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20. Saving to the database in case of power loss

Every now and then the estimation and the project cost library are saved to the database. But not often. Automatic saving to the database would cause irritating performance problems. To prevent data loss in case of a power failure, you can save to the database manual. 
Just click on the save button and you have saved the most important data to the database.

As you can see. The save button is disabled. This is because nothing has changed since we just started the application.

Make a small adjustment. Change 10 to 11.

As you can see. The save button is now enabled. Click on it.

As you can see the button is disabled again. Change 11 to 10.