單項選擇題

Evaluate this SQL statement:
SELECT e.emp_name, d.dept_name
FROM employees e
JOIN departments d
USING (department_id)
WHERE d.department_id NOT IN (10,40)
ORSER BY dept_name;
The statement fails when executed. Which change fixes the error? （）

A. remove the ORDER BY clause
B. remove the table alias prefix from the WHERE clause
C. remove the table alias from the SELECT clause
D. prefix the column in the USING clause with the table alias
E. prefix the column in the ORDER BY clause with the table alias
F. replace the condition "d.department_id NOT IN (10,40)" in the WHERE clause with "d.department_id <> 10 AND d.department_id <> 40"

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多項選擇題

Which three statements about subqueries are true? （）

A. A main query can have more than one subquery.
B. A subquery can have more than one main query.
C. The subquery and main query must retrieve data from the same table.
D. The subquery and main query can retrieve data from different tables.
E. Only one column or expression can be compared between the subquery and main query.
F. Multiple columns or expression can be compared between the subquery and main query.

單項選擇題

For which action can you use the TO_DATE function? （）

A. Convert any date literal to a date
B. Convert any numeric literal to a date
C. Convert any character literal to a date
D. Convert any date to a character literal
E. Format '10-JAN-99' to 'January 10 1999'

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Evaluate this SQL statement: SELECT e.emp_name, d.dept_name FROM employees e JOIN departments d USING (department_id) WHERE d.department_id NOT IN (10,40) ORSER BY dept_name; The statement fails when executed. Which change fixes the error? （）

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Which three statements about subqueries are true? （）

For which action can you use the TO_DATE function? （）

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Evaluate this SQL statement:
SELECT e.emp_name, d.dept_name
FROM employees e
JOIN departments d
USING (department_id)
WHERE d.department_id NOT IN (10,40)
ORSER BY dept_name;
The statement fails when executed. Which change fixes the error? （）