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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which query will find rows in a table that have no counterpart in another table?

A) SELECT *FROM table1 INNER JOIN table2 ON table1.id=table2.id WHERE table1.id=! table2.id;
B) SELECT t1.name, t2.name2FROM employee t1 INNER JOIN info t2 WHERE t1.name=t2.name;
C) SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;
D) SELECT t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;

2. Which statement would you use to remove the population column from the city table?

A) ALTER TABLE city LESS population;
B) ALTER TABLE city DELETE population;
C) DROP population FROM city;
D) ALTER TABLE city DROP population;
E) DELETE population FROM city;

3. Which two statements about the download of MySQL Enterprise Backup are correct?

A) MySQL Enterprise Backup comes with MySQL Connector and is freely available for download.
B) MySQL Enterprise Backup can be downloaded from My Oracle Support (MOS).
C) MySQL Enterprise Backup is a separate package from MySQL Enterprise Edition. It can be downloaded from https://edelivery.oracle.com.
D) MySQL Enterprise Backup comes with all MySQL editions including community edition.
E) MySQL Enterprise Backup comes with MySQL Utilities Package, which is available for download publicly on http://www.mysql.com.

4. What are two ways in which customers can receive notifications such as outages, configuration changes, database emergencies, and other information on their Database as a Service instances?

A) SMS-notification tab on the dashboard
B) Application-to-application messaging
C) Direct support call from an Oracle representative
D) Browser pop-ups
E) Email

5. What three are ways to export and import data in MySQL Workbench?

A) Backup Data Export and Import Wizard
B) Result Data Export and Import
C) Table Data Export and Import Wizard
D) SQL Data Export and Import Wizard
E) Binary Data Export and Import Wizard
F) Data Modeling Import Export Wizard

Solutions: