Youre performing tablespace point-in-time recovery on a tablespace called USERS. If an object in that tablespace has a foreign key constraint owned by another object in the INDEX_TBS which statement is true？（） You cannot perform the TSPITR with the constraints enabled.。 You must perform the TSPITR recovery of both tablespaces for it to be successful.。 You can perform TSPITR only on the USERS tablespace.。 RMAN will determine if the INDEX_TBS tablespace must also be duplicated and will duplicate it automatically.。 The TSPITR will only be successful if the constraint is enabled.。
社会实践的基本要求是（） 加强个人活动。 因地制宜与因材施教。 重视综合效益。 加强领导与保障安全。 明确的目的性与周密的计划性。
Evaluate these two SQL statements: SELECT last_name, salary, hire_dateFROM EMPLOYEES ORDRE BY salary DESC; SELECT last_name, salary, hire_dateFROM EMPOLYEES ORDER BY 2 DESC; What is true about them? （） The two statements produce identical results.。 The second statement returns a syntax error.。 There is no need to specify DESC because the results are sorted in descending order by default.。 The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.。
设备修理，拆卸时一般应（）。 先内后外。 先上后下。 先内后上。 先内后下。
纳税人通过合法的手段以纳税最优化为目的，在纳税决策中所作的决策称为（）。 税收。 避税。 节税。 逃税。
化学毒物在体内的吸收、分布和排泄过程称为（）。
