carbon dating explanation for kids - Access 2016 updating tables
You cannot undo the results of an update query, and making a backup helps make sure that you can reverse your changes if you change your mind.
When you need to update data from one table to another, consider the following rule: the data types for the source and destination fields must either match or be compatible.
Once the process has been completed, you can build interfaces and queries to the linked tables just as you would for any Access database.
Use the following procedure to view links or to refresh them when the structures of the linked tables have changed.
You cannot use an update query to add new records to a database, or to delete records from a database.