Posted by --CELKO-- on 10/02/71 11:51

Your sample data is a mess, but the usual way is to build a calendar
and join these improperly designed tables together with BETWEEN
predicates, something like:

SELECT C.cal_date, T1.a, T2.b, ..
FROM Calendar AS C, T1, T2
WHERE C.cal_date BETWEEN T1.start_date AND T1.end_date
AND C.cal_date BETWEEN T2.start_date AND T2.end_date
AND .. ;

MIssing or reversed data will not be shown in this query.

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