There is no room to open additional query control blocks. A user may open up to 50 queries at one time. The actual number of queries open at one time depends on the complexity of the queries. Try rewriting your program so that it is not necessary to hold so many queries open at the same time. In server versions, use the XDB Server Configuration utility to increase the number of available query control blanks.
Restriction: This topic applies to Windows environments only.
