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Questions # 1:

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.

Questions # 2:

Which select statement returns true?

Options:

A.

SELECT NULL <> NULL;

B.

SELECT NULL <=> NULL;

C.

SELECT NULL = NULL;

D.

SELECT NULL := NULL;

Questions # 3:

Examine this statement which executes successfully:

Question # 3

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

Question # 3

Why is an empty result set returned?

Options:

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.

Questions # 4:

Examine these statements issued from Session 1 which execute successfully:

Question # 4

Now, examine this statement issued from Session 2:

Question # 4

What is the outcome of the update statement in Session 2?

Options:

A.

The row will be updated immediately.

B.

The statement will wait for the transaction in Session 1 to finish.

C.

A deadlock will occur.

D.

The transaction in Session 1 will be rolled back automatically.

Questions # 5:

Examine this statement that execute successfully in an interactive session:

Question # 5

The user running this session now goes to lunch for an hour.

Now, examine these statements executed independently in separate sessions while Session 0 is still active:

Question # 5

How many of them will complete while Session 0 is still active?

Options:

A.

5

B.

1

C.

2

D.

0

E.

3

F.

4

Questions # 6:

Which two statements are true about AUTO_INCREMENT?

Options:

A.

AUTO_INCREMENT values allocated to a transaction that is rolled back are not reused.

B.

A table can have multiple AUTO_INCREMENT columns.

C.

A server restart always resets the AUTO_INCREMENT value to largest value in the AUTO_INCREMENT column plus 1.

D.

The decimal data type supports AUTO_INCREMENT.

E.

An AUTO_INCREMENT column must be indexed.

Questions # 7:

Examine these statement which execute successfully:

Question # 7

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

Question # 7

What is true?

A)

Question # 7

B)

Question # 7

C)

Question # 7

D)

Question # 7

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Questions # 8:

Examine these lines of Python code:

Question # 8

You must add a line of code to complete the code to return data to the variable d. Which line will do this?

Options:

A.

d = cursor.execute(query)

B.

d = cursor.execute(query, (hire_start, hire_end) )

C.

d = cursor.fetch(query % (hire_start, hire_end))

D.

d = cursor.fetch(query, (hire_start, hire_end))

E.

d = cursor . f etchall (query)

F.

d = cursor.fetchall(query, (hire_start, hire_end))

Questions # 9:

Examine this statement and output:

Question # 9

You execute this statement:

SELECT JSON_SEARCH(product,'one','IT') FROM fshop ;

What is the output?

Options:

A.

product->''$.varieties [4]. origin[1];;

B.

''$.varieties[4]. origin[1]''

C.

product->varieties[3]. origin[0]''

D.

''$.varieties [3]. origin[0]''

Questions # 10:

Examine the structure of the emp table:

Question # 10

Examine the structure of the emp_vu1 view based on the emp table:

Question # 10

Now, examine this statement:

mysq1> INSERT INTO emp_vul VALUES ('Alice',20000) ;

What is true about executing the statement?

Options:

A.

It inserts a row in the emp table.

B.

It returns an error because an insert operation is not allowed on views.

C.

It inserts a row in the view only.

D.

It returns an error because the PRIMARY ACCOUNT column is not selected for the view definition.

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