| Berkeley DB Key/Data Pairs: DBT Structure | Description | 
|---|
| data | Byte string value | 
| dlen | Partial record length | 
| doff | Partial record offset | 
| size | The length of DBT:data | 
| ulen | Application buffer length | 
| Berkeley DB Environment: DB_ENV Structure | Description | 
|---|
| db_errcall | Additional error information | 
| db_errfile | Additional error information | 
| db_errpfx | Additional error information | 
| db_verbose | Informational and debugging messages | 
| lg_max | Maximum single log file size | 
| lk_conflicts | Lock modes | 
| lk_detect | Deadlock detector configuration | 
| lk_max | Number of locks in the table | 
| lk_modes | Lock modes in the table | 
| mp_mmapsize | Set the maximum mapped file size | 
| mp_size | Size of the memory pool | 
| tx_info | Return from txn_open | 
| tx_max | Maximum simultaneous transactions | 
| tx_recover | Transaction abort function | 
| type | The type of the underlying access method | 
| Berkeley DB Access Methods: DB_INFO Structure | Description | 
|---|
| bt_compare | Btree Access Method: key comparison function | 
| bt_minkey | Btree Access Method: minimum keys per page | 
| bt_prefix | Btree Access Method: prefix comparison function | 
| db_cachesize | Suggested cache size | 
| db_lorder | Underlying database byte order | 
| db_malloc | Returned memory allocation function | 
| db_pagesize | Underlying database page size | 
| dup_compare | Duplicate record comparison function | 
| h_ffactor | Hash Access Method: desired density within the hash table | 
| h_hash | Hash Access Method: key hash function | 
| h_nelem | Hash Access Method: estimated table size | 
| re_delim | Recno Access Method: variable-length record delimitor | 
| re_len | Recno Access Method: fixed-length record length | 
| re_pad | Recno Access Method: fixed-length record pad byte | 
| re_source | Recno Access Method: backing source file | 
| Berkeley DB Locking Subsystem: lockop_t Structure | Description | 
|---|
| lock | Lock reference | 
| mode | Lock mode | 
| obj | Object to be locked | 
| op | Lock operation to be performed | 
| Berkeley DB Shared Memory Buffer Pool: Structures | Description | 
|---|
| clear_len | Bytes to clear during page creation | 
| fileid | Unique identifier for the file | 
| ftype | File type | 
| lsn_offset | Byte offset of the page LSN | 
| pgcookie | Pgin/pgout function cookie |