Odbc Error Trapping Vba Excel
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Ms Access Vba Error Handling Example
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Vba Runtime Error -2147467259 (80004005)
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Vba Error Handling Best Practices
vote 2 down vote favorite I am doing an excel macro in order to automate some query what eventually I run in SQL Server. My problem is that I don't know how the server could alert excel if a query did not succeed. For example, I am importing a file, and there is no syntax error, but it might result in error if bulk insert statement is not set vba runtime error automation error properly. For the SQL connection I use the following: Dim conn As ADODB.Connection Dim rs As ADODB.Recordset Dim sConnString As String ' Create the connection string. sConnString = "Provider=SQLOLEDB;Data Source=localhost;" & _ "Initial Catalog=" & MyDatabase & ";" & _ "Integrated Security=SSPI;" ' Create the Connection and Recordset objects. Set conn = New ADODB.Connection Set rs = New ADODB.Recordset conn.Open sConnString Set rs = conn.Execute(Myquery) If I have a syntax error while compiling the code it stops which is good. But if I have another problem, e. g. the database name is not good, the table already exists, then the program runs with no error, I only can detect when I check it in SQL Server. I really want to know somehow whether the query run has resulted in error and then code some alerting message then into my macro. How can I do that? Every help is much appreciated! sql-server excel vba excel-vba share|improve this question edited Jun 26 '15 at 14:33 marc_s 454k938711033 asked Jun 26 '15 at 13:55 Gergő Barta 195 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote The ADO connection object has an Errors collection, which you can check after running your SQ
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three flavors: compiler errors such as undeclared variables that prevent your code from compiling; user data entry error such as a user entering a negative value where only a positive number is acceptable; and run time errors, that occur when VBA cannot correctly execute a program http://www.cpearson.com/excel/errorhandling.htm statement. We will concern ourselves here only with run time errors. Typical run time errors include attempting https://www.experts-exchange.com/questions/28178516/VBA-Code-Runs-Error-Handler-with-Error-Number-0.html to access a non-existent worksheet or workbook, or attempting to divide by zero. The example code in this article will use the division by zero error (Error 11) when we want to deliberately raise an error. Your application should make as many checks as possible during initialization to ensure that run time errors do not occur later. In Excel, this includes ensuring that required workbooks and error handling worksheets are present and that required names are defined. The more checking you do before the real work of your application begins, the more stable your application will be. It is far better to detect potential error situations when your application starts up before data is change than to wait until later to encounter an error situation. If you have no error handling code and a run time error occurs, VBA will display its standard run time error dialog box. While this vba error handling may be acceptable, even desirable, in a development environment, it is not acceptable to the end user in a production environment. The goal of well designed error handling code is to anticipate potential errors, and correct them at run time or to terminate code execution in a controlled, graceful method. Your goal should be to prevent unhandled errors from arising. A note on terminology: Throughout this article, the term procedure should be taken to mean a Sub, Function, or Property procedure, and the term exit statement should be taken to mean Exit Sub, Exit Function, or Exit Property. The term end statement should be taken to mean End Sub , End Function, End Property, or just End. The On Error Statement The heart of error handling in VBA is the On Error statement. This statement instructs VBA what to do when an run time error is encountered. The On Error statement takes three forms. On Error Goto 0 On Error Resume Next On Error Goto
for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > VBA Code Runs Error Handler with Error Number 0 Want to Advertise Here? Solved VBA Code Runs Error Handler with Error Number 0 Posted on 2013-07-08 MS Access Visual Basic Classic 2 Verified Solutions 5 Comments 3,150 Views Last Modified: 2013-07-09 Hello, I have a function that gets called to make a DSNLess ODBC Connection to SQL Server to connect my linked Tables. My code runs fine however My Error handler gets ran with Error Number 0. After Research i find out that Error 0 means the code ran successfully so im at a loss as to why it gets thrown into my Error Handler. As you can see in below code, i have an Exit Region with a Exit Function Statement before the Error handler which will prevent it from running on an every time occasion. Any Assistance will be appreciated as i'm not sure what Causes this. Also Just adding an if statement or select case statement to skip if it is Error 0 is not a preferable answer. I know about these solutions, however, my boss would like to know why its happening in the first place The Error occurs in the AttachDSNLessTable Function which is called by the DSNLessConnect Function '//Name : AttachDSNLessTable '//Purpose : Create a linked table to SQL Server without using a DSN '//Parameters '// stLocalTableName: Name of the table that you are creating in the current database '// stRemoteTableName: Name of the table that you are linking to on the SQL Server database '// stServer: Name of the SQL Server that you are linking to '// stDatabase: Name of the SQL Server database that you are linking to '// stUsername: Name of the SQL Server user who can connect to SQL Server, leave blank to use a Trusted Connection '// stPassword: SQL Server user password '//Important Notes '//There are two tables in the front end, these tables contain the server side name and linked name of all SQL Tables linked '//to database, one is the primary table pointing to the primary server, the other is a secondary server in the event the primary is down '//the tables links are refreshed every time the FE Loads, if tables are added or removed the appropriate changes need to be noted '//in the two table