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  • INTERVIEW QUESTIONS DATA WAREHOUSING DATASTAGE DETAILS
    Question :
    What about System variables?


    Category DataStage Interview Questions
    Rating (0.9) By 167 users
    Added on 7/26/2006
    Views 1868
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    Answers:

    DataStage provides a set of variables containing useful system information that you can access from a transform or routine. System variables are read-only.

    @DATE The internal date when the program started. See the Date function.

    @DAY The day of the month extracted from the value in @DATE.

    @FALSE The compiler replaces the value with 0.

    @FM A field mark, Char(254).

    @IM An item mark, Char(255).

    @INROWNUM Input row counter. For use in constrains and derivations in Transformer stages.

    @OUTROWNUM Output row counter (per link). For use in derivations in Transformer stages.

    @LOGNAME The user login name.

    @MONTH The current extracted from the value in @DATE.

    @NULL The null value.

    @NULL.STR The internal representation of the null value, Char(128).

    @PATH The pathname of the current DataStage project.

    @SCHEMA The schema name of the current DataStage project.

    @SM A subvalue mark (a delimiter used in UniVerse files), Char(252).

    @SYSTEM.RETURN.CODE
    Status codes returned by system processes or commands.

    @TIME The internal time when the program started. See the Time function.

    @TM A text mark (a delimiter used in UniVerse files), Char(251).

    @TRUE The compiler replaces the value with 1.

    @USERNO The user number.

    @VM A value mark (a delimiter used in UniVerse files), Char(253).

    @WHO The name of the current DataStage project directory.

    @YEAR The current year extracted from @DATE.

    REJECTED Can be used in the constraint expression of a Transformer stage of an output link. REJECTED is initially TRUE, but is set to FALSE whenever an output link is successfully written.



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