Database Certification Practice Exam Quiz
Test your knowledge and prepare for your database certification exam with this practice quiz. Please complete all questions below.
Full Name
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First Name
Last Name
Email Address
*
example@example.com
Certification Track / Exam Version
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Please Select
Oracle Database 19c Associate
Microsoft SQL Server 2019 Fundamentals
MySQL 8.0 Developer
PostgreSQL Professional
Other
Topic Area
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Please Select
SQL Fundamentals
Database Administration
Performance Tuning
Data Modeling
Security & Backup
Other
Experience Level
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Beginner
Intermediate
Advanced
Which SQL statement is used to retrieve data from a database table?
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SELECT
INSERT
UPDATE
DELETE
Which of the following is a valid PRIMARY KEY constraint usage?
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Ensures each row has a unique, non-null value
Allows duplicate values in a column
Automatically encrypts data
Links two tables together
Which command is used to permanently remove a table and all its data from a database?
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DROP TABLE
TRUNCATE TABLE
DELETE FROM
ALTER TABLE
Match the SQL clause with its correct purpose.
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Rows
Purpose
WHERE
Filters rows
Groups rows
Sorts rows
Limits results
GROUP BY
Filters rows
Groups rows
Sorts rows
Limits results
ORDER BY
Filters rows
Groups rows
Sorts rows
Limits results
LIMIT
Filters rows
Groups rows
Sorts rows
Limits results
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