How are you wanting to "see" the earliest of the two records?
How are you searching?

How much control over the file do you have?

If you sorted the file by uniqueId, Date, then time,
you could use vlookup to look up the uniqueId and return
the date, then a second vlookup to return the time.
vlookup would only return the first occurence.

If you're wanting a more programmatica (VBA) solution,
you could read through the data and store it in a 
dictionary item.  compare the date/time and store only the earliest.

lots of ways...

how do you WANT it to work?

Paul




________________________________
From: Lee <rad...@progressivetel.com>
To: MS EXCEL AND VBA MACROS <excel-macros@googlegroups.com>
Sent: Friday, July 24, 2009 9:28:29 AM
Subject: $$Excel-Macros$$ Need earliest record based in unique identifier


I have a bunch of test data.  Column A is the date, Column C is the
time and Column E is the unique identifier.  Because this is test
data, a failed unit might be tested multiple times.  What I need is a
way to find the earliest test time of the unique identifier in Column
E.

How do I restrict the data to return me the earliest date and time for
a unique unit from Column E, when the date and time are in two
separate columns?


Column A          Column B          Column C          Column
D          Column E
12-Mar-08          XXXXXXX            15:22:25
XXXXXXXX        12345678
12-Mar-08          XXXXXXX            15:25:25
XXXXXXXX        12345679
12-Mar-08          XXXXXXX            15:28:27
XXXXXXXX        12345680
12-Mar-08          XXXXXXX            15:32:45
XXXXXXXX        12345681
12-Mar-08          XXXXXXX            16:22:25
XXXXXXXX        12345678
12-Mar-08          XXXXXXX            16:25:25
XXXXXXXX        12345679
12-Mar-08          XXXXXXX            15:28:27
XXXXXXXX        12345698
12-Mar-08          XXXXXXX            15:32:45
XXXXXXXX        12345699

In the example above there are two duplicates (12345678, and
12345679).  I would only want to see the earliest of the two records
based on the identifier in column E.

Thanks!
Lee


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