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1z0-909 MySQL 8.0 Database Developer Questions and Answers

Questions 4

Examine these commands which execute successfully in the sequence shown in Sessions S1 and S2:

Now, examine this statement that execute successfully in s1:

S1> SELECT * FROM emp;

Which is true about the result of the select statement?

Options:

A.

The inserted row is returned because the transaction is auto committed in S2.

B.

The inserted row is not returned because the isolation level is READ COMMITTED in S2.

C.

The inserted row is not returned because the transaction still active in s2.

D.

The inserted row is returned because the isolation level is RPEATABLE READ in S1.

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Questions 5

The continent column in the country table contains no null values.

Examine this output:

A)

B)

C)

D)

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Questions 6

Which two are true about MySQL connectors?

Options:

A.

Connectors must be installed on both the client and server hosts.

B.

Connector/J is based on Connector/C.

C.

Connector/ODBC is available on Unix, Windows, and MacOS X.

D.

Connector/NET runs on the Windows platform only.

E.

Connector/Python is released in precompiled binary and source code.

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Questions 7

Examine the Test.php script which is numbered for clarity, and its output:

PHP Fatal error: Uncaught Error: call to underined function mysqli_connect () in Test.php:2

Which action will fix this error?

Options:

A.

Enable the mysqli extension in the php.ini file.

B.

Replace line 2 with Slink = mysql.connect {"localhost: 3306n, "username", "pas "schema") ;

C.

Replace line 2 With: Slink = mysql_xdevapi\getSession

("mysqlx://username:password@localhost:3306","schema");

D.

Install the PHP executable in the path used by the MySQL installation.

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Questions 8

Examine these commands and output:

Which is true about the execution of the insert statement?

Options:

A.

It returns an error.

B.

It inserts a row in the view and base table.

C.

It inserts a new row in the base table only.

D.

It inserts a new row in the view only.

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Questions 9

Examine these statement which execute successfully:

Now, examine this desired output:

Which two queries will produce the out?

A)

B)

C)

D)

E)

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

E.

Option E

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Exam Code: 1z0-909
Exam Name: MySQL 8.0 Database Developer
Last Update: Jun 15, 2025
Questions: 65
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