SQL Overhead?

Ok what does it mean when you get overhead in a table? Cause now for some reason im getting overhead alot. Is my SQL running out of space? or what?

can you post error message here?


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Well it's not really an err0r message it's an overage in the table itself, here is a screenie of what im talking about.

try to optimize your table with OPTIMIZE command.













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I did that but not even 10min later I have overhead again, this is happening in more then one table, so what I was wondering is why this is happening? and How do I keep it from continuing?
Is this an auto increment issue maybe? It seems that the database is restricting me somehow or maybe something is not set right in the mysql setting's somewhere?