Multiple ADODB.Connection in vbScript - vbscript

Question

I have an array of database servers, and want to execute the same query for all of them in a loop.
But after the first iteration the I get following error :
- Error Number: 3704
- Description: Operation is not allowed when the object is closed
The code that I've implemented is:
Dim username
Dim password
Dim serverList(4)
serverList(0) = "ServerAddress0"
serverList(1) = "ServerAddress1"
serverList(2) = "ServerAddress2"
serverList(3) = "ServerAddress3"
'username and password are properly set
for counter = 0 to UBound(serverList)-1
Set connObj = CreateObject("ADODB.Connection")
Set rsObj = CreateObject("ADODB.Recordset")
connString = ..........
connObj.Open connString, username, password
'ERROR comes here, in second iteration.
sqlScript = "SELECT * FROM ......"
rsObj.open sqlScript, connObj
Do While Not rsObj.EOF
'record set is fetched.....
rsObj.MoveNext
Loop
'current connection is closed
rsObj.close
connObj.close
Next
Note: For the first iteration this code works perfectly. Error come for second iteration.

Answer 1

(0) Disable "On Error Resume Next" (if you use it)
(1) As UBound() returns the last index, not the size, change
for counter = 0 to UBound(serverList)-1
to
for counter = 0 to UBound(serverList)
(2) As it's possible that you messed up the connection string, publish real code for
connString = ..........
(3) As VBScript has Until change
Do While Not rsObj.EOF
to
Do Until rsObj.EOF
(4) As your recordset is named rsObj change
rsNice.MoveNext
to
rsObj.MoveNext
If you did construct the connection string properly, (4) is the cause of the error.

Answer 2

I just found the solution for this issue:
While iterating over the servers, I was also trying to close connection object for each connection.
......
rsObj.close
connObj.close
Next 'end of iteration over servers.
Now I moved the close statements out of the loop. i.e. while iterating let the objects be open.
......
Next 'end of iteration over servers.
rsObj.close
connObj.close
So, it was all related to the open/close state of the connection.