User`s guide

requests through thread-safe database drivers, the Report Engine can process all of the requests
simultaneously. As the result, you'll be able to view your reports sooner.
The following generic database drivers are thread-safe:
• crdb_odbc.dll (ODBC)
• crdb_jdbc.dll (JDBC)
• crdb_ado.dll (OLE DB)
ODBC connections to the following database types assume that the ODBC database driver is also
thread-safe and, therefore, operate in a multi-threaded manner:
• Microsoft SQL Server
• Oracle
• DB2
• Teradata
• Sybase
Note:
It is also assumed that the database drivers used with JDBC and OLE DB are always thread-safe and,
therefore, always operate in a multi-threaded manner.
The following native database drivers are thread-safe:
• crdb_ado_plus.dll (ADO.NET data provider)
• crdb_com.dll (COM data provider)
• crdb_db2cli.dll (DB2 Unicode)
• crdb_javabean (Java Bean data provider)
• crdb_xml (XML)
• crdb_olap.dll (OLAP)
• crdb_oracle.dll (Oracle)
• crdb_p2ssby10.dll (Sybase)
Note:
Check the Release Notes in the Crystal Reports product distribution for updates to these lists; more
database drivers may be added if they are found to be thread-safe during testing.
6.4.5 Using stored procedures for faster processing
2012-03-14118
Designing Optimized Web Reports