Error 20534.error Detected By Database Dll Crystal Reports
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How to Fix Error 20534.Error Detected By Database Dll Crystal Reports
If you are using Crystal Reports with Visual Basic 6.0 and MS Access 97, you may encounter an error message that says \"Error 20534.Error Detected By Database Dll Crystal Reports\" when you try to print or preview a report. This error can be caused by various reasons, such as:
A problem in the query that the report is running
A mismatch between the database version and the Crystal Reports version
A missing or corrupted DLL file that Crystal Reports needs
A wrong or incomplete installation of Crystal Reports or MS Access
In this article, we will show you some possible solutions to fix this error and make your reports work again.
Solution 1: Verify the Database Connection
One of the most common causes of this error is a failure to connect to the database that the report is using. To verify the database connection, you can do the following steps:
Open the report in Crystal Reports Designer and go to Database Set Location.
Select the database that the report is using and click OK.
Go to Database Verify Database and click OK.
If you see a message that says \"The database file has changed. Proceeding to fix up the report.\", click Yes.
Save the report and try to run it again from Visual Basic.
If this does not solve the problem, you may need to check the database logon methods that your Visual Basic code is using. You can use either LogonServer or SetNthTableLogon methods to log on to the database from your code. Make sure that you provide the correct parameters for these methods, such as the server name, user name, password, and database name.
Solution 2: Update or Reinstall the DLL Files
Another possible cause of this error is a missing or corrupted DLL file that Crystal Reports needs to access the database. Some of the DLL files that are related to this error are P2BDDAO.DLL, P2CTDAO.DLL, and P2IRDAO.DLL. These files are located in the Windows\\System32 folder or in the folder where Crystal Reports is installed. To update or reinstall these files, you can do the following steps:
Download the latest version of these files from the SAP website or from a trusted source.
Copy these files to the Windows\\System32 folder or to the folder where Crystal Reports is installed.
Register these files by using the regsvr32 command in a command prompt window. For example, type regsvr32 P2BDDAO.DLL and press Enter.
Restart your computer and try to run your report again.
If this does not solve the problem, you may need to reinstall Crystal Reports or MS Access on your computer. Make sure that you have the compatible versions of these software for your database and operating system.
Solution 3: Check the SQL Query of the Report
A third possible cause of this error is a problem in the SQL query that the report is running. This can happen if you are using aliasing, joining, grouping, or filtering in your query. To check the SQL query of your report, you can do the following steps:
Open the report in Crystal Reports Designer and go to Database Show SQL Query.
Examine the SQL query and look for any errors or inconsistencies.
Try to simplify or modify your query if possible.
Save your report and try to run it again from Visual Basic.
If this does not solve the problem, you may need to contact your database administrator or a Crystal Reports expert for further assistance.
Conclusion
Error 20534.Error Detected By Database Dll Crystal Reports is a common error that can occur when using Crystal Reports with Visual Basic 6.0 and MS Access 97. This error can be fixed by verifying the database connection, updating or reinstalling the DLL files, or checking the SQL query of 061ffe29dd