Home » Oracle » 1z0-061 » Which statement is true regarding the above queries?
Examine the structure of the TRANSACTIONS table:
Name Null Type
TRANS_ID NOT NULL NUMBER(3)
CUST_NAME VARCHAR2(30)
TRANS_DATE DATE
TRANS_AMT NUMBER(10, 2)
You want to display the transaction date and specify whether it is a weekday or weekend.
Evaluate the following two queries:
Which statement is true regarding the above queries?
A. Both give wrong results.
B. Both give the correct result.
C. Only the first query gives the correct result.
D. Only the second query gives the correct result.
Correct Answer: C
Explanation/Reference:
Explanation:
Range Conditions Using the BETWEEN Operator
Use the BETWEEN operator to display rows based on a range of values:
SELECT last_name, salary
FROM employees
WHERE salary BETWEEN 2500 AND 3500;
Range Conditions Using the BETWEEN Operator
You can display rows based on a range of values using the BETWEEN operator. The range that you specify contains a lower limit and an upper limit.
The SELECT statement in the slide returns rows from the EMPLOYEES table for any employee whose salary is between $2, 500 and $3, 500.
Values that are specified with the BETWEEN operator are inclusive. However, you must specify the lower limit first.
You can also use the BETWEEN operator on character values:
SELECT last_name
FROM employees
WHERE last_name BETWEEN ‘King’ AND ‘Smith’;
|
Download Printable PDF. VALID exam to help you PASS.
|
 |
The second query runs successfully, but the output is wrong because the expression logic is not right.
It looks at the BETWEEN condition as exact 2 values ‘MONDAY’ and ‘FRIDAY’- not as interval between [monday and friday] .