In this blog post, you’ll learn more about the Sybase Error Cannot update or delete an all-NULL row from table ‘%1’ and the reason for receiving this error
Sybase SQL Error Message
Cannot update or delete an all-NULL row from table ‘%1’
Reason for this Error
You attempted to modify or delete a row in the specified table, which is part of the NULL-supplying side of an outer join. However, the cursor is currently positioned on a derived row that contains an all-NULL row for this table, which is the result of the failure of one or more ON conditions to evaluate to TRUE. Verify that the UPDATE or DELETE statement is correct.