游戏性体验
You are connected using SQL* Plus to a multitenant container database (CDB) with SYSDBA privilegesand execute the following sequence statements:What is the result of the last SET CONTAINER statement and why is it so?（） It succeeds because the PDB_ADMIN user has the required privileges.。 It fails because common users are unable to use the SET CONTAINER statement.。 It fails because local users are unable to use the SET CONTAINER statement.。 If fails because the SET CONTAINER statement cannot be used with PDB$SEED as the target pluggable database (PDB).。
The users request that [F2], [F3], and [F4] be used to commit, rollback, and exit,respectively. How do you accomplish this?（） Add the appropriate PL/SQL code for each key. 。 Map the logical keys to the physical keys, then add the appropriate PL/SQL code for each key.。 Create an object library to define the key triggers, then reference the object library in the form. 。 This cannot be accomplished because other function keys provide this functionality by default.。
企业的广告行为对市场结构的影响主要表现在（） 广告会增强进入壁垒。 广告会导致产业市场集中度的提高。 广告会减少进入壁垒。 广告本身也是产品差异的一个组成部分。
无雇工的个体工商户、未在用人单位参加基本养老保险的非全日制从业人员以及其他灵活就业人员参加基本养老保险的，应当按照国家规定缴纳基本养老保险费，并全部记入基本养老保险统筹基金。
Given that the current directory is empty， and that the user has read and write privileges to the current directory， and the following：
Which statement is true？（）
