题目
A.
B.
C.
D.
E. The SQL statement produces an error.
第2题
Examine the data of the EMPLOYEES table.EMPLOYEES (EMPLOYEE_ID is the primary key. MGR_ID is the ID of managers and refers to the EMPLOYEE_ID)Which statement lists the ID, name, and salary of the employee, and the ID and name of the employee‘s manager, for all the employees who have a manager and earn more than 4000?()
A.
B.
C.
D.
E.
第3题
A.
B.
C.
D.
第4题
186 Methods and techniques used to examine cost and technical data are called feasibility studies. The economic aspects of a feasibility study include interest rates, present worth factors, operating costs, depreciation and _____.
A. Capitalization costs.
B. Technical skill requirements.
C. Technology forecasting.
D. Strategic marketing intelligence.
E. All of the above
第5题
104 Methods and techniques used to examine cost and technical data are called feasibility studies. The economic aspects of a feasibility study include interest rates, present worth factors, operating costs, depreciation and _____.
A. Capitalization costs.
B. Technical skill requirements.
C. Technology forecasting.
D. Strategic marketing intelligence.
E. All of the above.
第6题
A. 1 - Oracle Loader, 2 - Oracle Data Pump, 3 - Direct Path API
B. 1 - Oracle Data Pump, 2 - Direct Path API, 3 - Oracle Loader
C. 1 - Direct Path API, 2 - Oracle Loader, 3 - Oracle Data Pump
D. 1 - Oracle Loader, 2 - Direct Path API, 3 - Oracle Data Pump
第7题
A. It collects statistics into the pending area in the data dictionary
B. It creates a virtual hidden column in the CUSTOMERS_OBE table
C. It collects statistics with AUTO_SAMPLE_SIZE for ESTIMATE_PERCENT
D. It creates a histogram to hold skewed information about the data in the columns
第8题
You examine drive E. The hard disk is configured as shown in the Local Disk Properties exhibit.
You want the users to be able to add data, and you want to minimize administrative overhead. What should you do?
A.Increase the maximum file size of Sales_Data to 1,500MB.
B.Use the DBCC SHRINKDATABASE statement.
C.Set automatic file growth to 10 percent.
D.Create another data file named Sales_Data2 in a new SECONDARY filegroup.
第9题
A. The data file is checked for physical corruption and backed up if found clean.
B. The backup of data file 5 is performed and the interactive messages during the backup are suppressed.
C. The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.
D. The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed
第10题
A.
B.
C.
D. The query fails because the subquery returns more than one row.
E. The query fails because the outer query and the inner query are using different tables.
为了保护您的账号安全,请在“赏学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!