View the Exhibit for some of the parameter settings. You start a session and issue the fol
View the Exhibit for some of the parameter settings. You start a session and issue the following command:SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;What is the outcome of the above command？（）
A. The index is not used by the optimizer but is maintained during DML operations.
B. The index is not used by the optimizer and is not maintained during DML operations.
C. The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.
D. The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.
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The novel contains some marvellously revealing ______ of rural life in the 19th century.A．
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He failed to carry out some of the provisions of the contract, and now he has to ______ th
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The novel contains some marvelously revealing ______ of rural life in the 19th century.[19
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What were some of the factors that contributed to the tulip craze in the Netherlands in th
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What can we infer about the company？A．The company cannot reserve some accommodation for th
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What is the main cause of unhappiness for many Americans in the authors view？A．The energy
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