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MS Access Forum / Database Design / October 2006Create an Autonumber column in a table
How do I add an autonumber column to an already existing table? >How do I add an autonumber column to an already existing table? If you want to control the sequential order of the autonumber values, the best solution is to copy your table, *design mode only*, to a new table; add an autonumber field to the (empty) table, in table design view; run an Append query to append all the data; drop all relationships to the old table and build new relationships to the new one. John W. Vinson[MVP] I messed with this table for so long that I'm not even sure what to tell you I came up with, but I know I had too much data. There were almost 1 million lines combined, so I put them into notepad (as scrappy as that sounds) and imported the whole thing at once, letting Access add the primary key upon import. > >How do I add an autonumber column to an already existing table? > [quoted text clipped - 6 lines] > > John W. Vinson[MVP] |
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