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61. View the Exhibit and examine the structure of the PROMOTIONS table.

You need to generate a report of all promos from the PROMOTIONS table based on the following

conditions:

1. The promo name should not begin with 'T' or 'N'.

2. The promo should cost more than $20000. >20000

3. The promo should have ended after 1st January 2001.

Which WHERE clause would give the required result?

A. WHERE promo_name NOT LIKE 'T%' OR promo_name NOT LIKE 'N%' AND promo_cost > 20000

AND promo_end_date > '1-JAN-01'

B. WHERE (promo_name NOT LIKE 'T%' AND promo_name NOT LIKE 'N%')OR promo_cost > 20000

OR promo_end_date > '1-JAN-01'

C. WHERE promo_name NOT LIKE 'T%' AND promo_name NOT LIKE 'N%' AND promo_cost > 20000

AND promo_end_date > '1-JAN-01'

D. WHERE (promo_name NOT LIKE '%T%' OR promo_name NOT LIKE '%N%') AND(promo_cost >

20000 AND promo_end_date > '1-JAN-01')

Answer: C

試題解析：

因為三個條件是并行的，即要求都滿足條件，所以都應(yīng)該使用AND連接符。

A,promo_name NOT LIKE 'T%' OR promo_name NOT LIKE 'N%',OR 應(yīng)改為AND

B,兩個OR應(yīng)該改為AND

C正確

D第一個OR應(yīng)該改為AND