Update query

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Update query

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All Forums >> Web Development >> ASP, PHP, and Database >> Update query

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SerenityNet

Posts: 1387
Joined: 6/12/2001
From: Allen, TX, USA
Status: offline

Update query - 2/19/2003 19:01:43

In an Access database, I have a quintillion records. In one column, I have fields where some of the data ends in the letter " T" and some does not. I want to get rid of the " T" , but leave everything else intact. It would look something like this:

To Start:

Column 1     Column 2     Column 3
item1        another1     again1
item2T       another2     again2
item11       another11    again11
item3T       another3     again3
item9T       another9     again9

When Done:

Column 1     Column 2     Column 3
item1        another1     again1
item2        another2     again2
item11       another11    again11
item3        another3     again3
item9        another9     again9

How do I do this?

Thanks in advance,
Andrew

_____________________________

</Chaos, panic, & disorder - my work here is done.>


hhammash Posts: 1064 Joined: 8/19/2002 Status: offline	RE: Update query - 2/19/2003 21:38:19 Hi, Try this: UPDATE Table1 SET Table1.ItemName = IIf(Right([ItemName],1)=" t" ,Left([ItemName],Len([ItemName])-1),[ItemName]); Here ItemName is your Column1. Regards Hisham (in reply to SerenityNet)


SerenityNet Posts: 1387 Joined: 6/12/2001 From: Allen, TX, USA Status: offline	RE: Update query - 2/20/2003 13:32:34 Thanks Hisham, When I tried: UPDATE [WC 01] SET [WC 01].[Mrkt Prt Id] = If(Right([Mrkt Prt Id],1)=" t" ,Left([Mrkt Prt Id],Len([Mrkt Prt Id])-1),[Mrkt Prt Id]); then I received the error " Undefined function ' If' in expression." However, I tried UPDATE [WC 01] SET [WC 01].[Mrkt Prt Id] = Left([Mrkt Prt Id],Len([Mrkt Prt Id])-1) WHERE Right([Mrkt Prt Id],1)=" t" ; and this seems to work fine. Could there be something I' m missing here? Thanks, Andrew _____________________________ </Chaos, panic, & disorder - my work here is done.> (in reply to SerenityNet)


hhammash Posts: 1064 Joined: 8/19/2002 Status: offline	RE: Update query - 2/20/2003 13:39:04 Hi Andrew, It should be IIF not If. I posted it after trying it on my database, it should work. Anyway, your version should be working. It is correct. Regards Hisham (in reply to SerenityNet)


SerenityNet Posts: 1387 Joined: 6/12/2001 From: Allen, TX, USA Status: offline	RE: Update query - 2/20/2003 13:59:54 Yep, that worked fine. Thank you. I thought the IIF was a typo' in your original line. What is the " I" in " IIF" ? Am I correct that the syntax means: = IIf( the IF part , the THEN part , the ELSE part ); Andrew _____________________________ </Chaos, panic, & disorder - my work here is done.> (in reply to SerenityNet)


hhammash Posts: 1064 Joined: 8/19/2002 Status: offline	RE: Update query - 2/20/2003 15:53:50 Hi Andrew, Yes, your syntax is correct: " IF" " THEN" " ELSE" Regards Hisham (in reply to SerenityNet)


SerenityNet Posts: 1387 Joined: 6/12/2001 From: Allen, TX, USA Status: offline	RE: Update query - 2/20/2003 16:30:25 Thanks. Still, what is the first " I" in " IIf" ? Andrew _____________________________ </Chaos, panic, & disorder - my work here is done.> (in reply to SerenityNet)

Spooky

Posts: 26681
Joined: 11/11/1998
From: Middle Earth
Status: online

RE: Update query - 2/20/2003 22:48:10

Its called " Immediate" IF or IIF
Its quite a cool function in SQL and is unfortunately missing in ASP.

An example in asp is :

Function IIF(sInput,strue,sfalse)
  If sInput then
    IIF = strue
  Else
    IIF = sfalse
  End if
End Function

Then, in asp code you can call IIF as a function

' Test Variable
Variable=True

Response.write IIF(Variable, " This will write ' True' " , " This will write ' False' " )

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(in reply to SerenityNet)


SerenityNet Posts: 1387 Joined: 6/12/2001 From: Allen, TX, USA Status: offline	RE: Update query - 2/21/2003 13:19:27 Thank you. This will be handy. _____________________________ </Chaos, panic, & disorder - my work here is done.> (in reply to SerenityNet)

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