Oracle Database Interview Question:

Can SELECT Statements Be Used on Views in Oracle?

Submitted by: Administrator

Select (query) statements can used on views in the same way as tables. The following tutorial exercise helps you creating a view and running a query statement on the view:

SQL> CREATE VIEW managed_dept AS
SELECT * FROM departments WHERE manager_id IS NOT NULL;
View created.

SQL> SELECT * FROM managed_dept WHERE location_id = 1700;
<pre>DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID LOCATION_ID
------------- -------------------- ---------- -----------
10 Administration 200 1700
30 Purchasing 114 1700
90 Executive 100 1700
100 Finance 108 1700
110 Accounting 205 1700</pre>
Submitted by: Administrator