[Q35-Q51] View 1z1-909 Exam Question Dumps With Latest Demo [May 22, 2023]

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View 1z1-909 Exam Question Dumps With Latest Demo [May 22, 2023]

Free 1z1-909 Test Questions Real Practice Test Questions

The Oracle 1z1-909 exam covers a range of topics that include database architecture, data modeling, normalization, indexing, stored procedures, triggers, and transactions. The exam is designed to test the candidate’s ability to work with MySQL 8.0 databases, including designing, implementing, and maintaining databases of various sizes and complexities. The exam also covers advanced topics such as performance tuning, replication, and backup and recovery. The certification demonstrates the candidate’s ability to develop efficient and scalable MySQL 8.0 databases, making them a valuable asset to any organization that uses MySQL 8.0.

During the Oracle 1z1-909 certification exam, candidates are tested on a variety of topics related to MySQL 8.0 database development. This includes understanding how to install and configure MySQL, designing database schemas, and creating tables and indexes. Candidates must also be proficient in using SQL to retrieve, manipulate, and analyze data, as well as in writing stored procedures and triggers. Additionally, candidates must have an understanding of database security and performance optimization.

NO.35 Examine these statements which execute successfully:

The statements executed without exception. Which two are true?

No transaction commits.

One row is inserted into band.

Two transactions commit.

No row is inserted into band.

The transaction is rolled back to the savepoint.

NO.36 Examine this table definition:

The table must always remain a valid document store collection. What restriction does this impose on any added column?

The column must be a generated column referencing any attribute of doc.

The column must have a default value.

The column must be used in a unique constraint.

The column must be a generated column referencing only an existing attribute of doc.

The column must be indexed.

NO.37 The variables c and d are declared as integer types.
Examine these initialization statements with placeholder value <p1>, which execute successfully:
Now, examine this loop which executes successfully:

Which loop results in the same value of d for all valid values of <p1>?
A)

B)

C)

Option A

Option B

Option C

Option D

NO.38 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?

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.

NO.39 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?

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

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

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

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

NO.40 Examine this statement and output:

Which will provide the same level of detail when the error is encountered within a stored routine?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

NO.41 A server hosts MySQL Server and Apache Webserver supporting a PHP/PDO based application.
The application must be migrated from PHP to their Java application server on another host. The MySQL instance remains on the original host.
Examine the PDO connection string used in the existing application:
Mysql:host-localhost;dbname=sales;unix_socket=/var/run/mysql.sock
Which two prevent Java from using the Unix socket?

The X Dev API protocol must be enabled to use sockets in Connector/J driver.

The socket is not implemented in Connector/J driver.

The socket can only be accessed from the local host.

socket is a reserved word in Java.

Java treats the socket file as insecure.

NO.42 The employee table includes these columns:
e_id INT, e_name VARCHAR (45), dept_id INT salart INT
You must create a stored function, getMaxSalary(), which returns the maximum salary paid for a given department id.
Which statement will create the function?

NO.43 Examine this event’s metadata:

Now examine this command:
DROP USER ‘userl’e’localhost’;
Which effect will the command have on the event?

The event is scheduled and executed but fails. The system will log an error.

The event is scheduled but will no longer execute. The system will log an error.

The event will be dropped without an error or warning.

The event is not scheduled and will no longer execute. The system will log an error.

NO.44 Which statement is true about the show errors command?

It displays the total number of errors, warnings, and notes since the beginning of the current session.

It displays the total number of errors, warnings, and notes since the server last restarted.

It cannot display information for more than max_errot_count server system variable setting.

It displays errors messages only, since the start time of the current session.

It displays errors messages only, since the server last restarted.

It displays similar diagnostics results as get diagnostics.

NO.45 Which two differences exist between the timestamp and date time data types?

timestamp has larger range of values.

timestamp uses less storage space.

timestamp stores more decimal points in seconds

timestamp converts the value based on the session time zone.

timestamp stores the interval between two dates.

NO.46 Examine these commands and output:

Which is true?

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

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

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

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

NO.47 You are using buffered queries with PHP mysqli in a browser-based web application. Which three are true?

Additional queries on the same session are blocked until the result set is released.

Results are sent from the server to the browser for buffering.

Buffered queries are enabled by default.

Buffered queries should be used on large tables when the result size is unknown.

Results are sent to the calling PHP process for buffering.

Buffered queries must be explicitly enabled using mysqliuseresult.

Large results can have a negative impact on performance.

NO.48 Examine the contents of these tables:

Now examine the expected results for a user with privileges to access the table:

Which query returns the expected results?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

NO.49 Examine these commands and output:

Which is true about the execution of the insert statement?

It returns an error.

It inserts a row in the view and base table.

It inserts a new row in the base table only.

It inserts a new row in the view only.

NO.50 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?

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

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

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

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

NO.51 Examine these statement which execute successfully:

Now, examine the statements executed in the mysqi command-line client:

What is true?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

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