You issue this SQL statement: ALTER DATABASE RENAME FILE ’/ORADATA/u02/user_data01.dbf’ TO ’/ORADATA/u04/user_data01.dbf’; What does this SQL statement do?()
A. It updates the control file with the new location of the data file.
B. It updates only the data dictionary with the new location of the data file.
C. It changes the location of the user_data01.dbf file in the operating system.
D. It changes the location of the user_data01.dbf file in the operating system and updates the control file with the new location of the data file.
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下列哪些属于人力资源部门的安全职责()
A. 建立健全劳动保护、安全教育培训、业绩考核的管理规定和制度
B. 配合制定年度安全技术劳动保护措施计划
C. 配合有关部门做好工伤认定工作
第十二届全运会主赛区沈阳赛区主题口号是()。
A. 全民参与,健康生活
B. 全民参与,共享生活
C. 文明参与,全民健身
Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning-Tree plus?()
A. PortFast
B. UplinkFast
C. loop guard
D. root guard
E. BPDU guard
F. BackboneFast
影响地价的社会因素主要包括()等几个方面。
A. 政治安定状况
B. 社会治安程度
C. 税收政策
D. 房地产投机
E. 交通管制