Using REVERSE

  • Jeff Moden wrote:

    ScottPletcher wrote:

    You don't really need a pk or any other column from the main table.  Also, I assumed you're rather see blank than NULL for missing levels, but if not, just remove the ISNULL()s and naturally you'll see NULLs instead of blanks.

    SELECT ca1.*
    FROM #ACME A
    CROSS APPLY (
    SELECT
    ISNULL(MAX(CASE WHEN ItemNumber = 1 THEN Item END), '') AS Level1,
    ISNULL(MAX(CASE WHEN ItemNumber = 2 THEN Item END), '') AS Level2,
    ISNULL(MAX(CASE WHEN ItemNumber = 3 THEN Item END), '') AS Level3,
    ISNULL(MAX(CASE WHEN ItemNumber = 4 THEN Item END), '') AS Level4,
    ISNULL(MAX(CASE WHEN ItemNumber = 5 THEN Item END), '') AS Level5,
    ISNULL(MAX(CASE WHEN ItemNumber = 6 THEN Item END), '') AS Level6,
    ISNULL(MAX(CASE WHEN ItemNumber = 7 THEN Item END), '') AS Level7,
    ISNULL(MAX(CASE WHEN ItemNumber = 8 THEN Item END), '') AS Level8,
    ISNULL(MAX(CASE WHEN ItemNumber = 9 THEN Item END), '') AS Level9,
    ISNULL(MAX(CASE WHEN ItemNumber =10 THEN Item END), '') AS Level10
    FROM ( SELECT * FROM dbo.DelimitedSplit8K(A.TreePath, ',') ) AS ds
    ) AS ca1

    Yes, that'll work... until you need to join that back to information in the "real" table.

    Huh?  You can reference any columns you need from the main table in the CA.

    SQL DBA,SQL Server MVP(07, 08, 09) Prosecutor James Blackburn, in closing argument in the Fatal Vision murders trial: "If in the future, you should cry a tear, cry one for them [the murder victims]. If in the future, you should say a prayer, say one for them. And if in the future, you should light a candle, light one for them."

  • For example:

    ALTER TABLE #ACME ADD 
    new_column1 uniqueidentifier NOT NULL DEFAULT NEWID(),
    new_column2 int IDENTITY(1, 1) NOT NULL;

    SELECT ca1.*
    FROM #ACME A
    CROSS APPLY (
    SELECT A.new_column1, A.new_column2, ds.*
    FROM (
    SELECT
    ISNULL(MAX(CASE WHEN ItemNumber = 1 THEN Item END), '') AS Level1,
    ISNULL(MAX(CASE WHEN ItemNumber = 2 THEN Item END), '') AS Level2,
    ISNULL(MAX(CASE WHEN ItemNumber = 3 THEN Item END), '') AS Level3,
    ISNULL(MAX(CASE WHEN ItemNumber = 4 THEN Item END), '') AS Level4,
    ISNULL(MAX(CASE WHEN ItemNumber = 5 THEN Item END), '') AS Level5,
    ISNULL(MAX(CASE WHEN ItemNumber = 6 THEN Item END), '') AS Level6,
    ISNULL(MAX(CASE WHEN ItemNumber = 7 THEN Item END), '') AS Level7,
    ISNULL(MAX(CASE WHEN ItemNumber = 8 THEN Item END), '') AS Level8,
    ISNULL(MAX(CASE WHEN ItemNumber = 9 THEN Item END), '') AS Level9,
    ISNULL(MAX(CASE WHEN ItemNumber =10 THEN Item END), '') AS Level10
    FROM ( SELECT * FROM dbo.DelimitedSplit8K(A.TreePath, ',') ) AS ds
    ) AS ds
    ) AS ca1

    SQL DBA,SQL Server MVP(07, 08, 09) Prosecutor James Blackburn, in closing argument in the Fatal Vision murders trial: "If in the future, you should cry a tear, cry one for them [the murder victims]. If in the future, you should say a prayer, say one for them. And if in the future, you should light a candle, light one for them."

  • ScottPletcher wrote:

    Jeff Moden wrote:

    ScottPletcher wrote:

    You don't really need a pk or any other column from the main table.  Also, I assumed you're rather see blank than NULL for missing levels, but if not, just remove the ISNULL()s and naturally you'll see NULLs instead of blanks.

    SELECT ca1.*
    FROM #ACME A
    CROSS APPLY (
    SELECT
    ISNULL(MAX(CASE WHEN ItemNumber = 1 THEN Item END), '') AS Level1,
    ISNULL(MAX(CASE WHEN ItemNumber = 2 THEN Item END), '') AS Level2,
    ISNULL(MAX(CASE WHEN ItemNumber = 3 THEN Item END), '') AS Level3,
    ISNULL(MAX(CASE WHEN ItemNumber = 4 THEN Item END), '') AS Level4,
    ISNULL(MAX(CASE WHEN ItemNumber = 5 THEN Item END), '') AS Level5,
    ISNULL(MAX(CASE WHEN ItemNumber = 6 THEN Item END), '') AS Level6,
    ISNULL(MAX(CASE WHEN ItemNumber = 7 THEN Item END), '') AS Level7,
    ISNULL(MAX(CASE WHEN ItemNumber = 8 THEN Item END), '') AS Level8,
    ISNULL(MAX(CASE WHEN ItemNumber = 9 THEN Item END), '') AS Level9,
    ISNULL(MAX(CASE WHEN ItemNumber =10 THEN Item END), '') AS Level10
    FROM ( SELECT * FROM dbo.DelimitedSplit8K(A.TreePath, ',') ) AS ds
    ) AS ca1

    Yes, that'll work... until you need to join that back to information in the "real" table.

    Huh?  You can reference any columns you need from the main table in the CA.

    My apologies... a bit of confusion going on here because #ACME, as it is posted in the data by the op, has no columns other than the TreePath.  If #ACME were changed to the real table name, then I agree.

    --Jeff Moden


    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
    "Change is inevitable... change for the better is not".
    "Dear Lord... I'm a DBA so please give me patience because, if you give me strength, I'm going to need bail money too!"

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)

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  • This was removed by the editor as SPAM

  • Thank you for the code Jeffery, that worked perfectly and thank you to everyone else for your input

  • This was removed by the editor as SPAM

  • Just FYI, the reason you're getting NULLs in the code you have is the PARSENAME function.

    This function is designed to return a part of an object name. As objects can only have 4 parts, separated by at most 3 dots, if you try to use it on a string with more than 3 dots it fails.

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