Oracle Database Interview Question:

How To Select Some Columns from a Table in Oracle?

Submitted by: Administrator

If you want explicitly tell the query to some columns, you can specify the column names in SELECT clause. The following select statement returns only two columns from the table "departments":

SQL> SELECT location_id, department_name FROM DEPARTMENTS;
<pre>LOCATION_ID DEPARTMENT_NAME
----------- ------------------------------
1700 Administration
1800 Marketing
1700 Purchasing
2400 Human Resources
1500 Shipping
1400 IT
2700 Public Relations
2500 Sales
1700 Executive
......</pre>
Submitted by: Administrator