, {session}); await session.commitTransaction(); } catch { await session.abortTransaction(); } Transactions have snapshot i
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