问题
I just want to know what is meant by the sign/statement at the beginning of the record.
Screenshot of Table 1 : it has the '*' and the '(new)' word. What is meant by that? https://drive.google.com/file/d/0B1ZF1oqH0s9hemtYX0NpLWhqLWs/view?usp=sharing
Screenshot of Table 2 : this table only has the '*' sign. What is meant by that? https://drive.google.com/file/d/0B1ZF1oqH0s9hd3dKdUhkQXR3VzA/view?usp=sharing
Say I want to make Table 2 become like Table 1, what should I do?
回答1:
The (New) is written in the fields where the value will be auto generated. If you enter the DesignView of a table you can change the data type of the fields in that table. If you set the type to AutoNumber there will be a placeholder displayed when creating new entries.
will result in a display like this:
as opposed to setting it to something different than AutoNumber:
resulting in
The leading * has already been explained in the comments properly: it is an indicator for a new row entry.
To make table2 like table1 you would have to change the field type to AutoNumber - unfortunately that is not possible as far as I can tell since you already have entered data:
Once you enter data in a table, you can't change the data type of any field to AutoNumber, even if you haven't yet added data to that field.
The only way would be to a create a new table with the correct schema and move the data there without specifying the AutoNumber value.
来源：https://stackoverflow.com/questions/31131719/what-does-the-sign-means-to-a-table-in-the-microsoft-access