Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old August 14th 07, 08:16 PM posted to microsoft.public.excel.misc
external usenet poster
 
First recorded activity by ExcelBanter: Aug 2007
Posts: 1
Default merging 2 excel databases using unique identifiers

I have 2 large excel databases each containing data on about 5000 subjects

Subjects are identified by the same unique identifier in each database
("patient ID"). The other datafields (collumns) are different in each
database.

Part 1:
How do I merge the databases so that for a given unique identifier ("patient
ID") the data from both datases is attached

Part 2:
Database #2 has more subjects than database #1. I only want the patients
included in database #1.

Part 3:
Some patients appear multiple times (ie multiple procedures on different
dates). How do I deal with this?

Many thanks
Steve Miner



  #2   Report Post  
Old August 15th 07, 12:35 AM posted to microsoft.public.excel.misc
external usenet poster
 
First recorded activity by ExcelBanter: Aug 2006
Posts: 115
Default merging 2 excel databases using unique identifiers

Hi Steven,

You can use VLOOKUP with "patient ID" as the lookup value to bring in new
column information into database #1.

See my tutorial on Excel databases at
http://www.edferrero.com/ExcelTutori...0/Default.aspx
for more info.

As for Part 3 -
If you want unique data for one patientID on one date, I suggest that you
build a unique key. Something like "PatientID + date" using a formula like
=A1 & B1. Then use this unique key as the lookup value.

Ed Ferrero
www.edferrero.com


I have 2 large excel databases each containing data on about 5000 subjects

Subjects are identified by the same unique identifier in each database
("patient ID"). The other datafields (collumns) are different in each
database.

Part 1:
How do I merge the databases so that for a given unique identifier
("patient
ID") the data from both datases is attached

Part 2:
Database #2 has more subjects than database #1. I only want the patients
included in database #1.

Part 3:
Some patients appear multiple times (ie multiple procedures on different
dates). How do I deal with this?

Many thanks
Steve Miner






Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Merging Databases archsmooth Excel Worksheet Functions 1 April 3rd 07 08:07 PM
Merging to Lists into one Unique List Rob Excel Discussion (Misc queries) 4 September 21st 06 03:12 AM
How do I match unique identifiers on two Excel worksheets? Randi Hagen,--Flagler College Excel Discussion (Misc queries) 1 February 3rd 06 03:00 PM
How do I change Excel column cell identifiers back to letters? cotmc Excel Discussion (Misc queries) 4 January 20th 06 05:44 PM
compare unique identifiers in multiple ranges bawilli_91125 Charts and Charting in Excel 1 November 30th 04 06:34 PM


All times are GMT +1. The time now is 01:47 AM.

Powered by vBulletin® Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 2004-2017 ExcelBanter.
The comments are property of their posters.
 

About Us

"It's about Microsoft Excel"

 

Copyright © 2017