+
+Values inside primary keys are handled differently in the various MySQL
+versions, see link="https://bugs.gentoo.org/108502">bug #108502
+for some implications, it's higly recommended to scan your tables for values
+of "0" (zero) or less and move them to a value greater or equal than "1".
+
+
One of the most important tasks that every database administrator has to
perform is backing up data. Here we go: