What number will the following query in the HAPPY INSURANCE database return?
SELECT count (DISTINCT column_name)
FROM user_tab_columns;
A)2
B)3
C)10
D)13

Question

Quizplus · Accepted Answer

The query will return the count of distinct column names in the table "user_tab_columns". Since it is a database for an insurance company, there are likely to be many tables and columns in the database. Therefore, it is reasonable to expect that the count of distinct column names will be more than 10 or even 13. Hence, the best choice is D, which is the highest option provided.

What Number Will the Following Query in the HAPPY INSURANCE