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Access AutoIncrement Fields

Posted on 2002-05-03
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Last Modified: 2010-05-02
Hi guys,

I have a table in Access 97, this table have an Autoincrement field, i need to get the number of the next Increment. E.G. I have 3 rows in my table, so when i put one more row, it´ll receive number 4 in the database. I need the next value before inserting new data to the table, or after i´ve inserted the data.

I need to get from the access this Number, i´ll apreciate any help ;)



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Question by:agamemnon
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7 Comments
 
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Anthony Perkins earned 300 total points
ID: 6988927
Depending on your Cursor Type and Cursor Location (if you are using a recordset to update) this value may not be available directly with Access 97, so you may have to resort to doing something like:

Select Max(ID) + 1 As LastID From Table1

before you update or:

Select Max(ID) + 1 As LastID From Table1

after you update.

This has complications when this database can be hit by multiple users.

Anthony
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Expert Comment

by:Anthony Perkins
ID: 6988930
It is also dependant on the provider.  Are you using the Jet 4.0 provider?


Anthony
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Expert Comment

by:rkot2000
ID: 6988962


HOWTO: Return Record's Autonumber Value Inserted into Access DB (Q221931)

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q221931

HOWTO: Implement Multiuser Custom Counters in Jet 4.0 and ADO 2.1 (Q240317)
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q240317
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Expert Comment

by:RichW
ID: 6988963
Why not run a SQL statement like "Select MAX(autonumberfieldname) FROM TableName" right after you insert the new record?



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Expert Comment

by:RichW
ID: 6988966
Ooops.  Sorry guys.  I didn't read the MAX suggestions already entered.  My bad.
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Author Comment

by:agamemnon
ID: 6991914
Thank you Guys, it´ll help me a lot...

The Max(Field) AFTER the new row was inserted solved my problem...
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Author Comment

by:agamemnon
ID: 6991919
Thank you,

The problem was Solved with your suggestion of using MAX after inserting the row, i Am using ADO and jet4.0 provider :)
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