Oracle 1Z0-909 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 1Z0-909
Exam Name/Title: MySQL 8.0 Database Developer
Certification Provider: Oracle
Corresponding Certification: MySQL Developer

Exam Questions: 66
Updated On: Jul 07, 2026

Question #8

Examine the layout of the my_values table.

Examine the data in the my_value3 table.

Examine this statement:

A. Option B

B. Option D

C. Option C

D. Option A

Discussion 0

Correct Answer: A Vote an answer

Question #9

You must reclaim memory used by a prepared statement named prep. Which two achieve this?

A. SET @a = ''; EXECUTE prep USING @a;

B. DEALLOCATE PREPARE prep?

C. DROP PROCEDURE prep;

D. PREPARE prep FROM '';

E. DROP PREPARE prep;

F. SET @prep = NULL;

Discussion 0

Correct Answer: C,F Vote an answer

Question #10

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. Upgrade the connector to a version that supports caching_sha2_password.

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. Use blank RSA or SSL certificates.

E. Disable TLS/SSL authentication.

Discussion 0

Correct Answer: A,B Vote an answer

Question #11

Examine this statement:

A. Inserting COMMIT; SET @m :=: before line 4

B. user who creates the procedure needing the create routine privilege

C. Inserting DEFINER 'username '@' localhost' clause into the CREATE PROCEDURE statement

D. inserting USE <database >; before line 3

E. user who creates the procedure needing the create and execute privileges

Discussion 0

Correct Answer: C Vote an answer

Question #12

Examine these commands and output:

Which is true?

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

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

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

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

Discussion 0

Correct Answer: A Vote an answer

Question #13

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 view only.

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

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

D. It inserts a row in the emp table.

Discussion 0

Correct Answer: D Vote an answer

Question #14

Which two are true about indexes?

A. Indexing all of a table's columns improves performance.

B. Indexes reduce disk space used.

C. Secondary index access will always be faster than a table scan.

D. Indexes contain rows sorted by key values.

E. Indexes are used to enforce unique constraints.

Discussion 0

Correct Answer: A,B Vote an answer

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