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Editorial Team
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Asked: 2026-05-28T07:36:54+00:00

I am converting a 300 line sql server query to Oracle, some statements have

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I am converting a 300 line sql server query to Oracle, some statements have me stuck, any help here would be fantastic:

1. SELECT L_SPLIT_DATE = NULLIF(SPLIT_DATE, CONVERT(DATETIME, '20000101', 112)) + 1
    FROM OGEN.GEN_P_ARCHIVE

 ----- Not sure about NULLIF and CONVERT. Datetime i think has to become DATE.

2. IF @@ROWCOUNT = 0  

   ---- 2 "@' signs, do I just remove them both?

3. SET @L_EDT = DATEDIFF(dd, 0, DATEADD(dd, 0, @P_EDT)) + (@L_EDT - DATEDIFF(dd, 0, DATEADD(dd, 0, @L_EDT))) + CASE WHEN @L_SDT > @L_EDT THEN 1 ELSE 0 END;

DATEDIFF, DATEADD, are these the same in Oracle?

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1 Answer

  1. Editorial Team

    As for the SELECT

    SELECT NVL(SPLIT_DATE, TO_DATE ('20000101', 'YYYYMMDD')) + 1 AS L_SPLIT_DATE FROM OGEN.GEN_P_ARCHIVE

    As for ROWCOUNT that is a bit more complex – without context that is hard to answer.

    As for DATEDIFF and DATEADD – in Oracle you can just work with - and +, Oracle interpretes the operands as DATE and “number of days” (can be floating point) respectively.

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