Abstract: Techniques are disclosed relating to implementing a statement-level INSTEAD OF trigger. In one embodiment a computer system stores trigger information associated with a statement-level database trigger executable to initiate execution of at least one trigger instruction for a database instead of performing a particular database operation, on a database view, specified by a database operation statement. The computer system receives a first database operation statement specifying performance of the particular database operation on the database view and identifies a set of target rows, within the database view, targeted by the first database operation statement. In addition, the computer system generates a reference table associated with the database view, where the reference table includes rows corresponding to the target rows.

Abstract: Techniques are disclosed for handling database queries from multiple different application versions using a single database. A computer system executing a database management system (DBMS) may receive a database query for a database, where the database query is received from a particular version of an application having a plurality of versions. The database query may specify the particular version. The computer system may then identify catalog tables, where the catalog tables include version information columns storing version access information. The computer system may determine that version access information for the database query indicates that one or more database objects corresponding to the database query are accessible to the particular version of the application.

Abstract: Techniques are disclosed for handling database queries from multiple different application versions using a single database. A computer system executing a database management system (DBMS) may receive a database query for a database, where the database query is received from a particular version of an application having a plurality of versions. The database query may specify the particular version. The computer system may then identify catalog tables, where the catalog tables include version information columns storing version access information. The computer system may determine that version access information for the database query indicates that one or more database objects corresponding to the database query are accessible to the particular version of the application.