[Jul 13, 2023] Fully Updated Dumps PDF - Latest 1Z0-909 Exam Questions and Answers
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NEW QUESTION # 31
Which statement is true about the show errors command?
- A. It displays errors messages only, since the start time of the current session.
- B. It displays the total number of errors, warnings, and notes since the beginning of the current session.
- C. It displays similar diagnostics results as get diagnostics.
- D. It cannot display information for more than max_errot_count server system variable setting.
- E. It displays the total number of errors, warnings, and notes since the server last restarted.
- F. It displays errors messages only, since the server last restarted.
Answer: B
NEW QUESTION # 32
Examine these commands which execute successfully:
mYsql> CREATE TABLE income (acct_num INT, amount DECIMAL(10,2));
mysql> CREATE TRIGGER subtotal BEFORE INSERT ON income
FOR EACH ROW SET @subtotal = subtotal + NEW.amount;
Which is true for the income table?
- A. The trigger body set causes trigger activation.
- B. The trigger activates after any row has been inserted into the table.
- C. Execution of an insert statement causes the trigger to activate.
- D. The trigger activates after any row in the table has been updated.
Answer: C
NEW QUESTION # 33
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 returned because the isolation level is RPEATABLE READ in S1.
- B. The inserted row is not returned because the transaction still active in s2.
- C. The inserted row is returned because the transaction is auto committed in S2.
- D. The inserted row is not returned because the isolation level is READ COMMITTED in S2.
Answer: C
NEW QUESTION # 34
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?
- A.
- B.
- C.
- D.
Answer: B
NEW QUESTION # 35
Examine these statements:
SET collation_connection=utf8mb4_0900_as_cs;
SELECT STRCMPCAlice', UCASE ('Alice* )) ;
What is displayed?
- A. ERROR: 1267 (HYOOO): Illegal mix of collations
- B. NULL
- C. 0
- D. 1
- E. 2
Answer: B
NEW QUESTION # 36
Examine these MySQL Shell statements:
What is the true about the attempts to add document to the collection?
- A. First two documents are added, then mismatched field names cause a warning.
- B. First three documents are added, then different number of fields cause an error.
- C. All documents are added without any error or warning.
- D. All documents are added and cause a warning.
- E. First two documents are added, then mismatched field names cause an error.
Answer: D
NEW QUESTION # 37
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 TIMESTAMP duration TIMESTAMP
- B. start_time TIME duration TIME
- C. start_time DATETIME duration DATETIME
- D. start__time DATETIME duration TIME
- E. start_time TIMESTAMP duration TIME
Answer: C
NEW QUESTION # 38
Which two differences exist between the timestamp and date time data types?
- A. timestamp has larger range of values.
- B. timestamp stores the interval between two dates.
- C. timestamp uses less storage space.
- D. timestamp converts the value based on the session time zone.
- E. timestamp stores more decimal points in seconds
Answer: C,D
NEW QUESTION # 39
Examine these lines of Python code:
You must add a line of code to complete the code to return data to the variable d. Which line will do this?
- A. d = cursor . f etchall (query)
- B. d = cursor.fetchall(query, (hire_start, hire_end))
- C. d = cursor.fetch(query % (hire_start, hire_end))
- D. d = cursor.execute(query, (hire_start, hire_end) )
- E. d = cursor.execute(query)
- F. d = cursor.fetch(query, (hire_start, hire_end))
Answer: F
NEW QUESTION # 40
Examine these statements which execute successfully:
The statements executed without exception. Which two are true?
- A. No transaction commits.
- B. The transaction is rolled back to the savepoint.
- C. One row is inserted into band.
- D. Two transactions commit.
- E. No row is inserted into band.
Answer: A,C
NEW QUESTION # 41
You must enforce data integrity for data Inserted in a JSON column.
Which statement successfully creates a constraint in a 3SON column?
- A. CREATE TABLE fshop (id INT NOT NULL AUTO_ INCREMENT, product JSON, CHECK (id>0) ) ENGXNE=InnoDB;
- B. CREATE TABLE fshop (product JSON CHECK (JSON_VALID(product) ) ) ;
- C. CREATE TABLE fshop ( product JSON, f INT' GENERATED ALWAYS AS (product->"S - id") ) ;
- D. CREATE TABLE fshop (id INT NOT NULL AUTOINCREMENT, product JSON, PRIMARY KEY (id)) ENGINE=InnoDB;
Answer: D
NEW QUESTION # 42
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 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 CONCAT(last name,', ',first_name) FROM employees;
Answer: D,E
NEW QUESTION # 43
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. Place this in the root directory of your shell account:
[mysqld] require__secure_transport=OFF - B. Upgrade the connector to a version that supports caching_sha2_password.
- C. Use blank RSA or SSL certificates.
- D. Change the user account to use mysql_native_password.
- E. Disable TLS/SSL authentication.
Answer: B
NEW QUESTION # 44
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 transaction is auto committed in S2.
- C. The inserted row is returned because the isolation level is RPEATABLE READ in S1.
- D. The inserted row is not returned because the isolation level is READ COMMITTED in S2.
Answer: A
NEW QUESTION # 45
Which two differences exist between the timestamp and date time data types?
- A. timestamp converts the value based on the session time zone.
- B. timestamp has larger range of values.
- C. timestamp uses less storage space.
- D. timestamp stores more decimal points in seconds
- E. timestamp stores the interval between two dates.
Answer: D,E
NEW QUESTION # 46
The collection col contains all episodes for all seasons for a TV show.
Examine this document which has an example of the details for each episode:
Which query returns all expisode names from the first season?
- A. SELECT "S.name" FROM col WHERE "S.season" = "1";
- B. SELECT name FROM col WHERE season = 1;
- C. SELECT doc->"$.name" FROM col WHERE doc->"$.season" = "1";
- D. SELECT doc->,$.name,, FROM col WHERE doc->"$ . season" = "1";
Answer: A
NEW QUESTION # 47
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. The socket is not implemented in Connector/J driver.
- B. socket is a reserved word in Java.
- C. Java treats the socket file as insecure.
- D. The X Dev API protocol must be enabled to use sockets in Connector/J driver.
- E. The socket can only be accessed from the local host.
Answer: A,C
NEW QUESTION # 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)
- A. Option D
- B. Option C
- C. Option B
- D. Option A
Answer: D
NEW QUESTION # 49
Examine these statements issued from Session 1 which execute successfully:
Now, examine these statements issued from Session 2 which execute successfully:
Session 2>
BEGIN;
UPDATE band SET song=CONCAT ("Here Comes the ", song) WHERE song LIKE ' %Sun ; Which two are true?
- A. Session 2 takes an exclusive lock on all the rows in the band table.
- B. Session 2 does not start a transaction.
- C. Statements in Session 2 are committed.
- D. Session 1 does not block Session 2.
- E. Session 1 must commit before the update in Session 2 can complete.
- F. Session 1 takes a shared lock on all the rows in the band table.
Answer: C,E
NEW QUESTION # 50
Examine these statements which execute successfully:
Which two changes will improve this query performance?
- A. CREATE INDEX 1X6 ON users (user_name);
- B. CREATE INDEX 1X7 ON users (user_name) USING HASH;
- C. CREATE INDEX 1X2 ON locations (loc_mapping) USING HASH; fH
- D. CREATE INDEX IX1 ON locations (loc_shareci) ;
- E. CREATE INDEX 1X5 ON users (loc_id);
- F. CREATE INDEX 1X4 ON Locations (site_id, loc_shared);
- G. CREATE INDEX 1X3 ON locations <loc_site_id) ;
Answer: A,B
NEW QUESTION # 51
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?
A)
B)
C)
D)
- A. Option D
- B. Option C
- C. Option B
- D. Option A
Answer: D
NEW QUESTION # 52
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?
- A. A deadlock will occur.
- B. The statement will wait for the transaction in Session 1 to finish.
- C. The row will be updated immediately.
- D. The transaction in Session 1 will be rolled back automatically.
Answer: D
NEW QUESTION # 53
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