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Hi, within my application I've written code to back up only those tables in my database that have been changed. I'm only using MyISAM tables and I'm not using any cached updates on the TMyQuery or TMyTable components I'm using to make the changes. I've found I've got to close down the programme and restart it for the backup code to work as otherwise the timestamps don't change. In fact, after deleting some records, I had to reboot the machine to update the table timestamps.

I'm aware this may be nothing to do with the MyDAC components but can anyone tell me how to get MySQL to update the timestamps on any changed tables?

MySQL server updates timestamp fields on every record updating.
Please give a more detailed description of the problem.

Sorry Dimon, I mean the windows file timestamp;

This behaviour is connected with the specificity of work of MySQL server and it does not depend on MyDAC.

For anyone that's interested I think 'flush tables' solves the problem.