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12th Grade Database Roles Quizzes, Questions & Answers

12th Grade

Recent Database Roles Quizzes

Oracle Database MCQ Quiz Model Test

Questions: 17 | Attempts: 2082 | Last updated: Mar 22, 2025

Sample Question
The employee table contains these columns: ID NUMBER(9) LAST_NAME VARCHAR2(25) FIRST_NAME VARCHAR2(25) COMMISSION NUMBER(7,2) You need to display the current commission for all employees. Desired results are: 1. Display the commission multiplied by 1.5 48 2. Exclude employees with zero commission. 3. Display a zero for employees with null commission value. Evaluate this SQL statement. SELECT id, last_name, first_name, commission*1. 5 FROM employee WHERE commission <>0; Which of the desired results does the statement provide?

All the desired results.

Two of the desired results.

One of the desired results

A syntax error.

Oracle Functions and Coding Quiz Questions

Questions: 14 | Attempts: 3182 | Last updated: Jun 22, 2025

Sample Question
Which of the following are attributes of /SQL*Plus?

/SQL*Plus is the Oracle proprietary interface for executing SQL statements.

/SQL*Plus commands are accesses from a browser.

/SQL*Plus commands are used to manipulate data in tables.

/SQL*Plus commands manipulate table definitions in the database.

Multiple Choice Quiz Questions Of Oracle

Questions: 30 | Attempts: 619 | Last updated: Mar 21, 2025

Sample Question
Which two statements are true about rebuilding an index? (Choose two.)

The resulting index may contain deleted entries.

A new index is built using an existing index as the data source.

Queries cannot use the existing index while the new index is being built.

During a rebuild, sufficient space is needed to accommodate both the old and the new index in their respective tablespaces.

Oracle Mock Test 2 (SQL +arch)

Questions: 23 | Attempts: 7040 | Last updated: May 10, 2025

Sample Question
Which SELECT statement should you use if you want to display unique combinations of the POSITION and MANAGER values from the EMPLOYEE table?

SELECT DISTINCT position, manager FROM employee;

SELECT position, manager DISTINCT FROM employee;

SELECT position, manager FROM employee;

SELECT position, DISTINCT manager FROM employee;

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