2023 New 1z1-909 Dumps – Real Oracle Exam Questions [Q23-Q38]

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2023 New 1z1-909 Dumps – Real Oracle Exam Questions

Dependable 1z1-909 Exam Dumps to Become Oracle Certified

NO.23 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.24 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.25 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.26 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.27 Examine this statement:

Inserting COMMIT; SET @m :=: before line 4

user who creates the procedure needing the create and execute privileges

user who creates the procedure needing the create routine privilege

inserting USE <database >; before line 3

Inserting DEFINER ‘username ‘@’ localhost’ clause into the CREATE PROCEDURE statement

NO.28 Examine this statement which executes successfully:

The table is populated with a range of values including jobs for Robert, John, and Katie. Now, examine this statement and output:

Why is an empty result set returned?

The select requires json_unquoteo in the where clause.

The virtual values in the name column must be accessed using functions.

The JSON datatype cannot be used in virtual columns.

The json_extract() function requires a length value that matches the field length in the schema.

Table statistics must be updated to generate values for the name column.

NO.29 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.30 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.31 Examine the appointments table definition which contains one million rows:

Now, examine this statement which executes successfully:

Which statement will improve query performance?

ALTER TABLE appointments add index IX_4<attendant_id, payment, credit)

ALTER TABLE appointments add index IX_1(credit,payment)

ALTER TABLE appointments add index IX_2(attendant_session_id, created_by)

ALTER TABLE appointments add index IX_3(attendant_id, created_by)

NO.32 Examine the layout of the my_values table.

Examine the data in the my_value3 table.

Examine this statement:

A)

B)

D)

Option A

Option B

Option C

Option D

NO.33 Examine this statement:
DECLARE not_found CONDITION FOR SQLSTATE ‘02000’;
In which two statements can not found be used?

in a leave statement to exit a loop

in an if statement

in a while loop

in a handler declaration

in a signal statement

NO.34 You must reclaim memory used by a prepared statement named prep. Which two achieve this?

SET @a = ”; EXECUTE prep USING @a;

DEALLOCATE PREPARE prep?

DROP PROCEDURE prep;

SET @prep = NULL;

DROP PREPARE prep;

PREPARE prep FROM ”;

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

A)

B)

C)

D)

Option A

Option B

Option C

Option D

NO.36 Examine this statement and output:

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

NO.37 You must enforce data integrity for data Inserted in a JSON column.
Which statement successfully creates a constraint in a 3SON column?

CREATE TABLE fshop (product JSON CHECK (JSON_VALID(product) ) ) ;

CREATE TABLE fshop ( product JSON, f INT’ GENERATED ALWAYS AS (product->”S – id”) ) ;

CREATE TABLE fshop (id INT NOT NULL AUTOINCREMENT, product JSON, PRIMARY KEY (id)) ENGINE=InnoDB;

CREATE TABLE fshop (id INT NOT NULL AUTO_ INCREMENT, product JSON, CHECK (id>0) ) ENGXNE=InnoDB;

NO.38 Examine these statements which execute successfully:

Which two changes will improve this query performance?

CREATE INDEX 1X7 ON users (user_name) USING HASH;

CREATE INDEX 1X4 ON Locations (site_id, loc_shared);

CREATE INDEX IX1 ON locations (loc_shareci) ;

CREATE INDEX 1X6 ON users (user_name);

CREATE INDEX 1X3 ON locations <loc_site_id) ;

CREATE INDEX 1X2 ON locations (loc_mapping) USING HASH; fH

CREATE INDEX 1X5 ON users (loc_id);

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