ASA SQL User's Guide
Accessing Remote Data
Troubleshooting remote data access
The case sensitivity setting of your Adaptive Server Anywhere database should match the settings used by any remote servers accessed.
Adaptive Server Anywhere databases are created case insensitive by default. With this configuration, unpredictable results may occur when selecting from a case sensitive database. Different results will occur depending on whether ORDER BY or string comparisons are pushed off to a remote server or evaluated by the local Adaptive Server Anywhere.