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Set beginning # in AutoIncrField.

Posted on 1998-09-28
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Last Modified: 2013-12-25
Can one set the beginning numer in a AutoIncrField?  Say, I would like to start counting at 1000.
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Question by:RUSTY
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6 Comments
 
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Expert Comment

by:mcix
ID: 1496470
If you are referring to Access, this article should help:

http://support.microsoft.com/support/kb/articles/q94/8/21.asp
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Expert Comment

by:trillian30
ID: 1496471
If you are using ms-sql 6.5, use the seed property to set the initial value:

IDENTITY[(seed, increment)]
Generates incremental values for new rows based on the seed and increment parameters. If used, the seed value will be assigned to the first row in the table and each subsequent row will receive the next identity value, equal to the last identity plus the increment value. If neither argument is given, both will default to 1.

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Author Comment

by:RUSTY
ID: 1496472
Using VB 5.0  with a jet db.  Will be creating the db in Access, however the data from mcix's comment is not available, according to Microsoft.
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Expert Comment

by:trillian30
ID: 1496473
Here is some info from the Access 97 help files...
hope it helps

Change the starting value of an incrementing AutoNumber field

For a new table that contains no records, you can change the starting value of an AutoNumber field that has its NewValues property set to Increment to a number other than 1. For a table that contains records, you can also use this procedure to change the next value assigned in an AutoNumber field to a new number.

1      Create a temporary table with just one field, a Number field; set its FieldSize property to Long Integer and give it the same name as the AutoNumber field in the table whose value you want to change.


2      In Datasheet view, enter a value in the Number field of the temporary table that is 1 less than the starting value you want for the AutoNumber field. For example, if you want the AutoNumber field to start at 100, enter 99 in the Number field.

3      Create and run an append query to append the temporary table to the table whose AutoNumber value you want to change.

Note   If your original table has a primary key, you must temporarily remove the primary key before running the append query. Also, if your original table contains fields that have the Required property set to Yes, the Indexed property set to Yes (No Duplicates), or field and/or record ValidationRule property settings that prevent Null entries in fields, you must temporarily disable these settings.

4      Delete the temporary table.
5      Delete the record added by the append query.
6      If you had to disable property settings in step 3, return them to their original settings.

When you enter a record in the remaining table, Microsoft Access uses an AutoNumber field value 1 greater than the value you entered in the temporary table.

Note   If you want to compact the database after changing the starting AutoNumber value, make sure to add at least one record to the table first. If you don't, when you compact the database, the AutoNumber value for the next record added will be reset to 1 more than the highest previous value. For example, if there were no records in the table when you reset the starting value, compacting would set the AutoNumber value for the next record added to 1; if there were records in the table when you reset the starting value and the highest previous value was 50, compacting would set the AutoNumber value for the next record added to 51.

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Author Comment

by:RUSTY
ID: 1496474
trillian30,

Splendid.  Please post answer so I can award points.  Thanks.

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Accepted Solution

by:
trillian30 earned 40 total points
ID: 1496475
Here is some info from the Access 97 help files...
hope it helps

Change the starting value of an incrementing AutoNumber field

For a new table that contains no records, you can change the starting value of an AutoNumber field that has its NewValues property set to Increment to a number other than 1. For a table that contains records, you can also use this procedure to change the next value assigned in an AutoNumber field to a new number.

1 Create a temporary table with just one field, a Number field; set its FieldSize property to Long Integer and give it the same name as the AutoNumber field in the table whose value you want to change.


2 In Datasheet view, enter a value in the Number field of the temporary table that is 1 less than the starting value you want for the AutoNumber field. For example, if you want the AutoNumber field to start at 100, enter 99 in the Number field.

3 Create and run an append query to append the temporary table to the table whose AutoNumber value you want to change.

Note   If your original table has a primary key, you must temporarily remove the primary key before running the append query. Also, if your original table contains fields that have the Required property set to Yes, the Indexed property set to Yes (No Duplicates), or field and/or record ValidationRule property settings that prevent Null entries in fields, you must temporarily disable these settings.

4 Delete the temporary table.
5 Delete the record added by the append query.
6 If you had to disable property settings in step 3, return them to their original settings.

When you enter a record in the remaining table, Microsoft Access uses an AutoNumber field value 1 greater than the value you entered in the temporary table.

Note   If you want to compact the database after changing the starting AutoNumber value, make sure to add at least one record to the table first. If you don't, when you compact the database, the AutoNumber value for the next record added will be reset to 1 more than the highest previous value. For example, if there were no records in the table when you reset the starting value, compacting would set the AutoNumber value for the next record added to 1; if there were records in the table when you reset the starting value and the highest previous value was 50, compacting would set the AutoNumber value for the next record added to 51.
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