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1z0-909 Questions and Answers

Question # 6

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?

A.

The select requires json_unquoteo in the where clause.

B.

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

C.

The JSON datatype cannot be used in virtual columns.

D.

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

E.

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

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Question # 7

Examine this SQL statement:

A.

db.country. fields ( [ 'Name ' , 'Population* ] ) .where ( 'Name LIKE "United%',,) -select ()-limit(5)

B.

db . country, select ( [ ' Name LIKE "united%" ' , ' Population>^0 ' ] ) - limit (5)

C.

db . country. fields ( [ ' Name ' , 'Population']) . select (' limit=5 ' ) .where('Name LIKE "United%" ' )

D.

db. country-select(['Name',’Population']) .where('Name LIKE :param’) -bind ('param' , 'United*') -limit(5)

E.

db . country. Select ([Name' , 'Population.'] ) -limit (5) .where('Name LIKE "United%"')

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Question # 8

Examine these statements which execute successfully:

The statements executed without exception. Which two are true?

A.

No transaction commits.

B.

One row is inserted into band.

C.

Two transactions commit.

D.

No row is inserted into band.

E.

The transaction is rolled back to the savepoint.

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Question # 9

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 GROUP_CONCAT(last_name, first_name) FROM employees;

D.

SELECT last_name, ‘ , ',first_name FROM employees;

E.

SELECT CONCAT(last name,', ',first_name) FROM employees;

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