OpenEdge Data Management: DataServer for Microsoft SQL Server

Adjusting values
Tuning your environment with the –Dsrv startup parameter
With the default size, approximately 6.5 open cursors and result sets per table can be established
at a given time before the maximum block memory area (PRGRS_TABLE_BLOCKSIZE) is
exceeded. At 10,000 bytes, 104 new block allocations can be established before the maximum
block memory (PRGRS_MAX_MBLOCKSIZE) is exceeded. If record sizes are large or the typical row
counts for your results sets are large, you can consider increasing one or both of these sizes.
Conversely, if record sizes are small or the typical row counts for your results are small, you can
consider decreasing theses sizes. Consider setting these tuning parameters based on your typical
requirements and then override them for specific queries that are the exceptions using the query
tuning option.
ODBC driver problems
The ODBC drivers use the Microsoft Windows DLL technology. A driver problem can leave
the driver’s DLL in an unstable state. In this case, the next attempt to connect to the driver might
fail with a GPF or with an unexpected error message. If this occurs, you might need to unload
the driver’s DLL by using Windows utilities or by restarting Windows.
In addition, drivers utilized by ODBC can get overlaid with incompatible DLL versions as other
products are installed on your system. You might need to reinstall ODBC drivers and products
if such incompatibilities occur.
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