[Nov-2022] Valid Way To Pass Oracle Exam Dumps with 1z1-909 Exam Study Guide [Q26-Q46]

[Nov-2022] Valid Way To Pass Oracle Exam Dumps with 1z1-909 Exam Study Guide

All 1z1-909 Dumps and MySQL 8.0 Database Developer Training Courses Help candidates to study and pass the Exams hassle-free!

NEW QUESTION 26
Examine these statements which execute successfully:

Now, examine this query:

What is the result?

• A. It fails with an error.
• B. It inserts a row with no error or warning.
• C. It inserts a row with a warning.
• D. It inserts a row with an error.
• E. It fails with a warning.

Answer: B

 

NEW QUESTION 27
Examine this statement and output:

Now, examine these desired output values:

Which statement updates the table data as require

• A. UPDATE examresult SET score=ROUND(CEIL(score
• B. UPDATE exam_result SET score=TRUNCATE(score,1);
• C. UPDATE exam_result SET score=CEIL(TRUNCATE(sco
• D. UPDATE exam_result SET score=TRUNCATE
• E. UPDATE exam_result SET score=ROUND(score,1);
• F. UPDATE exam_result SET score=CEIL(ROUND(score,1));

Answer: E

 

NEW QUESTION 28
How does InnoDB choose deadlock victims in MySQL?

• A. It chooses the transaction with the most accumulated CPU time.
• B. It chooses the transaction randomly.
• C. It chooses the transaction with the most modified rows.
• D. It chooses the transaction with the fewest modified rows.
• E. It chooses the transaction with the lowest transaction ID.
• F. It chooses the transaction with the least accumulated CPU time.

Answer: B

 

NEW QUESTION 29
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.fetchall(query, (hire_start, hire_end))
• B. d = cursor . f etchall (query)
• C. d = cursor.fetch(query % (hire_start, hire_end))
• D. d = cursor.execute(query, (hire_start, hire_end) )
• E. d = cursor.fetch(query, (hire_start, hire_end))
• F. d = cursor.execute(query)

Answer: E

 

NEW QUESTION 30
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.

Answer: B

 

NEW QUESTION 31
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: D

 

NEW QUESTION 32
Which two are true about MySQL connectors?

• A. Connector/Python is released in precompiled binary and source code.
• B. Connector/J is based on Connector/C.
• C. Connector/ODBC is available on Unix, Windows, and MacOS X.
• D. Connectors must be installed on both the client and server hosts.
• E. Connector/NET runs on the Windows platform only.

Answer: B,D

 

NEW QUESTION 33
Examine this bar graph based on columns from the players table:

Which two statements would generate this bar graph?

• A. SELECT Name, Gender, Sport, LENGTH (GPA*10, '# ') AS GPA_Graph FROM players ORDER BY GPA DESC;
• B. SELECT Name, Gender, Sport, CONCAT ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
• C. SELECT Name, Gender, Sport, RPAD ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
• D. SELECT Name, Gender, Sport, REPEAT('# 'Y GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;
• E. SELECT Name, Gender, Sport, CHAR_LENGTH ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

Answer: A,C

 

NEW QUESTION 34
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 D
• B. Option B
• C. Option A
• D. Option C

Answer: A

 

NEW QUESTION 35
The continent column in the country table contains no null values.
Examine this output:

A)

B)

C)

D)

• A. Option B
• B. Option D
• C. Option A
• D. Option C

Answer: C

 

NEW QUESTION 36
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) AS (product->' S - name' ) VIRTUAL, ADD KEY idx_name (name) ;
• B. ALTER TABLE fshop ADD name VARCHAR(20) AS (JSON_ONQUOTE (product->"S.varieties.VarietyName")), ADD INDEX (name);
• C. ALTER TABLE fshop ADD COLUMN name VARCHAR(100) AS (product->' S - varieties' ) VIRTUAL, ADD KEY idx_name (name) ;
• D. ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product-
  >* S .varieties. VarietyName ' ) VIRTUAL, ADD KEY idx_name (name.) ;
• E. ALTER TABLE fshop ADD COLUMN name VARCHAR(20), ADD KEY idx_name (name) ;

Answer: C

 

NEW QUESTION 37
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_WS(', ',last_name,first_name) FROM employees;
• C. SELECT CONCAT(last name,', ',first_name) FROM employees;
• D. SELECT last_name + ', ' + first_name FROM employees;
• E. SELECT GROUP_CONCAT(last_name, first_name) FROM employees;

Answer: B,C

 

NEW QUESTION 38
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 transaction is auto committed in S2.
• B. The inserted row is not returned because the isolation level is READ 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 transaction still active in s2.

Answer: D

 

NEW QUESTION 39
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 B
• B. Option D
• C. Option A
• D. Option C

Answer: C

 

NEW QUESTION 40
Examine this SQL statement:

• A. db . country, select ( [ ' Name LIKE "united%" ' , ' Population>^0 ' ] ) - limit (5)
• B. db . country. Select ([Name' , 'Population.'] ) -limit (5) .where('Name LIKE "United%"')
• C. db.country. fields ( [ 'Name ' , 'Population* ] ) .where ( 'Name LIKE "United%',,) -select ()-limit(5)
• D. db . country. fields ( [ ' Name ' , 'Population']) . select (' limit=5 ' ) .where('Name LIKE "United%" ' )
• E. db. country-select(['Name','Population']) .where('Name LIKE :param') -bind ('param' , 'United*') -limit(5)

Answer: E

 

NEW QUESTION 41
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 isolation level is READ COMMITTED in S2.
• B. The inserted row is not returned because the transaction still active in s2.
• C. The inserted row is returned because the isolation level is RPEATABLE READ in S1.
• D. The inserted row is returned because the transaction is auto committed in S2.

Answer: D

 

NEW QUESTION 42
Which two differences exist between the timestamp and date time data types?

• A. timestamp has larger range of values.
• B. timestamp converts the value based on the session time zone.
• C. timestamp stores more decimal points in seconds
• D. timestamp uses less storage space.
• E. timestamp stores the interval between two dates.

Answer: B,D

 

NEW QUESTION 43
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 B
• B. Option D
• C. Option A
• D. Option C

Answer: A

 

NEW QUESTION 44
Examine this statement which has executed successfully:

• A. The statement takes advantage of index description_idx.
• B. Execution performance can be improved by, using a composite index with column description as the leftmost prefix column description.
• C. Execution performance can be improved by adding an index on column description.
• D. No index will improve statement performance.
• E. Execution performance can be improved by using like instead of RLIKE.

Answer: E

 

NEW QUESTION 45
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. user who creates the procedure needing the create and execute privileges
• E. inserting USE <database >; before line 3

Answer: C

 

NEW QUESTION 46
......

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