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sql language to remove repeat data within specific timeline

Posted 14 May 2009 13:14:20
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14 May 2009 13:14:20 Glen Hynes posted:
hey all..

im new enough with sql language and need help with a query that i am trying to show..

i pull alarm data from a database and it gives me all the alarms that occur with the following columns..

Tool time_occured alarmtext


When I run the query say it gives me 5 alarms….


Tool time_occured alarmtext

#1 12:20 DOOR OPEN

#1 12:21 DOOR OPEN

#1 12:30 DOOR OPEN

#2 12:20 DOOR OPEN

#2 12:24 DOOR OPEN



What I need is the table to show the following…


Tool time_occured alarmtext

#1 12:20 DOOR OPEN

#1 12:30 DOOR OPEN

#2 12:20 DOOR OPEN



I want to show alarms for tools… but not show an alarm if the same alarm occurs within 5 minutes of the first alarm of that type on the unique tool…

Is this doable??



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