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MySQL 8.0 Database Developer

Last Update 18 hours ago Total Questions : 65

The MySQL 8.0 Database Developer content is now fully updated, with all current exam questions added 18 hours ago. Deciding to include 1z0-909 practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our 1z0-909 exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these 1z0-909 sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any MySQL 8.0 Database Developer practice test comfortably within the allotted time.

Question # 4

Which two are true about MySQL Document Store?

A.

It helps to store data items in a schema-less key-value store.

B.

It can store documents greater than 4 GB.

C.

It depends heavily on strictly typed data.

D.

It allows one to bypass the SQL layer of the server.

E.

There is no access to relational tables.

Question # 5

Examine the structure of the emp table:

Examine the structure of the emp_vu1 view based on the emp table:

Now, examine this statement:

mysq1 > INSERT INTO emp_vul VALUES ( ' Alice ' ,20000) ;

What is true about executing the statement?

A.

It inserts a row in the emp table.

B.

It returns an error because an insert operation is not allowed on views.

C.

It inserts a row in the view only.

D.

It returns an error because the PRIMARY ACCOUNT column is not selected for the view definition.

Question # 6

The meeting table stores meeting schedules with participants from five continents. The participants ' details are stored in another table.

You need to adjust the start_time and duration columns for optimal storage. What datatype changes would achieve this?

A.

start_time TIMESTAMP duration TIMESTAMP

B.

start_time TIMESTAMP duration TIME

C.

start_time DATETIME duration DATETIME

D.

start_time TIME duration TIME

E.

start__time DATETIME duration TIME

Question # 7

Examine this statement and output:

What causes the error?

A.

The engine is disabled.

B.

The set local_infile option has not been enabled.

C.

The database user does not have sufficient privilege.

D.

The database server process does not have sufficient privilege.

E.

The database client process does not have sufficient privilege.

F.

The database server is running in read-only mode.

Question # 8

Examine the appointments table definition which contains one million rows:

Now, examine this statement which executes successfully:

Which statement will improve query performance?

A.

ALTER TABLE appointments add index IX_4 < attendant_id, payment, credit)

B.

ALTER TABLE appointments add index IX_1(credit,payment)

C.

ALTER TABLE appointments add index IX_2(attendant_session_id, created_by)

D.

ALTER TABLE appointments add index IX_3(attendant_id, created_by)

Question # 9

Examine this statement which executes successfully:

SET @ir := 2;

Which query updates the value of @r to 0?

A.

SELECT ' Car ' REGEXP( ' Ca? ' ) > = 0 INTO @r;

B.

SELECT STRCMP(‘Car ' /Ca? ' ) > = 0 INTO @r;

C.

SELECT ' Car ' LIKE ' Ca? ' INTO @r;

D.

SELECT ' Car ' RLIKE ' Ca? ' INTO @r;

Question # 10

Examine these commands and output:

Which is true?

A.

Existing emp_vuL is dropped and a new emp_vu1 created with the new definition.

B.

A new view is created because the previous was dropped on execution of the drop table statement.

C.

It returns an error because the CREATE TABLE statement automatically recreated the view.

D.

It returns an error because the DROP TABLE statement did not drop the view.

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