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Basic sql

Basic sql

2004-11-09       - By Stephens, Chris
Reply:     1     2     3     4     5     6  

Well I 've had my coffee and I still can 't get this to work:

SELECT COUNT(*) FROM a
WHERE EXISTS (SELECT *=20
        FROM b
         WHERE a.unit_id =3D b.unit_id
         and a.op_year =3D b.op_year
         and extract(month from a.op_date) BETWEEN CASE
          WHEN b.qtr =3D 1 THEN 1 AND 3
          WHEN b.qtr =3D 2 THEN 4 AND 6
          WHEN b.qtr =3D 3 THEN7 AND 9
          WHEN b.qtr =3D 4 THEN 10 AND 12
          END)
/

I 've tried several variations of this (all that I can think of)i.e.
quotes and parenthesis in all kinds of places, case to build entire last
filter instead of just the '1 and 3 ' pieces. and it always returns:

ERROR at line 7:
ORA-00905 (See ORA-00905.ora-code.com): missing keyword

9.2 on windows

What simple thing am I missing now?

Thank you for the extra eyes!
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