Dec-2022 FREE Oracle 1Z0-909 PRACTICE QUESTIONS AND ANSWERS UPDATES [Q25-Q42]

Dec-2022 FREE Oracle 1Z0-909 PRACTICE QUESTIONS AND ANSWERS UPDATES [Q25-Q42]

December 27, 2022 latestexam 0 Comments

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Dec-2022 FREE Oracle 1Z0-909 PRACTICE QUESTIONS AND ANSWERS UPDATES

DEMO FREE BEFORE YOU BUY 1Z0-909 DUMPS

NO.25 Examine this statement that execute successfully in an interactive session:

The user running this session now goes to lunch for an hour.
Now, examine these statements executed independently in separate sessions while Session 0 is still active:

How many of them will complete while Session 0 is still active?

NO.26 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)

Option A

Option B

Option C

Option D

NO.27 Examine these statement which execute successfully:

Now, examine this desired output:

Which two queries will produce the out?
A)

B)

D)

E)

Option A

Option B

Option C

Option D

Option E

NO.28 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)

Option A

Option B

Option C

Option D

NO.29 Which select statement returns true?

SELECT NULL <> NULL;

SELECT NULL <=> NULL;

SELECT NULL = NULL;

SELECT NULL := NULL;

NO.30 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?

SELECT doc->”$.name” FROM col WHERE doc->”$.season” = “1”;

SELECT “S.name” FROM col WHERE “S.season” = “1”;

SELECT doc->,$.name,, FROM col WHERE doc->”$ . season” = “1”;

SELECT name FROM col WHERE season = 1;

NO.31 What is an advantage of using mysqli in PHP programs rather than using PHP Data Objects (PDO)?

mysqli supports object oriented programming.

mysqli can access databases from other vendors.

mysqli supports non blocking, asynchronous queries.

mysqli includes X DevAPI functions.

NO.32 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.33 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)

Option A

Option B

Option C

Option D

NO.34 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?

Enable the mysqli extension in the php.ini file.

Replace line 2 with Slink = mysql.connect {“localhost: 3306n, “username”, “pas “schema”) ;

Replace line 2 With: Slink = mysql_xdevapigetSession
(“mysqlx://username:password@localhost:3306″,”schema”);

Install the PHP executable in the path used by the MySQL installation.

NO.35 Examine this statement which has executed successfully:

Execution performance can be improved by using like instead of RLIKE.

The statement takes advantage of index description_idx.

Execution performance can be improved by, using a composite index with column description as the leftmost prefix column description.

No index will improve statement performance.

Execution performance can be improved by adding an index on column description.

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

Which two statements would generate this bar graph?

SELECT Name, Gender, Sport, REPEAT(‘# ‘Y GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, LENGTH (GPA*10, ‘# ‘) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, CHAR_LENGTH (‘# ‘ GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, RPAD (‘# ‘ GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, CONCAT (‘# ‘ GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

NO.38 Examine these statements and output:

Now, examine this command:
Mysql> ROLLBACK;
What is true about the effect of the command?

It undoes the update command.

It returns an error because there is no active transaction.

It undoes the insert command.

It undoes both insert and update commands.

It has no effect.

NO.39 Examine this bar graph based on columns from the players table:

Which two statements would generate this bar graph?

SELECT Name, Gender, Sport, REPEAT(‘# ‘Y GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, LENGTH (GPA*10, ‘# ‘) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, CHAR_LENGTH (‘# ‘ GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, RPAD (‘# ‘ GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, CONCAT (‘# ‘ GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

NO.40 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?

SELECT last_name + ‘, ‘ + first_name FROM employees;

SELECT CONCAT_WS(‘, ‘,last_name,first_name) FROM employees;

SELECT GROUP_CONCAT(last_name, first_name) FROM employees;

SELECT last_name, ‘ , ‘,first_name FROM employees;

SELECT CONCAT(last name,’, ‘,first_name) FROM employees;

NO.41 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)