1z0-909 MySQL 8.0 Database Developer Questions and Answers

Examine these statements which execute successfully:

The statements executed without exception. Which two are true?

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?

The variables c and d are declared as integer types.

Examine these initialization statements with placeholder value , which execute successfully:

Now, examine this loop which executes successfully:

Which loop results in the same value of d for all valid values of ?

A)

B)

C)

D)

What is an advantage of using mysqli in PHP programs rather than using PHP Data Objects (PDO)?

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?

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?