You recently added a third-party application to your database and do not have access to the SQL code of this application. Database users are complaining of performance-related issues， such as increased time required to complete a query. While investigating， you discover from the STATSPACK utility that some of the memory structures have low hit ratios. You plan to resize some of the memory structures by using the Memory Advisor. For which memory structure will you fail to obtain optimal settings by using the Memory Advisor？（） java pool。 shared pool。 buffer cache。 program global area。
主要病征类型：
微生物吸收养料的方式及特点和代表？
简述维持与改善关节活动范围的训练方法的适应证和禁忌证。
Evaluate these two SQL statements: SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary, hire_date FROM EMPLOYEES 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.。
无形资产能存在于其载体的前提是（）。
