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bbrooks_sciques · ‎04-22-2011

I checked that page. Unfortunately, I can't tell how to access the columns on both sides of the join at the same time in order to subtract the after value from the before value.

bbrooks_sciques · ‎04-21-2011

I'm trying to do something similar the following in sql: select after.ne - before.ne, after.bpdlr - before.bpdlr from tablea after left outer join tableb before on (a.hash = b.hash) where a.timestamp='2011-04-21 12:00:00' and b.timestamp='2011-04-21 11:00:00' Any suggestions?

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sql left join query

Re: sql left join query

sql left join query

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sql left join query

Re: sql left join query

sql left join query