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05.29.2008 at 02:21PM PDT, ID: 23443006
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9.2

Using DISTINCT in a query to display one unique record per column

Asked by Janrow in ColdFusion Application Server, MS SQL Server

Tags:

A table contains the column names TITLE and AREA. Each AREA contains many TITLES.

I want to display a list of AREA TITLEs that match a string from the AREA DESCRIPTION, but only one TITLE from each AREA. There should be no AREA duplicates, that is, each TITLE should be located in a different AREA.

How can I do this using my query below?
It does not work. It returns multiple TITLES from the same AREA like this:

  TITLE             AREA
--------             ----------
canada_01     area = 3
canada_02     area = 3
canada_03     area = 3

Only one title should be displayed from area 3 or any other area.

Do I need to use SELECT TOP 1 DISTINCT AREA,TITLE
then do a CFLOOP to get what I want or can DISTINCT, in some other form, do the trick? I really need help on this one, ASAP! If so, how? Would someone give me an example?
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<CFQUERY NAME="TITLES" DATASOURCE="BOOKS">
  SELECT DISTINCT AREA,TITLE
  FROM LIBFILES
  WHERE DESCRIPTION LIKE '%#FORM.DESCRIPTION#%'
</CFQUERY>
 
Keywords: Using DISTINCT in a query to display on…
Title
1 SQL 2000 - making records distinct
2 Oracle SQL distinct query
3 Using distinct on multiple columns
4 Scalar Distinct Count with Group By
5 SQL count distinct question
6 Distinct
 
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[+][-]05.29.2008 at 05:52PM PDT, ID: 21674510

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[+][-]05.30.2008 at 12:04AM PDT, ID: 21675759

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[+][-]05.30.2008 at 12:07AM PDT, ID: 21675769

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About this solution

Zones: ColdFusion Application Server, MS SQL Server
Tags: Coldfusion
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Solution Provided By: Thomasian
Participating Experts: 2
Solution Grade: A
 
 
 
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