Use the DROP VIEW statement to remove a view or an object view from the database. You can change the definition of a view by dropping and re-creating it. The view must be in your own schema or you must have the DROP ANY VIEW system privilege. Specify the schema containing the view.
How do I delete a view in Oracle SQL?
The syntax for the DROP VIEW Statement in Oracle/PLSQL is: DROP VIEW view_name; view_name. The name of the view that you wish to drop.
How do I delete an existing view?
If you want to delete a SQL view, It is done by SQL DROP command you should use the following syntax: SQL DROP VIEW syntax: DROP VIEW view_name.
How do I edit view in SQL Developer?
The NVL function is used to handle null values, so that seems to be ok. You are already using an alias “department_name”. You can also use aliases for normal columns i.e.: select column_name as “alias” from table; You can also use “create or replace view …” to change an already existing view.
How do I delete an object in SQL Developer?
Right-click on the object in the diagram, right-mouse-click, ‘Delete View. ‘ This will remove it from the SubView ONLY. If you say ‘Delete Object,’ it will remove it from the model entirely.
Can we delete a view in SQL?
The fields in a view are fields from one or more real tables in the database. Yes we can insert,Update and delete, if a view is not complex. In SQL, a view is a virtual table based on the result-set of an SQL statement. … We can insert, update and delete a view.
Which command will delete a view?
A view is deleted with the DROP VIEW statement.
What is the syntax for delete the view Mcq?
What is syntax for delete the view? Explanation: The syntax is very simple and is given below : DROP VIEW view_name; 7. All NOT NULL columns from the base table must be included in the view in order for the INSERT query to function.
What is true view?
Explanation: VIEW is a virtual table, through which a selective portion of the data from one or more tables can be seen. A view do not contain data of their own.
How do I change the view in SQL?
To modify a view
- In Object Explorer, click the plus sign next to the database where your view is located and then click the plus sign next to the Views folder.
- Right-click on the view you wish to modify and select Design.
How do I edit a package in SQL Developer?
Using the Oracle SQL Deverloper, I right-click on the package name, choose “edit body”, then update the body.
How do I change the view in SQL Server Management Studio?
If you remember the CREATE VIEW SQL syntax, a view can be modified by simply using the ALTER VIEW keyword instead, and then changing the structure of the SELECT statement. Therefore, let’s change the previously created view with the CREATE VIEW SQL statement by using the ALTER VIEW statement.
How do you delete an object in SQL?
How to safely delete SQL database objects
- Open SQL Server Management Studio.
- Right click the object that is to be deleted and select the Delete option from the drop down list:
- In the Delete object dialog, click the Show dependencies button:
How do you delete an object from a database?
Deleting a Database Object
- Right-click a database object in Database Explorer and select Delete from the shortcut menu.
- In the new dialog box, click OK if you confirm the object’s deletion, or No to terminate it.
How do you delete something in a database?
Using SQL Server Management Studio
Select the Files page. In the Database files grid, select the file to delete and then click Remove.