What command removes triggers?
What command removes triggers?
Which statement is used to remove a trigger? Explanation: In order to delete a trigger, the DROP TRIGGER statement is used.
Can we DELETE a trigger in Oracle?
Use the DROP TRIGGER statement to remove a database trigger from the database. The trigger must be in your own schema or you must have the DROP ANY TRIGGER system privilege. To drop a trigger on DATABASE in another user’s schema, you must also have the ADMINISTER DATABASE TRIGGER system privilege.
How do you remove a trigger?
To delete a DML trigger
- In Object Explorer, connect to an instance of Database Engine and then expand that instance.
- Expand the database that you want, expand Tables, and then expand the table that contains the trigger that you want to delete.
- Expand Triggers, right-click the trigger to delete, and then click Delete.
How do you view the code of a trigger in Oracle?
Second, there is a simple query you can run to get the code for a trigger, it is: SELECT dbms_metadata. get_ddl(‘TRIGGER’, ‘TRIGGER_NAME’, ‘SCHEMA_NAME’) FROM DUAL; Just replace ‘TRIGGER_NAME’ with the actual name of your trigger.
Can we remove trigger if yes how?
You can remove a DML trigger by dropping it or by dropping the trigger table. When a table is dropped, all associated triggers are also dropped.
Can a trigger written for a view?
Yes you can write triggers on views.
How do you create a trigger delete in Oracle?
CREATE TABLE orders ( order_id number(5), quantity number(4), cost_per_item number(6,2), total_cost number(8,2) ); We could then use the CREATE TRIGGER statement to create an BEFORE DELETE trigger as follows: TIP: When using SQLPlus, you need to enter slash on a new line after the trigger.
How can we view all the triggers currently in the database?
SHOW TRIGGERS lists the triggers currently defined for tables in a database (the default database unless a FROM clause is given).
How do I see triggers in SQL Developer?
If you want to see the code of the trigger body, then the best way is probably to right-click on the trigger and select Single Record View from the pop-up menu.
Which column in the User_triggers data dictionary view shows that the trigger in a PL SQL triggers Type column Action_type column Data_type column none of these?
The ACTION_TYPE column of the USER_TRIGGERS data dictionary view shows that the trigger is a PL/SQL trigger.
How do I delete a sequence in Oracle?
The syntax to a drop a sequence in Oracle is: DROP SEQUENCE sequence_name; sequence_name. The name of the sequence that you wish to drop.
What happens when a trigger is associated with a view?
By using INSTEAD OF triggers, we can change the behavior of INSERT, UPDATE and DELETE statements for a given view. In other words, we can perform certain validations before making a change to the data. With the combination of a view and a trigger you can create row and cell level security on tables.
How to disable and enable triggers in Oracle?
DML statements are executed ( INSERT,UPDATE,DELETE) against an associated table
How to use instead of for trigger in Oracle?
Row Triggers and Statement Triggers. A row trigger is fired each time the table is affected by the triggering statement.
How do you delete trigger?
You can remove a DML trigger by dropping it or by dropping the trigger table. When a table is dropped, all associated triggers are also dropped. When a trigger is dropped, information about the trigger is removed from the sys.objects , sys.triggers and sys.sql_modules catalog views.
How do I create an oracle trigger?
A data manipulation language (DML) statement executed against a table e.g.,INSERT,UPDATE,or DELETE.