题目内容

You perform the following activities during the database upgrade from Oracle Database 10g to Oracle Database 11g: 1. Capture plans for a SQL workload into a SQL Tuning Set (STS) before upgrade. 2. Load these plans from the STS into the SQL plan baseline immediately after the upgrade. What is the reason for performing these activities? （）

A. to minimize plan regression due to the use of a new optimizer version
B. to completely avoid the use of new plans generated by a new optimizer version
C. to prevent plan capturing when the SQL statement is executed after the database upgrade
D. to keep the plan in the plan history so that it can be used when the older version of the optimizer is used

查看答案

搜索结果不匹配？点我反馈

更多问题

纸币暂存区最多可容纳（）张纸币。

A. 5
B. 10
C. 15
D. 20

男孩，3岁，发热3天，头痛，呕吐4次，嗜睡，伴抽搐2次。体检：体温39．5℃，神志清，嗜睡，颈强直(+)，心、肺无异常，腹壁、提睾反射未引出，克氏征、布氏征均阳性，疑流行性乙型脑炎。确诊流行性乙型脑炎的辅助检查是（）

A. 脑脊液培养
B. 脑脊液生化
C. 脑脊液中特异性IgM抗体
D. 血常规
E. 脑脊液常规及生化

刘某，男性，75岁。渐进性排尿困难3年余，夜尿5～6次，直肠指检：前列腺Ⅲ度，光滑弹性硬，中间沟消失，血Cr：100μmol/L。B超：残余尿200ml，前列腺侧叶增大，中叶无明显增长，心脏、肝功能正常，尿常规正常，此患者应采取的治疗为（）。

A. 膀胱造瘘术
B. 药物治疗
C. 前列腺尿道网状支架
D. 经膀胱前列腺切除术
E. 经耻骨后前列腺切除术

原始凭证审核，主要是审核其（）、（）、规范性和合法性。