Small DBMs: ODBM, NDBM, and SDBM

• These all have the same major drawback:

• The amount of data is limited

• Typically, key size + value size must be less than about 1KB for each key

        use Fcntl 'O_RDWR', 'O_CREAT';
        use SDBM_File;

        tie %h, "SDBM_File", "/tmp/sdbm", O_RDWR|O_CREAT, 0666
            or die $!; 
        $h{ouch} = "-" x 1024; 
        print "ok\n"; 

• Nope:

        sdbm store returned -1, errno 22, key "ouch" at sdbm_fail line 6.

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Copyright © 2003 M. J. Dominus