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1z0-909 MySQL 8.0 Database Developer Questions and Answers

Questions 4

You must reclaim memory used by a prepared statement named prep. Which two achieve this?

Options:

A.

SET @a = ''; EXECUTE prep USING @a;

B.

DEALLOCATE PREPARE prep?

C.

DROP PROCEDURE prep;

D.

SET @prep = NULL;

E.

DROP PREPARE prep;

F.

PREPARE prep FROM '';

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Questions 5

Examine these statements which execute successfully:

The statements executed without exception. Which two are true?

Options:

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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Questions 6

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

Which two statements would generate this bar graph?

Options:

A.

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

B.

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

C.

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

D.

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

E.

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

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Questions 7

Examine these commands and output:

Which is true about the execution of the insert statement?

Options:

A.

It returns an error.

B.

It inserts a row in the view and base table.

C.

It inserts a new row in the base table only.

D.

It inserts a new row in the view only.

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Questions 8

Examine the layout of the my_values table.

Examine the data in the my_value3 table.

Examine this statement:

A)

B)

C)

D)

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Questions 9

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)

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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MySQL Developer |

Exam Code: 1z0-909
Exam Name: MySQL 8.0 Database Developer
Last Update: Nov 11, 2025
Questions: 65
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