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NEW QUESTION 31
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 GROUP_CONCAT(last_name, first_name) FROM employees;
• B. SELECT CONCAT(last name,', ',first_name) FROM employees;
• C. SELECT last_name, ' , ',first_name FROM employees;
• D. SELECT CONCAT_WS(', ',last_name,first_name) FROM employees;
• E. SELECT last_name + ', ' + first_name FROM employees;

Answer: A,E

NEW QUESTION 32
Examine this table definition:

The table must always remain a valid document store collection. What restriction does this impose on any added column?

• A. The column must be indexed.
• B. The column must have a default value.
• C. The column must be used in a unique constraint.
• D. The column must be a generated column referencing any attribute of doc.
• E. The column must be a generated column referencing only an existing attribute of doc.

Answer: D

NEW QUESTION 33
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)

• A. Option A
• B. Option B
• C. Option D
• D. Option C

Answer: D

NEW QUESTION 34
Examine these statements which execute successfully:

The statements executed without exception. Which two are true?

• A. One row is inserted into band.
• B. The transaction is rolled back to the savepoint.
• C. No transaction commits.
• D. Two transactions commit.
• E. No row is inserted into band.

Answer: A,C

NEW QUESTION 35
......