# Berkeley DB: Berkeley DB: Transaction Subsystem and Related Methods
Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,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
--- | ---
DbEnv::txn_checkpoint | Checkpoint the transaction subsystem
DbEnv::txn_recover | Distributed transaction recovery
DbEnv::txn_stat | Return transaction subsystem statistics
Transaction Subsystem Configuration |
DbEnv::set_timeout | Set lock and transaction timeout
DbEnv::set_tx_max | Set maximum number of transactions
DbEnv::set_tx_timestamp | Set recovery timestamp
Transaction Operations |
DbEnv::txn_begin | Begin a transaction
DbTxn | Transaction object
DbTxn::abort | Abort a transaction
DbTxn::commit | Commit a transaction
DbTxn::discard | Discard a prepared but not resolved transaction handle
DbTxn::id | Return a transaction's ID
DbTxn::prepare | Prepare a transaction for commit
DbTxn::set_timeout | Set transaction timeout

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