SQL & @error

[travish1 0]

Alright, I'm bashing my head in on this one. Can anyone give me a hint as to why @error isn't catching when an invalid server is provided?

Instead, the script quits and provides this error:

C:\Scripts\EEG Data Migration.au3 (284) : ==> The requested action with this object has failed.:

$sqlCon.Open($sqlConStr)

$sqlCon.Open($sqlConStr)^ ERROR

$sqlConStr = "DRIVER={SQL Server};SERVER=" & $strDbServer & ";DATABASE=MainExamDataDB;uid=TP;pwd=;"
$sqlCon = ObjCreate("ADODB.Connection")
$sqlCon.Open($sqlConStr)
If @error Then
$dbConnectError = MsgBox(48, "Error", "Failed to connect to the database, please verify the server.")
$sqlCon.Close
WinActivate("EEG Data Migration Parameters")
ControlFocus("EEG Data Migration Parameters", "", 5)
Else
queryStudiesToTransfer()
EndIf

Any help would be greatly appreciated!

[kylomas 411]

travish1,

You can use an error handler to process this kind of error...do a search on it.

kylomas

[travish1 0]

Thanks for the tip, kylomas. I had attempted the error handler. This worked well except that it would still throw an EOF error even when the DB connection was successful. The error is listed below.

$oErrorHandler = ObjEvent("AutoIt.Error", "objError")

err.number is: -2147352567

err.windescription:

err.description is: Either BOF or EOF is True, or the current record has been deleted. Requested operation requires a current record.

err.source is: ADODB.Recordset

My guess is that I'm getting this error because I haven't run a query; however, I'm hoping to have this as a separate function for establishing the database connection.

;Function to connect to database
Func dbConnect()
$sqlConStr = "DRIVER={SQL Server};SERVER=" & $strDbServer & ";DATABASE=MainExamDataDB;uid=TP;pwd=;"
$sqlCon = ObjCreate("ADODB.Connection")
$oErrorHandler = ObjEvent("AutoIt.Error", "objError")
$sqlCon.Open($sqlConStr)
If @error Then
$dbConnectError = MsgBox(48, "Error", "Failed to connect to the database, please verify the server.")
$sqlCon.Close
WinActivate("EEG Data Migration Parameters")
ControlFocus("EEG Data Migration Parameters", "", 5)
Else
queryStudiesToTransfer()
EndIf
EndFunc

Func objError($oError)
ConsoleWrite("err.number is: " & @TAB & $oError.number & @CRLF & _
"err.windescription:" & @TAB & $oError.windescription & @CRLF & _
"err.description is: " & @TAB & $oError.description & @CRLF & _
"err.source is: " & @TAB & $oError.source & @CRLF & _
"err.helpfile is: " & @TAB & $oError.helpfile & @CRLF & _
"err.helpcontext is: " & @TAB & $oError.helpcontext & @CRLF & _
"err.lastdllerror is: " & @TAB & $oError.lastdllerror & @CRLF & _
"err.scriptline is: " & @TAB & $oError.scriptline & @CRLF & _
"err.retcode is: " & @TAB & $oError.retcode & @CRLF & @CRLF)
$dbConnectError = MsgBox(48, "Error", "Failed to connect to the database, please verify the server." & @CRLF & @CRLF & "Error: " & $oError.number & @CRLF & "Description: " & $oError.description)
$sqlCon.Close
WinActivate("EEG Data Migration Parameters")
ControlFocus("EEG Data Migration Parameters", "", 5)
EndFunc

[kylomas 411]

travish1,

What are you doing in queryStudiesToTransfer()? You should be able to establish the connection anywhere, as long as the entire script has visibility to whatever variables are being used.

kylomas

[water 1,847]

A few tips:

• Put the ObjEvent statement to grab COM errors at the top of your script to make sure you grab all errors
• Move those WinActivate("EEG Data Migration Parameters"), queryStudiesToTransfer etc. statemtents out of function DBConnect. Like the name says the function should only connect to the DB
• No $sqlCon.Close is needed if $sqlCon.Open was not successfull