Information générale
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
Cleaning up a free table
Hi all!
Yet, I have come into a dilemmia that I have been working with for the past couple of months. I think I am at a stumping point. I have this free table with regular indexes. There is over 137,000 records contained in this table. There are some duplicates in this table, which I need to get rid of. However, I have tried the INDEX ON....UNIQUE feature of Fox. The situation is that I have these three fields:
Invoice No
Description
Code
The table contains information such as:
LINE Invoice No - Description - Code
1 1234A Gold CDs CDR-12
2 1234A Aluminum CD Case CDJ-12
3 1234A Gold CDs CDR-12
4 1235B Blue CDs CDR-23
5 1235B Plastic CD Case CDJ-23
As you can see there are dupicates of the invoice no automatically. Where as I need to filter out the duplicate invoices and delete them. (i.e. Delete Line 3 which is exactly like LINE 1)
I tried INDEXing ON the invoice no and description setting UNIQUE, but it did not fly for me. Are there any suggestions out there for me?
Thanks in advance!
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