Combining fields of matching records

  • I have a table that contains several fields, and some of the records are identical except for one of those fields. I'm trying to write a query to return a single row that contains each field plus a combination field representing the concatenated values that were unique to each row.

    For example:

    FIELD1 | FIELD2 | FIELD3 | FIELD4

    ROW1 | ABC DEF GHI JKL

    ROW2 | ABC DEF GHI MNO

    And I want the output to look like:

    OUTPUT | ABCDEF GHI JKL,MNO

    I can do this in .NET code, but I was hoping to do this in the SQL. Is it possible?

    I've found this example, but haven't been able to make it work correctly and don't really understand all of it:

    SELECT p.ASSIGNNUM,p.DESC,p.STARTDATE,LEFT(el.EmpList,LEN(el.EmpList)-1)

    FROM TableParent p

    CROSS APPLY (SELECT EMPLOYEENUM + ',' AS [text()]

    FROM TableChild

    WHERE ASSIGNNUM =p.ASSIGNNUM

    FOR XML PATH(''))el(EmpList)

  • It is absolutely possible to do in sql. This article explains how to generate comma separated lists.

    http://www.sqlservercentral.com/articles/71700/[/url]

    If you need coding assistance, we will need a few things:

    1. Sample DDL in the form of CREATE TABLE statements

    2. Sample data in the form of INSERT INTO statements

    3. Expected results based on the sample data

    Please take a few minutes and read the first article in my signature for best practices when posting questions.

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