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Re: Backup and trimming data idea
Posted by: newbie Shai
Date: June 26, 2012 08:46AM

Dear Rick,
Ok I made a mistake here is should be
tblEventAlert needs
INDEX(linkID, eventAlertDateTime). I dont understand why is the index needed for tblLink needs
INDEX(compID, dateTimeStartJourney) isnt we looking for linkID here? For now the tblLink is not having that many data yet but we do anticipate that much of data in future but again for the 3 months time period I dont think so it will be 64k. We dont remove data from tblGeoFence. Yes we need to purge tblLink,tblMainData,tblSubData,tblEmailLog and tblEventAlert. But the decision is made basec on tblLink so from there we need to cascade the delete to rest of the tables. So what is your best suggestion?

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