# Berkeley DB: Berkeley DB: Transaction Subsystem and Related Methods
Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++

### Berkeley DB: Transaction Subsystem and Related Methods

Transaction Subsystem and Related Methods | Description
--- | ---
DB_ENV->set_tx_max | Set maximum number of transactions
DB_ENV->set_tx_timestamp | Set recovery timestamp
DB_ENV->txn_checkpoint | Checkpoint the transaction subsystem
DB_ENV->txn_recover | Distributed transaction recovery
DB_ENV->txn_stat | Return transaction subsystem statistics
DB_ENV->txn_begin | Begin a transaction
DB_TXN->abort | Abort a transaction
DB_TXN->commit | Commit a transaction
DB_TXN->discard | Discard a prepared but not resolved transaction handle
DB_TXN->id | Return a transaction's ID
DB_TXN->prepare | Prepare a transaction for commit
DB_TXN->set_timeout | Set transaction timeout

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