× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. December 2006

SQL Delete question

Greetings!

I have a file that, among other fields, has Account_Number, Date, Sequence
number.

In the file there are multiple occurrences of those three fields.  Example

Account_Number     Date    Sequence_number
           1             20061206           01
           1             20061206           01
           1             20061206           01
           1             20061206           02
           1             20061206           02
           1             20061206           02
           1             20061206           03
           1             20061206           03
           1             20061206           03
           1             20061206           04
           1             20061206           04
           1             20061206           04

What I am looking for is a way to delete all but one occurrence of the
repeated data to get a file that looks like;

Account_Number     Date    Sequence_number
           1             20061206           01
           1             20061206           02
           1             20061206           03
           1             20061206           04


Is this something I can do with SQL?  If so, what would the SQL statement
look like?


Jim

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2025 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.