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20.choose two Examine the description of the EMP_DETAILS table given below: Which two statements are true regarding SQL statements that can be execute 阅读全文
posted @ 2019-02-19 11:53
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1.choose the best answerWhat is the primary difference between the relational database (RDB) andobject-oriented database (OODB) models?A) RDB allows t 阅读全文
posted @ 2019-02-19 10:56
cnblogs_5359
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18、（8-7） choose twoWhich two statements are true regarding views? (Choose two.) A) A simple view in which column aliases have been used cannot be upda 阅读全文
posted @ 2019-02-19 10:06
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17、（7-11） choose twoView the Exhibit and examine the structure of ORDER_ITEMS and ORDERS tables.You need to remove from the ORDER_ITEMS table those ro 阅读全文
posted @ 2019-02-19 09:25
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