Search results
Results From The WOW.Com Content Network
The following is an Oracle syntax example of a row level trigger that is called AFTER an update FOR EACH ROW affected. This trigger is called on an update to a phone book database. When the trigger is called it adds an entry into a separate table named phone_book_audit.
If the trigger is created on a schema or the database, then the triggering event is composed of either DDL or database operation statements, and the trigger is called a system trigger. An INSTEAD OF trigger is either: A DML trigger created on a view or a system trigger defined on a CREATE statement.
In relational databases, the log trigger or history trigger is a mechanism for automatic recording of information about changes inserting or/and updating or/and deleting rows in a database table. It is a particular technique for change data capturing , and in data warehousing for dealing with slowly changing dimensions .
The mixing and embedding of triggers and stored procedures was one of the breakthrough points up to support the use of PL/SQL in a OO paradigm. [6] The inclusion in the SQL syntax of statements such as [class].[object] , and the implementation of the object type [ 7 ] (like any OO language), completed the minimum requisites to a mapping ...
Oracle Forms 3 was the first version to allow PL/SQL to be used within Forms triggers and procedures/SQL Functions could also be used as an undocumented feature. Forms 3 was a character mode application and was primarily used in terminals such as Digital VT220 and PCs running Microsoft DOS.
Stein’s victory coattails will help. Cooper limited his time out of the state because he was worried that Robinson might use legislative tricks to seize power as acting governor.
In this approach, triggers log events that happen to the transactional table into another queue table that can later be "played back". For example, imagine an Accounts table, when transactions are taken against this table, triggers would fire that would then store a history of the event or even the deltas into a separate queue table.
Kurt the CyberGuy walks through steps he recommends immediately taking after getting new electronics — like phones or TVs — as gifts this holiday season.