Database

db_abort_tx db_begin_tx db_commit_tx db_create_file_storage db_decrypt_t db_encrypt_t DB_FILE_DEFFS DB_FILE_POSIX DB_FILE_STORAGE db_file_storage_config_destroy db_file_storage_config_init DB_FILE_UCFS DB_FILE_WIN32 db_flush_tx db_get_storage_config db_get_timeout db_get_tx_default db_hlock_t DB_NOLOCKING DB_NOLOGGING db_open_file_storage DB_READ_ONLY db_set_timeout db_set_tx_default db_shutdown db_stat_buffer db_stat_bufmgr db_stat_page db_storage_config_destroy db_storage_config_init db_t db_unwatch_table DB_UTF8_NAME db_wait db_watch_table

db_result_t db_begin_tx ( db_t  hdb, db_flags_t  flags   ) Begin a transaction. Parameters: hdb  Database handle flags  Isolation mode: DB_DEFAULT_ISOLATION Default isolation mode. DB_READ_COMMITTED Read committed isolation. DB_REPEATABLE_READ Repeatable read isolation. DB_SERIALIZABLE Serializable isolation. Lock mode: DB_LOCK_DEFAULT Default lock mode. DB_LOCK_SHARED Obtain shared locks when possible. DB_LOCK_EXCLUSIVE Obtain exclusive locks only. Returns: DB_OK when successful. DB_FAIL on failure. On failure, one of the following error codes is set: DB_EINVAL Could be caused by: invalid database handle, invalid flags parameter, invalid lock mode, invalid isolation mode. DB_ETXACTIVE A transaction is already running. Call db_commit_tx or db_abort_tx to finish the previous transaction before starting a new transaction. To continue using the previous transaction, ignore this error. DB_ENOTX No such transcation found. See also: db_commit_tx, db_abort_tx, db_flush_tx, get_db_error, clear_db_error, Error Handling