Real 1Z0-909 dumps - Real Oracle dumps PDF in here [May-2023]
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Passing the Oracle 1z1-909 exam can open up opportunities for you, especially since there is always a high demand for database developers with expertise in managing MySQL 8.0 databases. A certification in MySQL 8.0 Database Developer can help you enhance your credibility as a database professional and give you a competitive edge in job interviews, promotions, and salary negotiations.
Oracle 1Z0-909 Exam Syllabus Topics:
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NEW QUESTION # 28
Examine this statement and output:
What causes the error?
- A. The database user does not have sufficient privilege.
- B. The database client process does not have sufficient privilege.
- C. The engine is disabled.
- D. The set local_infile option has not been enabled.
- E. The database server is running in read-only mode.
- F. The database server process does not have sufficient privilege.
Answer: F
NEW QUESTION # 29
Which two are true about indexes?
- A. Indexes reduce disk space used.
- B. Secondary index access will always be faster than a table scan.
- C. Indexes are used to enforce unique constraints.
- D. Indexes contain rows sorted by key values.
- E. Indexing all of a table's columns improves performance.
Answer: A,E
NEW QUESTION # 30
Examine the employee table structure:
Which set of statements immediately returns empname for a given emp_id by using a parameterized prepare statement?
A)
D)
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: C
NEW QUESTION # 31
Which change will prevent negative ages to be inserted into the people table?
- A. ALTER TABLE people ADD CONSTRAINT check_age CHECK (ABS(age)>=0);
- B. DELIMITER //
CREATE TRIGGER agecheck BEFORE INSERT ON people FOR EACH ROW IF NEW. age < 0 THEN SET NEW.age =0; END IF;// DELIMITER ; - C. DELIMITER //
CREATE TRIGGER age check AFTER INSERT ON people FOR EACH ROW IF NEW. age < 0 THEN SET NEW.age =0; END IF;// DELIMITER; - D. ALTER TABLE people ADD COLUMN valid_age=ABS(check_age) GENERATED ALWAYS;
Answer: A
NEW QUESTION # 32
You must write a statement that combines the first_name and last_name columns from the employees table as "last_name, first_name." Which two statements will do this?
- A. SELECT last_name, ' , ',first_name FROM employees;
- B. SELECT CONCAT(last name,', ',first_name) FROM employees;
- C. SELECT GROUP_CONCAT(last_name, first_name) FROM employees;
- D. SELECT CONCAT_WS(', ',last_name,first_name) FROM employees;
- E. SELECT last_name + ', ' + first_name FROM employees;
Answer: C,E
NEW QUESTION # 33
Examine this event's metadata:
Now examine this command:
DROP USER 'userl'e'localhost';
Which effect will the command have on the event?
- A. The event is not scheduled and will no longer execute. The system will log an error.
- B. The event is scheduled but will no longer execute. The system will log an error.
- C. The event is scheduled and executed but fails. The system will log an error.
- D. The event will be dropped without an error or warning.
Answer: B
NEW QUESTION # 34
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?
- A. socket is a reserved word in Java.
- B. The X Dev API protocol must be enabled to use sockets in Connector/J driver.
- C. Java treats the socket file as insecure.
- D. The socket is not implemented in Connector/J driver.
- E. The socket can only be accessed from the local host.
Answer: C,D
NEW QUESTION # 35
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?
- A. start__time DATETIME duration TIME
- B. start_time TIMESTAMP duration TIMESTAMP
- C. start_time TIMESTAMP duration TIME
- D. start_time DATETIME duration DATETIME
- E. start_time TIME duration TIME
Answer: D
NEW QUESTION # 36
Examine these statements which execute successfully:
The statements executed without exception. Which two are true?
- A. No transaction commits.
- B. One row is inserted into band.
- C. No row is inserted into band.
- D. Two transactions commit.
- E. The transaction is rolled back to the savepoint.
Answer: A,B
NEW QUESTION # 37
Examine these MySQL Shell statements:
What is the true about the attempts to add document to the collection?
- A. All documents are added and cause a warning.
- B. First two documents are added, then mismatched field names cause an error.
- C. All documents are added without any error or warning.
- D. First three documents are added, then different number of fields cause an error.
- E. First two documents are added, then mismatched field names cause a warning.
Answer: A
NEW QUESTION # 38
Examine these statement which execute successfully:
Now, examine this desired output:
Which two queries will produce the out?
- A.
- B.
- C.
- D.
- E.
Answer: A,E
NEW QUESTION # 39
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. Use blank RSA or SSL certificates.
- C. Place this in the root directory of your shell account:
[mysqld] require__secure_transport=OFF - D. Disable TLS/SSL authentication.
- E. Change the user account to use mysql_native_password.
Answer: A
NEW QUESTION # 40
Examine this bar graph based on columns from the players table:
Which two statements would generate this bar graph?
- A. SELECT Name, Gender, Sport, RPAD ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- B. SELECT Name, Gender, Sport, REPEAT('# 'Y GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- C. SELECT Name, Gender, Sport, CONCAT ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- D. SELECT Name, Gender, Sport, CHAR_LENGTH ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
- E. SELECT Name, Gender, Sport, LENGTH (GPA*10, '# ') AS GPA_Graph FROM players ORDER BY GPA DESC;
Answer: A,E
NEW QUESTION # 41
Examine this statement:
- A. Inserting COMMIT; SET @m :=: before line 4
- B. user who creates the procedure needing the create routine privilege
- C. user who creates the procedure needing the create and execute privileges
- D. Inserting DEFINER 'username '@' localhost' clause into the CREATE PROCEDURE statement
- E. inserting USE <database >; before line 3
Answer: D
NEW QUESTION # 42
Examine this statement which executes successfully:
CREATE TABLE 'fshop' ('product' JSON DEFAULT NULL ) ENGINE=InnoDB;
Now, examine a json value contained in the table:
{"name" : "orange", "varieties" : [{"VarietyName":"Clementine", "Origin" : ["PA", "BU"] }, {"VarietyName": "tangerine", "Origin" : ["CH","JP"]>]> Which will cause documents to be indexed over the 'name' key?
- A. ALTER TABLE fshop ADD COLUMN name VARCHAR(20), ADD KEY idx_name (name) ;
- B. ALTER TABLE fshop ADD COLUMN name VARCHAR(100) AS (product->' S - varieties' ) VIRTUAL, ADD KEY idx_name (name) ;
- C. ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product-
>* S .varieties. VarietyName ' ) VIRTUAL, ADD KEY idx_name (name.) ; - D. ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product->' S - name' ) VIRTUAL, ADD KEY idx_name (name) ;
- E. ALTER TABLE fshop ADD name VARCHAR(20) AS (JSON_ONQUOTE (product->"S.varieties.VarietyName")), ADD INDEX (name);
Answer: B
NEW QUESTION # 43
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)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: C
NEW QUESTION # 44
Which select statement returns true?
- A. SELECT NULL <=> NULL;
- B. SELECT NULL = NULL;
- C. SELECT NULL <> NULL;
- D. SELECT NULL := NULL;
Answer: A
NEW QUESTION # 45
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. Use blank RSA or SSL certificates.
- C. Place this in the root directory of your shell account:
[mysqld] require__secure_transport=OFF - D. Disable TLS/SSL authentication.
- E. Change the user account to use mysql_native_password.
Answer: A,E
NEW QUESTION # 46
Which two are true about MySQL connectors?
- A. Connector/NET runs on the Windows platform only.
- B. Connector/ODBC is available on Unix, Windows, and MacOS X.
- C. Connectors must be installed on both the client and server hosts.
- D. Connector/J is based on Connector/C.
- E. Connector/Python is released in precompiled binary and source code.
Answer: C,D
NEW QUESTION # 47
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?
- A. The inserted row is not returned because the transaction still active in s2.
- B. The inserted row is returned because the isolation level is RPEATABLE READ in S1.
- C. The inserted row is not returned because the isolation level is READ COMMITTED in S2.
- D. The inserted row is returned because the transaction is auto committed in S2.
Answer: A
NEW QUESTION # 48
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. Install the PHP executable in the path used by the MySQL installation.
- B. Enable the mysqli extension in the php.ini file.
- C. Replace line 2 With: Slink = mysql_xdevapi\getSession
("mysqlx://username:password@localhost:3306","schema"); - D. Replace line 2 with Slink = mysql.connect {"localhost: 3306n, "username", "pas "schema") ;
Answer: B
NEW QUESTION # 49
Examine this SQL statement:
- A. db. country-select(['Name','Population']) .where('Name LIKE :param') -bind ('param' , 'United*') -limit(5)
- B. db . country. Select ([Name' , 'Population.'] ) -limit (5) .where('Name LIKE "United%"')
- C. db . country, select ( [ ' Name LIKE "united%" ' , ' Population>^0 ' ] ) - limit (5)
- D. db . country. fields ( [ ' Name ' , 'Population']) . select (' limit=5 ' ) .where('Name LIKE "United%" ' )
- E. db.country. fields ( [ 'Name ' , 'Population* ] ) .where ( 'Name LIKE "United%',,) -select ()-limit(5)
Answer: A
NEW QUESTION # 50
Examine the statement which executes successfully:
SET sql_mode=' NO_ENGINE_SUBSTITTJTION' ;
You try to create a table with a storage engine that is not available. What will happen?
- A. An error occurs and the create table statement fails.
- B. The server will create the table using the default storage engine.
- C. The server will create the table but it will be unusable until the specified storage engine is available.
- D. The server will create the table but report an error when the first attempt to insert a row is performed.
Answer: A
NEW QUESTION # 51
Examine this statement:
DECLARE not_found CONDITION FOR SQLSTATE '02000';
In which two statements can not found be used?
- A. in a handler declaration
- B. in a leave statement to exit a loop
- C. in a while loop
- D. in an if statement
- E. in a signal statement
Answer: C,E
NEW QUESTION # 52
Examine the layout of the my_values table.
Examine the data in the my_value3 table.
Examine this statement:
A)
B)
D)
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: C
NEW QUESTION # 53
......
The certification exam consists of 70 multiple-choice questions that must be completed within 105 minutes. To pass the Oracle 1Z0-909 exam, candidates must score at least 65%. The exam is available in several languages, including English, Japanese, and Simplified Chinese.
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