MySQL Events Quiz – Answertopia

This quiz will test your understanding of MySQL Events, including how to create, modify, and manage scheduled tasks using SQL commands. Answer the following questions to see how well you understand MySQL Events and their applications.

What is the default execution frequency for MySQL events?

Once per week

Once per hour

Once per day

They do not repeat unless explicitly specified

None

Which command is used to remove a scheduled event permanently?

DELETE EVENT event_name;

DROP EVENT event_name;

DISABLE EVENT event_name;

REMOVE EVENT event_name;

None

Which MySQL privilege is required to create events?

EVENT

TRIGGER

SUPER

SCHEDULE

None

Which function can be used to schedule an event relative to the current time?

GETDATE()

NOW()

CURRENT_TIMESTAMP

CURRENT_TIME

None

What is the correct syntax to enable the MySQL event scheduler?

START EVENT SCHEDULER;

SET GLOBAL event_scheduler = ON;

ALTER DATABASE ENABLE EVENT;

ENABLE EVENT SCHEDULER;

None

What is the primary purpose of MySQL events?

To monitor and log database queries

To execute SQL statements at specified times or intervals

To enforce data integrity in MySQL tables

To execute code automatically in response to table modifications

None

Which MySQL clause is used to specify an end time for a recurring event?

STOP AT

ENDS

UNTIL

LIMIT

None

How do you create a recurring MySQL event that runs every day?

CREATE EVENT task_name ON SCHEDULE EVERY 1 DAY DO sql_statement;

CREATE EVENT task_name RUN EVERY 1 DAY DO sql_statement;

CREATE RECURRING EVENT task_name DO sql_statement;

CREATE EVENT task_name EVERY DAY STARTS NOW() DO sql_statement;

None

How do MySQL events differ from triggers?

Triggers run at scheduled intervals, while events run immediately

Events can only be executed manually, while triggers execute automatically

Events only apply to a single table, while triggers apply to multiple tables

Events execute based on a time schedule, while triggers execute in response to table events

None

10.

Which SQL statement is used to create a MySQL event?

CREATE EVENT

NEW EVENT

SCHEDULE EVENT

INSERT EVENT

None

11.

How do you disable an event without deleting it?

ALTER EVENT event_name DISABLE;

DELETE EVENT event_name;

DROP EVENT event_name;

REMOVE EVENT event_name;

None

12.

What happens when the MySQL event scheduler is turned off?

Events will run once and then stop

Scheduled events will not execute

Events will execute but not update data

All events will be deleted

None

13.

How do you modify an existing event in MySQL?

MODIFY EVENT event_name

CHANGE EVENT event_name

ALTER EVENT event_name

UPDATE EVENT event_name

None

14.

How do you prevent an event from being automatically deleted after execution?

Disable the `event_scheduler` global variable

Use `ENABLE EVENT` after creation

Store the event name in a separate table

Use `ON COMPLETION PRESERVE` in the `CREATE EVENT` statement

None

15.

Which global variable controls the execution of MySQL events?

event_scheduler

event_handler

mysql_event

schedule_event

None

16.

Which statement retrieves a list of all scheduled events?

LIST EVENTS;

SHOW EVENTS;

SELECT * FROM mysql.events;

DESCRIBE EVENTS;

None

17.

Which command retrieves the full definition of an event?

SELECT * FROM information_schema.events WHERE event_name = ‘event_name’;

SHOW EVENT event_name;

DESCRIBE EVENT event_name;

SHOW CREATE EVENT event_name;

None

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