These functions allow you to store records stored in a dbm-style database. This type of database (supported by the Berkeley DB, GDBM, and some system libraries, as well as a built-in flatfile library) stores key/value pairs (as opposed to the full-blown records supported by relational databases). Example 1. DBM example $dbm = dbmopen ("lastseen", "w"); if (dbmexists ($dbm,