Is this feasible?
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Thread: Is this feasible?

  1. #1
    Join Date
    Jan 2001
    Posts
    642
    Hi

    Feels somewhat complicated, but no so!!!!

    For a particular program, I plan to use many DML in a loop as given below. Please suggest me if it will have a adverse effect on the database.

    In my application, I have a table(A) with 2 columns
    (Account_number & accoutn_no_changed_to)

    Entries in A look like

    Acc_No(A1) Acc_change_to(A2)
    1 10
    2 3
    3 4
    5 6


    I need to update this with the account table. So I use this logic

    i=1;
    while i > 0
    { insert into B using self join A2= B1 ; // B is similar to A;
    delete from A for all rows in B;
    update account from A;
    truncate A;
    rename A to C; // for swaping tables;
    rename B to A;
    rename C to B;
    i = select count(*) from A;
    }

    1)If It is clear
    a) Please tell me having so many DML's effect on DB
    b) Is there a better way of doing it;


    Badrinath.




  2. #2
    Join Date
    Oct 2000
    Location
    Saskatoon, SK, Canada
    Posts
    3,925
    IF you are trying to use the PLSQL, DDL (renaming) wouldn't be feasible.

    Sam
    Thanx
    Sam



    Life is a journey, not a destination!


  3. #3
    Join Date
    Jan 2001
    Posts
    642
    Hi Sam,
    I am using oracle 8.1.6, where in I can use execute immediate command to use DDL's also,. It works.

  4. #4
    Join Date
    Jan 2001
    Posts
    642
    Can the advisors/DBA's throw some light on this
    (about the entire logic defined above)
    Badrinath

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