question

barbs avatar image
barbs asked

eliminate dates from table1 that do not fall into a range of dates in table2

i have a table with following dates: date1 membid 05/24/2008 11 05/31/2008 11 06/07/2008 11 06/10/2008 11 06/12/2008 11 06/14/2008 11 06/17/2008 11 06/19/2008 11 table2 with the range of dates for same person startdte enddte id 05/28/2008 05/28/2008 11 06/09/2008 06/09/2008 11 06/17/2008 06/17/2008 11 or table2 can have dates such as 5/28/2008 5/30/2008 11 I want the dates in table one that are not in any of the ranges in table 2. I can't seem to get this to work. I've tried where date1 startdte or date1>enddte but does not work
t-sqlsql-server-2000tsql
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ThomasRushton avatar image
ThomasRushton answered
Something along these lines? SELECT t1.* FROM t1 OUTER JOIN t2 ON t1.date1 >= t2.startdte AND t1.date1
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I wasn't online at the time - baking christmas cookies for my son's kindergarten. in spirit i had you both beaten ;)
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+1 beat me to it because I didn't read the question !! How many times must I learn. Read, read and read again.......
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Just wondering if @WilliamD is OK - surprised he didn't manage to beat both of us to the punch! ;-)
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Good excuse. That's one of the downsides of this contracting malarkey - spending time miles from home...
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Kev Riley avatar image
Kev Riley answered
select t1.date1 from table1 t1 left join table2 t2 on t1.membid = t2.id and t1.date1 between t2.startdte and t2.enddte where t2.startdte is null
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Have a consolation point for including the membid / id in the join criteria!
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