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60、(16-10) choose the best answer: Evaluate the following SQL commands: SQL>CREATE SEQUENCE ord_seq INCREMENT BY 10 START WITH 120 MAXVALUE 9999 NOCYC 阅读全文
posted @ 2019-03-05 14:26
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59、(16-8)choose two: Which two statements are true regarding the USING and ON clauses in table joins? A) The ON clause can be used to join tables on c 阅读全文
posted @ 2019-03-05 13:11
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58、(16-1) choose the best answer: Examine the structure of the BOORSTRANSACTIONS table: Examine the SQL statement: SQL> SELECT FROM books_transactions 阅读全文
posted @ 2019-03-05 11:35
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57、(14-17) choose two: Examine the structure of the DEPARTMENTS table You execute the following command: SQL> ALTER TABLE departments SET UNUSED (coun 阅读全文
posted @ 2019-03-05 10:21
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