Advanced T-SQL

  • Hi,

    I have a text field for example

    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(1)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(1)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(1)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

    I need find out the position of last occurrence of (1) in above text, is there any easiest way to do.

    I know can find with loop looking for different method. Any ideas appreciated.

    Thanks in advance.

  • no easy way in TSQL that I can think of. If you need to do this for a set, it will be cumbersome. Some type of loop or cursor might be needed.

    Steve Jones

    sjones@sqlservercentral.com

    http://qa.sqlservercentral.com/columnists/sjones

    The Best of SQL Server Central.com 2002 - http://qa.sqlservercentral.com/bestof/

    http://www.dkranch.net

  • The Follwing Exmplw May Be of Some Use

    --------------------------

    -- Aggregate Bitwise OR --

    --------------------------

    -- data and schema

    CREATE TABLE Bitvalues

    (

    key_col int NOT NULL PRIMARY KEY,

    group_col int NOT NULL,

    data_bits int NOT NULL

    )

    INSERT INTO Bitvalues VALUES(1, 1, 1) -- ...0001

    INSERT INTO Bitvalues VALUES(2, 1, 9) -- ...1001

    INSERT INTO Bitvalues VALUES(3, 1, 2) -- ...0010

    INSERT INTO Bitvalues VALUES(4, 2, 8) -- ...1000

    INSERT INTO Bitvalues VALUES(5, 2, 3) -- ...0011

    INSERT INTO Bitvalues VALUES(6, 2, 7) -- ...0111

    INSERT INTO Bitvalues VALUES(7, 3, 4) -- ...0100

    INSERT INTO Bitvalues VALUES(8, 3, 6) -- ...0110

    INSERT INTO Bitvalues VALUES(9, 3, 5) -- ...0101

    -- desired output

    group_col or_data_col

    ----------- -----------

    1 11 -- ...1011

    2 15 -- ...1111

    3 7 -- ...0111

    -- auxiliary table

    CREATE TABLE Bits

    (

    bin_val BINARY(4) NOT NULL PRIMARY KEY

    )

    INSERT INTO Bits VALUES(0x00000001)

    INSERT INTO Bits VALUES(0x00000002)

    INSERT INTO Bits VALUES(0x00000004)

    INSERT INTO Bits VALUES(0x00000008)

    INSERT INTO Bits VALUES(0x00000010)

    INSERT INTO Bits VALUES(0x00000020)

    INSERT INTO Bits VALUES(0x00000040)

    INSERT INTO Bits VALUES(0x00000080)

    INSERT INTO Bits VALUES(0x00000100)

    INSERT INTO Bits VALUES(0x00000200)

    INSERT INTO Bits VALUES(0x00000400)

    INSERT INTO Bits VALUES(0x00000800)

    INSERT INTO Bits VALUES(0x00001000)

    INSERT INTO Bits VALUES(0x00002000)

    INSERT INTO Bits VALUES(0x00004000)

    INSERT INTO Bits VALUES(0x00008000)

    INSERT INTO Bits VALUES(0x00010000)

    INSERT INTO Bits VALUES(0x00020000)

    INSERT INTO Bits VALUES(0x00040000)

    INSERT INTO Bits VALUES(0x00080000)

    INSERT INTO Bits VALUES(0x00100000)

    INSERT INTO Bits VALUES(0x00200000)

    INSERT INTO Bits VALUES(0x00400000)

    INSERT INTO Bits VALUES(0x00800000)

    INSERT INTO Bits VALUES(0x01000000)

    INSERT INTO Bits VALUES(0x02000000)

    INSERT INTO Bits VALUES(0x04000000)

    INSERT INTO Bits VALUES(0x08000000)

    INSERT INTO Bits VALUES(0x10000000)

    INSERT INTO Bits VALUES(0x20000000)

    INSERT INTO Bits VALUES(0x40000000)

    INSERT INTO Bits VALUES(0x80000000)

    -- breaking up the values in the Bitvalues table

    SELECT *

    FROM Bitvalues JOIN Bits

    ON data_bits & bin_val = bin_val

    key_col group_col data_bits bin_val

    ----------- ----------- ----------- ----------

    1 1 1 0x00000001

    2 1 9 0x00000001

    2 1 9 0x00000008

    3 1 2 0x00000002

    4 2 8 0x00000008

    5 2 3 0x00000001

    5 2 3 0x00000002

    6 2 7 0x00000001

    6 2 7 0x00000002

    6 2 7 0x00000004

    7 3 4 0x00000004

    8 3 6 0x00000002

    8 3 6 0x00000004

    9 3 5 0x00000001

    9 3 5 0x00000004

    -- Aggregate Bitwise OR

    SELECT

    group_col,

    SUM(DISTINCT(CAST(bin_val AS int))) AS or_data_col

    FROM Bitvalues JOIN Bits

    ON data_bits & bin_val = bin_val

    GROUP BY group_col

  • is that a TEXT type or a varchar type?


    * Noel

  • TEXT type

  • if it's under 8000 bytes, you can convert to varchar & process:

    SELECT datalength(textCol) -

    charindex(')1(',reverse(cast(textCol as varchar(8000))))

    FROM textTable

    Otherwise I suppose it can be done with TEXTPTR.

    Seems a shame because there is PATINDEX, which is great for finding the first occurrence.

    The only normal people are those you don't know well - Oscar Wilde

    Data: Easy to spill, hard to clean up!

  • SELECT DATALENGTH('aa(1)aaaaa(1)aaaaa')-PATINDEX('%[(1)]%', REVERSE('aa(1)aaaaa(1)aaaaa')) --will give you the position of the '1' in the middle.

    You will still have to jack with it a bit depending on whether you want the position of the '1' or '(' or ')', but you get the idea. If the pattern is always '(1)' then you only need to add + whatever at the end. Otherwise you may need to use some substring function or other.

    Jules

    [font="Courier New"]ZenDada[/font]

  • It is working fine the example you gave but not on my data.

    My data looks like the following

    SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (1)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (2)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (3)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING

    (4)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (5)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    --------------------------------------------------------------------------------------------------

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (1)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (2)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (3)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING

    (4)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (5)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    --------------------------------------------------------------------------------------------------

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (1)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (2)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (3)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING

    (4)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (5)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    --------------------------------------------------------------------------------------------------

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (1)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (2)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (3)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING

    (4)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (5)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    I need to find out the last occurrence of last (1)%(5), Any ideas appreciated.

    Thanks in advance.

  • I'm sorry, please explain. (1)%(5) refers to the entire bulleted list? So you want to find the position of the '1'? The '5'? Or both? Or what?

    Jules

    [font="Courier New"]ZenDada[/font]

  • I am sorry did not posted properly,I want to find out the last position of following paragraph

    (1)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (2)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (3)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING

    (4)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    -SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    (5)-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING-SOMETHING

    Thanks

  • Then maybe you want the line feed character at the end of the last line in bullet(5)?

    Jules

    [font="Courier New"]ZenDada[/font]

  • I did not follow you, Could you please explain bit more.

    Thanks

  • Position needs to refer to A SINGLE character somewhere. What character do you want to find? The '5'? The'g' at the end of the sentence? The first character AFTER the 'g' which is the line feed character? Or what?

    Jules

    [font="Courier New"]ZenDada[/font]

  • 1. What is the Max(DataLength()) you would be dealing with?

    2. Is the data CR/LF delimited, or other delimiter?

    3. Is there any guarantee that the ending 8000 characters of the data will have what you are looking for?



    Once you understand the BITs, all the pieces come together

  • DECLARE @test-2 AS VARCHAR(8000)

    DECLARE @TEST2 AS VARCHAR(8000)

    DECLARE @POS AS INT

    DECLARE @POS2 AS INT

    SELECT @test-2 = (SELECT CAST(TEST AS VARCHAR(8000)) FROM TBL_TEST)

    SET @POS = (SELECT DATALENGTH(@TEST)-PATINDEX('%[1-9]%', REVERSE(@TEST))+1)

    SELECT @TEST2 = (SELECT SUBSTRING(@TEST, @POS, DATALENGTH(@TEST)))

    SET @POS2 = CHARINDEX(CHAR(13), @TEST2)+ @POS

    I think that will give you the position of the first carriage return after the last bullet number or thereabouts. Play with it.

    Jules

    [font="Courier New"]ZenDada[/font]

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