Error 20534.Error Detected By Database Dll Crystal Reports: What It Means and How to Solve It
If you are using Crystal Reports with Visual Basic 6.0 or MS Access 97, you may encounter a runtime error 20534 that says "Error detected by database dll". This error can occur when you try to preview or print a report that uses a database connection. In this article, we will explain what this error means, what causes it, and how to fix it.
What is Error 20534.Error Detected By Database Dll Crystal Reports?
Error 20534.Error Detected By Database Dll Crystal Reports is a generic error message that covers a variety of problems related to the database connection used by the report. Some of the possible causes are:
- The report is not able to log on to the database. This can happen if the database has moved, the login credentials have changed, or the database driver is missing or outdated.
- The report has a mismatch between the database fields and the report fields. This can happen if the database structure has changed, the report has been modified, or the field mapping is incorrect.
- The report has too many fields or tables. This can happen if the report exceeds the limitations of the Crystal OCX control, which can only handle up to 48 fields or 8 tables per report.
- The report has no printable fields. This can happen if the report has no fields that can be displayed on the screen or printed on paper.
How to Fix Error 20534.Error Detected By Database Dll Crystal Reports?
The solution to Error 20534.Error Detected By Database Dll Crystal Reports depends on the cause of the problem. Here are some possible steps to try:
- Verify that the report can log on to the database. You can do this by opening the report in Crystal Reports designer and checking the database settings. You may need to update the database location, login credentials, or driver.
- Verify that the report matches the database structure. You can do this by opening the report in Crystal Reports designer and selecting Database Verify Database. If there are any changes in the database, you may need to update the report fields or re-map them.
- Reduce the number of fields or tables in the report. You can do this by opening the report in Crystal Reports designer and deleting any unnecessary fields or tables. You may also need to modify your selection formula or grouping options.
- Add some printable fields to the report. You can do this by opening the report in Crystal Reports designer and inserting some text objects, formulas, or summary fields that can be displayed on the screen or printed on paper.
If none of these steps work, you may need to upgrade your version of Crystal Reports or use a different reporting tool that is compatible with your database and application.
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 or MS Access 97. It indicates that there is a problem with the database connection used by the report. To fix this error, you need to identify the cause of the problem and apply the appropriate solution. Some of the possible causes and solutions are:
| The report is not able to log on to the database. |
| Verify and update the database settings in the report. |
| The report has a mismatch between the database fields and the report fields. |
| Verify and update the database structure in the report. |
| The report has too many fields or tables. |
| Reduce the number of fields or tables in the report. |
| The report has no printable fields. |
| Add some printable fields to the report. |
By following these steps, you should be able to resolve Error 20534.Error Detected By Database Dll Crystal Reports and generate accurate and reliable reports from your database. If you need more help, you can contact our support team or visit our website for more information.
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