Reference Manual
CHAPTER 10. Database Error Messages
Adaptive Server Anywhere has many internal checks that have been designed to detect possible database corruption as soon as possible. If the database server prints an Assertion Failed message, you should not continue to use it before attempting to determine the cause. You should record the assertion number displayed on the screen and report the error to Adaptive Server Anywhere technical support.
The dbvalid utility is useful for determining if your database file is corrupt. You may find it necessary to reconstruct your data from backups and transaction logs (see Backup and Data Recovery).