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  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

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