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  1. #1
    Join Date
    Aug 2013
    Posts
    6

    Unanswered: Please help a noob with some query syntax

    Hello,

    First time poster so sorry if this lacks specificity.

    All I know about our database is that it is Db2, assuming a fairly recent version. This is a very basic syntax question so i'm hoping the lack of that kind of information won't matter.

    As part of a SELECT statement, one of the columns i'm selecting is 'course_outline'. At the moment it is (as it should) returning the actual value within each 'course_outline' cell that I have joined to the 'course' column/table.

    Rather than returning the actual 'course_outline' value, I just want to return something that tells me whether or not there is a value in the cell.

    Logically it would play out as

    SELECT
    course.course,
    course_outline.course_outline <-- (return value 'yes' if cell is not null)
    from course
    INNER JOIN course_outline ON course_outline.course_id = course.course_id

    I have no idea what clause to use to make this happen.

    Thanks and sorry if this is a dumb question.

  2. #2
    Join Date
    Apr 2006
    Location
    Belgium
    Posts
    2,514
    Provided Answers: 11
    have a look at case :CASE
    Best Regards, Guy Przytula
    Database Software Consultant
    Good DBAs are not formed in a week or a month. They are created little by little, day by day. Protracted and patient effort is needed to develop good DBAs.
    Spoon feeding : To treat (another) in a way that discourages independent thought or action, as by overindulgence.
    DB2 UDB LUW Certified V7-V8-V9-V9.7-V10.1-V10.5 DB Admin - Advanced DBA -Dprop..
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  3. #3
    Join Date
    Aug 2013
    Posts
    6
    Thankyou - feeling like less of a noob now. Have massively expanded my ability to write useful queries.

    However, I did find this tutorial on CASE to be a lot more helpful: DB2 SQL examples

    Thanks again.

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