[Nov-2022] Oracle 1z1-909 Dumps – Reduce Your Chance of Failure in 1z1-909 Exam [Q37-Q51]

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[Nov-2022] Oracle 1z1-909 Dumps – Reduce Your Chance of Failure in 1z1-909 Exam

To help you achieve your ultimate goal, we suggest the actual Oracle 1z1-909 dumps for your MySQL 8.0 Database Developer exam preparation to use as your guideline.

Q37. 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

Q38. 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)

Option A

Option B

Option C

Option D

Q39. Which two differences exist between the timestamp and date time data types?

timestamp has larger range of values.

timestamp uses less storage space.

timestamp stores more decimal points in seconds

timestamp converts the value based on the session time zone.

timestamp stores the interval between two dates.

Q40. Which two are true about MySQL connectors?

Connectors must be installed on both the client and server hosts.

Connector/J is based on Connector/C.

Connector/ODBC is available on Unix, Windows, and MacOS X.

Connector/NET runs on the Windows platform only.

Connector/Python is released in precompiled binary and source code.

Q41. 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

Q42. 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;

Q43. 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

Q44. 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;

Q45. 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?

The inserted row is returned because the transaction is auto committed in S2.

The inserted row is not returned because the isolation level is READ COMMITTED in S2.

The inserted row is not returned because the transaction still active in s2.

The inserted row is returned because the isolation level is RPEATABLE READ in S1.

Q46. Which select statement returns true?

SELECT NULL <> NULL;

SELECT NULL <=> NULL;

SELECT NULL = NULL;

SELECT NULL := NULL;

Q47. 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?

ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product-
>* S .varieties. VarietyName ‘ ) VIRTUAL, ADD KEY idx_name (name.) ;

ALTER TABLE fshop ADD COLUMN name VARCHAR(100) AS (product->’ S – varieties’ ) VIRTUAL, ADD KEY idx_name (name) ;

ALTER TABLE fshop ADD COLUMN name VARCHAR(20) AS (product->’ S – name’ ) VIRTUAL, ADD KEY idx_name (name) ;

ALTER TABLE fshop ADD COLUMN name VARCHAR(20), ADD KEY idx_name (name) ;

ALTER TABLE fshop ADD name VARCHAR(20) AS (JSON_ONQUOTE (product->”S.varieties.VarietyName”)), ADD INDEX (name);

Q48. Examine the layout of the my_values table.

Examine the data in the my_value3 table.

Examine this statement:

A)

B)

D)