The Change field AutoNumber type appears in Access and cannot be changed back!

The Change field AutoNumber type appears in Access and cannot be changed back! (Resolved)

Once you have changed the self-added field in access to a numeric value, and then you change back to self-increase, you are prompted: After you have entered data in the table, you cannot change any field data type to AutoNumber errors, and resolve:

1, the first right key table, design, open the field design state.

2, you want to change the self-added field deleted.

3. Add a new field (with the same name as the deleted field) on the last side, and set it to AutoNumber.

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