TAILIEUCHUNG - OCA /OCP Oracle Database 11g A ll-in-One Exam Guide- P18

OCA /OCP Oracle Database 11g A ll-in-One Exam Guide- P18:There is an ever increasing demand for staff with IT industry certification. The benefits to employers are significant—they can be certain that staff have a certain level of competence—and the benefits to the individuals, in terms of demand for their services, are equally great. Many employers are now requiring technical staff to have certifications, and many IT purchasers will not buy from firms that do not have certified staff. | OCA OCP Oracle Database 11g All-in-One Exam Guide 126 TIP There is some overlap between V views and data dictionary views. For instance V TABLESPACE has a row for every tablespace as does DBA. TABLESPACES. Note that as a general rule V views are singular and data dictionary views are plural. But there are exceptions. Exercise 3-4 Query Data Dictionary and Dynamic Performance Views In this exercise investigate the physical structures of the database by querying views. 1. Connect to the database with SQL Plus or SQL Developer. 2. Use dynamic performance views to determine what datafiles and tablespaces make up the database as well as the size of the datafiles select from v tablespace t join v datafile d on order by 3. Obtain the same information from data dictionary views select tablespace_name file_name bytes from dba_data_files order by tablespace_name 4. Determine the location of all the controlfile copies. Use two techniques select from v controlfile select value from v parameter where name control_files 5. Determine the location of the online redo logfile members and their size. As the size is an attribute of the group not the members you will have to join two views select from v log g join v logfile m on order by Two-Minute Drill Describe the Stages of Database Startup and Shutdown The stages are NOMOUNT MOUNT and OPEN. NOMOUNT mode requires a parameter file. MOUNT mode requires the controlfile. OPEN mode requires the datafiles and online redo logfiles. Set Database Initialization Parameters Static parameters cannot be changed without a shutdown startup. Other parameters can be changed dynamically for the instance or a session. Parameters can be seen in the dynamic performance views V PARAMETER and V SPPARAMETER. Chapter 3 Instance Management 127 Use the Alert Log and Trace Files The alert log contains a continuous stream of messages regarding critical operations. .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.