SAP Knowledge Base Article - Public

1339862 - Reports slow to render with multiple subreports and Native Oracle driver


  • Using the Crystal Reports Server Embedded 2008 components for Visual Studio .NET to render reports.
  • Connecting to Oracle database using Crystal Reports native Oracle driver.
  • Exporting a report to PDF using the Visual Studio .NET components takes more than 2 hours to complete. 
  • Exporting the same report to PDF in the Crystal Reports 2008 designer takes about 9 minutes as expected.


  • Crystal Report Server Embedded 2008
  • Oracle 10.x
  • Oracle 11.x

Reproducing the Issue

  • There are several subreports.
  • Removing any one subreport resolves the issue.
  • Adding it back in slows the export to PDF again.


  • There is a known issue with the native Oracle driver, crdb_oracle.dll.
  • The issue has been identified and logged under Problem Report ID ADAPT1197989.


This issue has been addressed in Service Pack 2 for Crystal Reports Server Embedded 2008.


Oracle native; CRSE 2008;PDF; slow report export; ReportDocument, vsnet, vbnet c# csharp, net , KBA , BI-DEV , Business Intelligence Software Development Kits (SDKs) , Problem


Crystal Reports Server 2008 V1, OEM edition