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.

Which SQL statement is used to create a MySQL event?

SCHEDULE EVENT

INSERT EVENT

NEW EVENT

CREATE EVENT

None

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

Disable the `event_scheduler` global variable

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

Store the event name in a separate table

Use `ENABLE EVENT` after creation

None

Which MySQL privilege is required to create events?

TRIGGER

EVENT

SCHEDULE

SUPER

None

Which command retrieves the full definition of an event?

DESCRIBE EVENT event_name;

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

SHOW CREATE EVENT event_name;

SHOW EVENT event_name;

None

How do you modify an existing event in MySQL?

CHANGE EVENT event_name

MODIFY EVENT event_name

UPDATE EVENT event_name

ALTER EVENT event_name

None

How do you disable an event without deleting it?

REMOVE EVENT event_name;

DROP EVENT event_name;

ALTER EVENT event_name DISABLE;

DELETE EVENT event_name;

None

What is the default execution frequency for MySQL events?

They do not repeat unless explicitly specified

Once per hour

Once per week

Once per day

None

What is the primary purpose of MySQL events?

To execute SQL statements at specified times or intervals

To execute code automatically in response to table modifications

To enforce data integrity in MySQL tables

To monitor and log database queries

None

What happens when the MySQL event scheduler is turned off?

Events will execute but not update data

All events will be deleted

Scheduled events will not execute

Events will run once and then stop

None

10.

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

LIMIT

UNTIL

STOP AT

ENDS

None

11.

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

SET GLOBAL event_scheduler = ON;

ALTER DATABASE ENABLE EVENT;

START EVENT SCHEDULER;

ENABLE EVENT SCHEDULER;

None

12.

Which command is used to remove a scheduled event permanently?

DROP EVENT event_name;

DISABLE EVENT event_name;

REMOVE EVENT event_name;

DELETE EVENT event_name;

None

13.

How do MySQL events differ from triggers?

Triggers run at scheduled intervals, while events run immediately

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

Events can only be executed manually, while triggers execute automatically

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

None

14.

Which global variable controls the execution of MySQL events?

schedule_event

event_handler

event_scheduler

mysql_event

None

15.

Which statement retrieves a list of all scheduled events?

SELECT * FROM mysql.events;

LIST EVENTS;

DESCRIBE EVENTS;

SHOW EVENTS;

None

16.

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

CREATE EVENT task_name RUN EVERY 1 DAY DO sql_statement;

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

CREATE RECURRING EVENT task_name DO sql_statement;

CREATE EVENT task_name ON SCHEDULE EVERY 1 DAY DO sql_statement;

None

17.

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

NOW()

GETDATE()

CURRENT_TIME

CURRENT_TIMESTAMP

None

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