Add condition when merge?

can I add if flag = 'A' before inserting it?

merge into A j

    using ( select * from B where flag='O') csl

    on (nj.appno=csl.appno

    AND nvl(j.exam_type, 'null') = nvl(csl.exam_type, 'null')

    AND nvl(j.exam_year,    'null') = nvl(csl.exam_year,    'null')

    AND nvl(j.exam_month,    'null') = nvl(csl.exam_month,    'null')

       AND vl(j.exam_level,    'null') = nvl(csl.exam_level,    'null')

       AND vl(j.exam_board,    'null') = nvl(csl.exam_board,    'null')

       AND vl(j.subject_code,  'null') = nvl(csl.subject_code,  'null')

       AND vl(j.subject_other, 'null')= nvl(csl.subject_code_other, 'null')

    )

    when  matched then

       update set j.grade=csl.grade,

                  j.grade_other=csl.grade_other 

    when not matched then

    insert (j.appno, j.exam_type, j.exam_year, j.exam_month, j.exam_level,

             j.exam_board, j.subject_code,j.subject_other,

    j.actual_grade, j.actual_grade_other,

    j.predict_grade, j.predict_grade_other, j.release_date, j.official_grade, j.counselor_grade,

    j.counselor_grade_other)  values(csl.appno, csl.exam_type, csl.exam_year, csl.exam_month, csl.exam_level,

    csl.exam_board, csl.subject_code, csl.subject_code_other, csl.actual_grade, csl.actual_grade_other,

    csl.predict_grade, csl.predict_grade_other,  csl.release_date,  csl.official_grade, csl.counselor_grade,

    csl.counselor_grade_other

    );

Almost

You can have a WHERE clause after the INSERT () INSERT for example (...) values (...) WHERE FLAG = "A";

Tags: Database

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