This SQL is for hierarchical Trees but I dont understand it
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Thread: This SQL is for hierarchical Trees but I dont understand it

  1. #1
    Join Date
    Aug 2003
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    Unhappy This SQL is for hierarchical Trees but I dont understand it

    This SQL is for hierarchical Trees but I dont understand it.
    Its ont the oracle university book.

    select 1, level, ename, NULL, to_char(empno)
    from emp
    connect by prior empno = mgr
    start with job =''PRESIDENT''


    I dont understand why select 1,
    AND I also dont understand the last 2 lines. connect by prior and start with??
    thanks
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    perrohijueputa@hotmail.com

  2. #2
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    Cheers!
    OraKid.

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    add me to your messenger

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  4. #4
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