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String with commas, how to use instr and mid function in a loop?

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  #1  
Old August 20th, 2003, 11:15 AM
kellylei kellylei is offline
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Cool String with commas, how to use instr and mid function in a loop?
Hi,

I have a string --> 7,8,9,10. This string may contain more or less than 4 numbers.
I want to separate each number and run an sql query for each number.

for example:

select * from table1 where code = '7'

select * from table1 where code ='8'

and etc....

Can I do this in a loop? Any suggestions will be appreciated!!

Thanks
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  #2  
Old August 20th, 2003, 11:30 AM
Doug G Doug G is offline
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Something like this should work (untested!)
Code:
dim n1, n2, s1
n1 = 1
do
  n2 = instr(mystr, n1)
  if n2 < n1 then exit do  'no more pieces
  s1 = mid(mystr, n1, n2)  'you may need to adjust +- 1 to account for the commas
  'do your sql stuff here, s1 will hold the parsed value
  '
loop
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  #3  
Old August 20th, 2003, 11:43 AM
kellylei kellylei is offline
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Hi Doug,

umm, I'm a little lost here... I couldn't get the loop to run.

the n2 value is equal to 0.
Last edited by kellylei : August 20th, 2003 at 11:46 AM.
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  #4  
Old August 20th, 2003, 12:11 PM
Vlince Vlince is offline
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Why not use the IN keyword?

Just a thought!


<%
Dim str
Dim strSql

str = "2,3,4,5"

strSql = "SELECT * " & _
"FROM Table1 " & _
"WHERE code IN (" & str & ")
'FOR DEBUG ONLY
'Response.Write strSql & "<hr>"
'Response.End
%>

Hope this helps!
Sincerely

Vlince
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  #5  
Old August 20th, 2003, 12:29 PM
kellylei kellylei is offline
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Hi Vlince,

Thanks but I need to know exactly which code being selected. I need to compare the code in two tables.

If code 2 exist in Table1, I will not insert anything into Table1. If code 2 does not exist I will execute the insert statement.

Thanks for sharing your thoughts! Let me know if you have better idea.
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  #6  
Old August 20th, 2003, 12:43 PM
Vlince Vlince is offline
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AHHHHHHHHHHH...............ok

You know Kelly these informations would've been nice to know in your *first* post...

In that case, look at what's inside the attachment file...

Hope this helps!
Sincerely

Vlince
Attached Files
File Type: asp tmp2.asp (1.1 KB, 227 views)
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  #7  
Old August 20th, 2003, 02:22 PM
kellylei kellylei is offline
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Sorry, I tried to simplify my question so it won't be too difficult to understand.

I have tried the attached coding, but I got this error message.

Object required: ''

for line ---> Set objRst = objConn.Execute(strSql)

Is there something I should change to test this script?
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  #8  
Old August 20th, 2003, 02:29 PM
Vlince Vlince is offline
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Well the attachment file was to give you an idea of what to do NOT the exact working thing!

Did you create a connection object ?

In the example, I called it objConn

I even took the time to say/write:

'-----------------------------------------------------
'Open the connection object BEFORE entering the LOOP
'-----------------------------------------------------


So did you? I mean create the connection object?


Vlince
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  #9  
Old August 20th, 2003, 02:39 PM
kellylei kellylei is offline
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It works now!
I accidentally moved the line
set rs = Server.CreateObject("ADODB.Recordset") before the for loop.

Thank you so much! XOXO for you

I have never thought about the Split function. Thanks again.
Last edited by kellylei : August 20th, 2003 at 02:46 PM.
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  #10  
Old August 20th, 2003, 02:43 PM
Vlince Vlince is offline
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Wait a minute...
I never showed/told you to EXPLICITly declare a recordset object?

You're creating too much overhead inside the Loop each time you do:

Set rs = Server.CreateObject("ADODB.Recordset")

That's why I simply created an IMPLICIT recordset to avoid the overhead!

Humm...but if it works for you then I'm happy!


Oh and...can I share them(XOXO) with others?

Hope this helps!
Sincerely

Vlince
Last edited by Vlince : August 20th, 2003 at 02:48 PM.
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  #11  
Old August 20th, 2003, 03:05 PM
zimm zimm is offline
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Dang, Vlince stole my thunder. "Split" is one of the most useful (and easy to use as well) string functions in the whole VB library.

Beats the socks off of INSTR in most cases.
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  #12  
Old August 20th, 2003, 03:18 PM
unatratnag unatratnag is offline
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man, foreign guys get ALL the chicks, how can i compete? It's impossible...
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  #13  
Old August 20th, 2003, 03:37 PM
Vlince Vlince is offline
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ROTFLMAO...
Was drinking water and choked...got water coming out of my nose thanks to you...It hurts LOL

foreign guys! LOL good one

It's my "little more white skin color" from all the snow that works like a charm on girls...and my french of course!
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