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40、(8-7) choose two Which two statements are true regarding views? (Choose two.) A) A simple view in which column aliases have been used cannot be upd 阅读全文
posted @ 2019-02-26 17:07
cnblogs_5359
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39.choose the best answer View the Exhibit and examine the description of the EMPLOYEES table. You want to calculate the total remuneration for each e 阅读全文
posted @ 2019-02-26 16:36
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38.choose the best answer View the Exhibit and examine the data in the PROMOTIONS table. PROMO_BEGIN_DATE is stored in the default date format, dd-mon 阅读全文
posted @ 2019-02-26 16:08
cnblogs_5359
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19.choose the best answer View the Exhibit and examine the structure of the PROMOTIONS table. Evaluate the following SQL statement: SQL>SELECT promo_n 阅读全文
posted @ 2019-02-26 15:19
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