최신 1Z0-909 무료덤프 - Oracle MySQL 8.0 Database Developer

문제1

Your program which uses a MySQL connector receives this error:
Client does not support authentication protocol request by server
The account running the program uses caching_sha2_password.
Which two resolve this conflict?

A. Disable TLS/SSL authentication.

B. Change the user account to use mysql_native_password.

C. Place this in the root directory of your shell account:
[mysqld] require__secure_transport=OFF

D. Upgrade the connector to a version that supports caching_sha2_password.

E. Use blank RSA or SSL certificates.

정답: B,D

문제2

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?

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

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

C. Replace line 2 With: Slink = mysql_xdevapi\getSession
("mysqlx://username:password@localhost:3306","schema");

D. Enable the mysqli extension in the php.ini file.

정답: D

문제3

Examine this statement and output:

Now, examine these desired output values:

Which statement updates the table data as require

A. UPDATE exam_result SET score=CEIL(TRUNCATE(sco

B. UPDATE exam_result SET score=CEIL(ROUND(score,1));

C. UPDATE exam_result SET score=TRUNCATE(score,1);

D. UPDATE exam_result SET score=ROUND(score,1);

E. UPDATE exam_result SET score=TRUNCATE

F. UPDATE examresult SET score=ROUND(CEIL(score

정답: D

문제4

Your session has sqi_mode set to default.
Examine this statement which executes successfully:

Now examine this statement:

Which two changes are required to the insert statement so that it inserts the correct data?
* std_id = 10301
* firstname = Mary
* lastname = O'Hagen
* birthdate = November 26, 1997
* reg_date = the current date

A. Change "O'Hagen" to "O\'Hagen".

B. Change " NULL " to NULL.

C. Change date () to CURRENT_TIMESTAMP () .

D. Change DATE () to DAY ().

E. Change " NULL " to ' NULL ' .

F. Change "O'Hagen" to 'o\'Hagen'.

정답: B,D

문제5

Examine this statement:
DECLARE not_found CONDITION FOR SQLSTATE '02000';
In which two statements can not found be used?

정답: A,D

문제6

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_1(credit,payment)

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

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)

정답: B

문제7

Which select statement returns true?

A. SELECT NULL := NULL;

B. SELECT NULL <> NULL;

C. SELECT NULL <=> NULL;

D. SELECT NULL = NULL;

정답: C

최신 1Z0-909 무료덤프 - Oracle MySQL 8.0 Database Developer

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