Loss of the primary key when the database backup or export

xiaoxiao2021-03-06  44

1. Export Access is not the primary key information. So the import also has no primary key information.

2. Method with backup recovery cannot be lost, unless you have less than your database.

3. Methods of direct directive data with SQL should be selected "copy objects and data between two SQL Server databases", and in the next option, "include extended properties" is selected.

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