Using common table expressions - in line views

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  • Jacob Pallapati

    Using common table expressions - in line views

    Hi,

    I have a trigger in which I build a String from the contents of a
    table. In a stored procedure I would use a cursor which would look
    like:

    set str_to_build = '';

    create c1 cursor for
    select col1 from table1;

    fetch c1 into str_var1;

    while SQLCODE = 0 do
    set str_to_build = str_to_build || str_var1;
    fetch c1 into str_var1;
    end while;

    I would like to do something similar in a trigger. From searching this
    forum I came to understand that this can be done using Common Table
    Expressions. As I am new to db2 I do not know how this is done. Any
    sample code that will help me do this will be greatly appreciated.

    Thanks,
    Jake
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