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  1. 10-28-2009

    Thread: difference bet unique and distinct

    by tykarthick
    Answers
    4
    Views
    37,859

    Re: difference bet unique and distinct

    Unique:

    SQL> insert into emp values(eno number(4) unique,ejob varchar(15));

    Here unique restricts the user to enter the same value more than once.

    Error:Voilating constraint


    Distinct:
  2. 10-07-2009

    Thread: Difference between view and index

    by tykarthick
    Answers
    7
    Views
    49,588

    SQL Re: Difference between view and index

    View:
    To view only particular column in a table.
    Index:
    Index is used for searching purpose.
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