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Oracle Varrays.

    In Oracle PL/SQL Varray (an array with variable size) is an array whose number of elements can vary from zero (empty) to the declared maximum size.

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    Oracle %ROWTYPE attribute.

    In Oracle PL/SQL, the %ROWTYPE attribute provides a record type representing a string in the Oracle database table (or view).

    A record may store an …

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    Oracle TRIGGERS.

      A trigger is a named PL/SQL module that is stored in a database and can be invoked again. You can enable and disable a trigger, but you cannot explici…

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      PostgreSQL current_date function.

        The current_date function in PostgreSQL returns the current date….

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        PostgreSQL char_length function.

          The char_length function in PostgreSQL returns the length of the specified string….

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