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44、(9-12)choose all that apply View the Exhibit and examine the details of the ORDER_ITEMS table. Evaluate the following SQL statements: Statement 1: 阅读全文
posted @ 2019-02-27 11:44
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43、(9-2)choose three Which three tasks can be performed by DDL statements? A) preventing data retrieval from a table outside of office hours B) modify 阅读全文
posted @ 2019-02-27 11:11
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42、(9-1)choose the best answer: Which statement is true about the Oracle SQL, DELETE and TRUNCATE statements? A) DELETE but not TRUNCATE statement can 阅读全文
posted @ 2019-02-27 10:35
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41、(8-14) choose two View the Exhibit and examine the structure of the ORDERS table. The columns ORDER_MODE and ORDER_TOTAL have the default values 'd 阅读全文
posted @ 2019-02-27 09:50
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