```{index} single: DBM_Filter::compress ``` # DBM_Filter::compress DBM\_Filter::compress - filter for DBM\_Filter ## SYNOPSIS ```perl use SDBM_File; # or DB_File, GDBM_File, NDBM_File, ODBM_File use DBM_Filter ; $db = tie %hash, ... $db->Filter_Push('compress'); ``` ## DESCRIPTION This DBM filter will compress all data before it is written to the database and uncompressed it on reading. A fatal error will be thrown if the Compress::Zlib module is not available. ## SEE ALSO [DBM\_Filter](../DBM_Filter.md), [perldbmfilter](https://perldoc.perl.org/perldbmfilter), [Compress::Zlib](../Compress/Zlib.md) ## AUTHOR Paul Marquess pmqs@cpan.org