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From:Mark Haney Date:October 11 2012 5:46pm
Subject:column aliases in query
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I know it's been a while since I wrote serious queries, but I'm sure I 
have done something like this before:

SELECT SUBSTR(date,1,10) as vDate, event_id, events.mach_id, 
machine.factory_id FROM events JOIN machine ON events.mach_id = 
machine.mach_id WHERE machine.factory_id = "1" AND vDate = "2012-10-11"

Where I've aliased the SUBSTR of the date and then used the alias in the 
WHERE clause of the query.  I'm getting an error message now, but I'm 
almost certain I've used that syntax before.  Am I missing something?


Mark Haney
Software Developer/Consultant
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Linux 3.5.1-1.fc17.x86_64 GNU/Linux
column aliases in queryMark Haney11 Oct
  • RE: column aliases in queryRick James11 Oct
  • Re: column aliases in queryhsv11 Oct