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MySQL 8.0 Database Developer Question and Answers

MySQL 8.0 Database Developer

Last Update May 2, 2024
Total Questions : 65

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Questions 1

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?

Options:

A.  

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

B.  

SELECT "S.name" FROM col WHERE "S.season" = "1";

C.  

SELECT doc-»,,$.name,, FROM col WHERE doc-»"$ . season" = "1";

D.  

SELECT name FROM col WHERE season = 1;

Discussion 0
Questions 2

Examine this statement and output:

What causes the error?

Options:

A.  

The engine is disabled.

B.  

The set local_infile option has not been enabled.

C.  

The database user does not have sufficient privilege.

D.  

The database server process does not have sufficient privilege.

E.  

The database client process does not have sufficient privilege.

F.  

The database server is running in read-only mode.

Discussion 0
Questions 3

Examine the statement which executes successfully:

SET sql_mode=' NO_ENGINE_SUBSTITTJTION' ;

You try to create a table with a storage engine that is not available. What will happen?

Options:

A.  

An error occurs and the create table statement fails.

B.  

The server will create the table but it will be unusable until the specified storage engine is available.

C.  

The server will create the table but report an error when the first attempt to insert a row is performed.

D.  

The server will create the table using the default storage engine.

Discussion 0
Questions 4

Examine these statement which execute successfully:

Now, examine the statements executed in the mysqi command-line client:

What is true?

A)

B)

C)

D)

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Questions 5

Examine these commands and output:

Which is true?

Options:

A.  

Existing emp_vuL is dropped and a new emp_vu1 created with the new definition.

B.  

A new view is created because the previous was dropped on execution of the drop table statement.

C.  

It returns an error because the CREATE TABLE statement automatically recreated the view.

D.  

It returns an error because the DROP TABLE statement did not drop the view.

Discussion 0
Questions 6

Examine these my.cnf settings:

Examine this entry from /data/slow.log

Which option is also set in my.cnf?

Options:

A.  

log_queries_not_using_indexes

B.  

log__slow_admin_statements=1

C.  

log_queries_not_using_indexes=ON

D.  

log_throttle_queries_not_using_indexes=100

Discussion 0
Questions 7

Examine these statements which execute successfully:

Now, examine this query:

What is the result?

Options:

A.  

It inserts a row with a warning.

B.  

It inserts a row with no error or warning.

C.  

It inserts a row with an error.

D.  

It fails with an error.

E.  

It fails with a warning.

Discussion 0
Questions 8

Examine this statement and output:

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

A)

B)

C)

D)

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Questions 9

Examine these commands which execute successfully:

mYsql> CREATE TABLE income (acct_num INT, amount DECIMAL(10,2));

mysql> CREATE TRIGGER subtotal BEFORE INSERT ON income

FOR EACH ROW SET @subtotal = ©subtotal + NEW.amount;

Which is true for the income table?

Options:

A.  

The trigger activates after any row has been inserted into the table.

B.  

The trigger body set causes trigger activation.

C.  

The trigger activates after any row in the table has been updated.

D.  

Execution of an insert statement causes the trigger to activate.

Discussion 0