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76、View the exhibit and examine the description of the DEPARTMENTSand EMPLOYEEStables. The retrieve data for all the employees for their EMPLOYEE_ID, 阅读全文
posted @ 2019-03-11 16:10
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75、Which statements are correct regarding indexes? (Choose all that apply.) A. A non-deferrable PRIMARY KEYor UNIQUE KEYconstraint in a table automati 阅读全文
posted @ 2019-03-11 13:04
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74、View the exhibit and examine the structure of ORDERS and CUSTOMERS tables. ORDERS Name Null? Type ORDER_ID NOT NULL NUMBER(4) ORDER_DATE NOT NULL D 阅读全文
posted @ 2019-03-11 11:58
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73、Which statement correctly grants a system privilege? A. GRANT CREATE VIEW ON table1 TO user1; B. GRANT ALTER TABLE TO PUBLIC; C. GRANT CREATE TABLE 阅读全文
posted @ 2019-03-11 11:19
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