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SQL - If Statements
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pjb007 View Drop Down
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Points: 185 		Post Options Post Options   Thanks (0) Thanks(0)   Quote pjb007 Quote  Post ReplyReply Direct Link To This Post Topic: SQL - If Statements
    Posted: 26 October 2005 at 3:16pm
Can anyone help here, is there a better way to do this code
 



if request.querystring("state") = "uk" then
sSQL="SELECT * FROM links_news WHERE country = 'UK' ORDER BY siteTitle "
end if 


if request.querystring("state") = "us" then
sSQL="SELECT * FROM links_news WHERE country = 'America' ORDER BY siteTitle "
end if 


if request.querystring("state") = "ie" then
sSQL="SELECT * FROM links_news WHERE country = 'Ireland' ORDER BY siteTitle "
end if



if request.querystring("state") = "world" then
sSQL="SELECT * FROM links_news WHERE country = 'World' ORDER BY siteTitle "
end if  


if request.querystring("state") = "other" then
sSQL="SELECT * FROM links_news WHERE country = 'other' ORDER BY siteTitle "
end if
 
Also could anyone help with another statement that will show everything if the stats is not part of the URL?
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dfrancis View Drop Down
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Points: 442 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dfrancis Quote  Post ReplyReply Direct Link To This Post Posted: 26 October 2005 at 4:34pm 
if request.querystring("state") = "uk" then

 sSQL="SELECT * FROM links_news WHERE country = 'UK' ORDER BY siteTitle "

elseif request.querystring("state") = "us" then

 sSQL="SELECT * FROM links_news WHERE country = 'America' ORDER BY siteTitle "

elseif request.querystring("state") = "ie" then

 sSQL="SELECT * FROM links_news WHERE country = 'Ireland' ORDER BY siteTitle "

elseif request.querystring("state") = "world" then

 sSQL="SELECT * FROM links_news WHERE country = 'World' ORDER BY siteTitle "

elseif request.querystring("state") = "other" then

 sSQL="SELECT * FROM links_news WHERE country = 'other' ORDER BY siteTitle "

Else

 sSQL="SELECT * FROM links_news ORDER BY siteTitle "

End If
 
 
OR
 


Select case request.querystring("state")


 Case "uk"

   sSQL="SELECT * FROM links_news WHERE country = 'UK' ORDER BY siteTitle "

 Case "us"

   sSQL="SELECT * FROM links_news WHERE country = 'America' ORDER BY siteTitle "

 Case "ie"

   sSQL="SELECT * FROM links_news WHERE country = 'Ireland' ORDER BY siteTitle "

 Case "world"

   sSQL="SELECT * FROM links_news WHERE country = 'World' ORDER BY siteTitle "

 Case "other"

   sSQL="SELECT * FROM links_news WHERE country = 'other' ORDER BY siteTitle "

 ELSE

   sSQL="SELECT * FROM links_news ORDER BY siteTitle "


End Select


Edited by dfrancis - 26 October 2005 at 4:36pm
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pjb007 View Drop Down
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Points: 185 		Post Options Post Options   Thanks (0) Thanks(0)   Quote pjb007 Quote  Post ReplyReply Direct Link To This Post Posted: 26 October 2005 at 5:13pm
Thanks I went for the first one, excellent. Smile
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Gullanian View Drop Down
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Points: 4373 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gullanian Quote  Post ReplyReply Direct Link To This Post Posted: 26 October 2005 at 8:04pm
Second way is probably the better, select cases are more efficient.
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theSCIENTIST View Drop Down
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Points: 440 		Post Options Post Options   Thanks (0) Thanks(0)   Quote theSCIENTIST Quote  Post ReplyReply Direct Link To This Post Posted: 15 November 2005 at 6:52pm
Why all that code?

Why not this: 


Dim qState

qState = Trim(Request.QueryString("state"))



'// DB connection

'// Open a RecordSet



sSQL="SELECT * FROM links_news WHERE country = '" & qState & "' ORDER BY siteTitle "



Set RS = Conn.Execute(sSQL)



If RS.EOF Then Response.Write("Sorry mate, state not in our records or not recognised!")


By the way avoid using the (*) to select all columns, instead name the columns even if you want to retrieve all of them, the reason for this is that by specifying the (*) you force the database server to first enumerate all columns names in that table, then rebuild the query with it. This doesn't happen if you name the columns in the first place.
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MadDog View Drop Down
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Points: 3008 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MadDog Quote  Post ReplyReply Direct Link To This Post Posted: 16 November 2005 at 12:03am 
qState = Trim(Request.QueryString("state"))


should be (to prevent sql injection): 

qState = Replace(Request.QueryString("state"), "'", "''")
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