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MySQL 8.0 Database Developer Questions and Answers

Question 1

Examine these statements issued from Session 1 which execute successfully:

Now, examine this statement issued from Session 2:

What is the outcome of the update statement in Session 2?

Options:

The row will be updated immediately.

The statement will wait for the transaction in Session 1 to finish.

A deadlock will occur.

The transaction in Session 1 will be rolled back automatically.

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Question 2

Examine this statement and output:

CREATE TABLE geom (g GEOMETRY NOT NOLL, SPATIAL INDEX(g) ) ; Query OK, 0 rows affected, 1 warning (0.01 sec)

An attempt is made to add an SRID attribute to the column using the statement:

ALTER TABLE geom MODIFY COLUMN g geometry NOT NULL SRID 0;

Which is true?

Options:

An error is generated because srid o is an invalid identifier value.

Execution succeeds with a warning.

An error is generated because the index prevents changes to the column.

Execution succeeds and allows the use of the index by the optimizer.

Question 3

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:

Enable the mysqli extension in the php.ini file.

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

Replace line 2 With: Slink = mysql_xdevapi\getSession

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

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

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1z0-909 Exam Dumps : MySQL 8.0 Database Developer

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