Basic usage
Benchmark test:
http://qdbm.sourceforge.net/benchmark.pdf
DBA Functions
Table of Contents
- dba_close — Close a DBA database
- dba_delete — Delete DBA entry specified by key
- dba_exists — Check whether key exists
- dba_fetch — Fetch data specified by key
- dba_firstkey — Fetch first key
- dba_handlers — List all the handlers available
- dba_insert — Insert entry
- dba_key_split — Splits a key in string representation into array representation
- dba_list — List all open database files
- dba_nextkey — Fetch next key
- dba_open — Open database
- dba_optimize — Optimize database
- dba_popen — Open database persistently
- dba_replace — Replace or insert entry
- dba_sync — Synchronize database
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User Contributed Notes
DBA Functions
doppelbauer at gmail dot com
14-Oct-2006 09:47
jason
21-Dec-2004 08:33
Don't make the dumb mistake I did, if you copy the first example at the top and modify it for test, the dba_open specifies "n" which will truncate the database that you are pointing to. Make sure you change it to "r" if you just want to read from an existing dbm file.
kevinphpdotnet at stormtide dot ca
17-Mar-2004 12:10
When using db4 on redhat 7.3 you may get signal 11s on the apache child processes. The installation test scripts will report that db4 is working correctly as the cli will not sig 11 out. The solution is to check to see if mod_rewrite is installed with apache, if it is either dereference it from libdb.so.3 or build apache without mod rewrite. Once this is done you will no longer have your child processes dying out and db4 will work. If you do not get a sig 11 after dba_open just ignore this comment.
djm at web dot us dot uu dot net
17-Oct-1999 05:28
With db2, you need to call dba_sync() to get the data written to disk; the examples are missing this. db2 uses
the BTREE file format, not the more common HASH.
BTREE is faster, though, in my tests, so it's a good
choice.