Cognos 8 stores temporary files in the Cognos 8 install path/temp directory. The amount of space required by the temporary files directory depends upon several factors, including the number and type of reports created.
Here are a few of the possible error messages that could occur related to this issue:
QE-DEF-0177 An error occurred while performing operation 'sqlOpenResult'.
UDA-SQL-0114 The cursor supplied to the operation "sqlOpenResult" is inactive.
UDA-TBL-0004 There was a Write error while processing a temporary file.
If this error occurs, ensure that the disk on which the temporary files directory is located has adequate space. You should also periodically delete unwanted files from this directory.