Oracle database 11g

Bài giảng Quản trị cơ sở dữ liệu Oracle Chương 1 Giới thiệu về hệ quản trị cơ sở dữ liệu Oracle nhằm giới thiệu về Oracle, các sản phẩm của Oracle, cài đặt Oracle 11g, sử dụng dịch vụ DBCA, tạo mới cơ sở dữ liệu, tạo database template, xóa cơ sở dữ liệu. Được thành lập năm 1977, do Larry Ellison giai đoạn đầu thành lập, sản phẩm chủ yếu của Oracle là về hệ quản trị CSDL. Từ năm 1989 bắt đầu phát triển các ứng dụng lớn dùng trong doanh nghiệp.

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Bài giảng "Hệ quản trị cơ sở dữ liệu Oracle - Chương 3: Kiến trúc Oracle 11g" cung cấp cho người học các kiến thức: Kiến trúc cơ sở dữ liệu Oracle, PGA - Program global area, Oracle instance, database buffer cache,... Mời các bạn cùng tham khảo.

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Nội dung chính của Bài giảng Quản trị cơ sở dữ liệu Oracle Chương 3 Kiến trúc Oracle 11 g nhằm trình bày về kiến trúc cơ sở dữ liệu Oracle. Oracle Database 11g là phiên bản mới nhất được giới thiệu bởi Oracle.

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OCA: Oracle Database 11g Administrator Certified Associate Study Guide- P24: There is high demand for professionals in the information technology (IT) industry, and Oracle certifications are the hottest credential in the database world. You have made the right decision to pursue certification, because being Oracle Database 11g certified will give you a distinct advantage in this highly competitive market.

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Oracle RMAN 11g Backup and Recovery- P15: Oracle, yet another edition of our RMAN backup and recovery book has hit the shelves! Oracle Database 11g has proven to be quite the release to be sure. RMAN has new functionality and whizbang new features that improve an already awesome product. RMAN has certainly evolved over the years, as anyone who started working with it in Oracle version 8 can attest to.

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Tham khảo tài liệu 'oca: oracle database 11g administrator certified associate- p26', công nghệ thông tin, cơ sở dữ liệu phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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Critical Database Concepts new features include “invisible” indexes, simplified table maintenance, and editioned objects. You should evaluate your previous architecture decisions in light of the new features available. In the next several chapters, you will see how to install Oracle Database 11g and how to upgrade to Oracle Database 11g from prior releases. Following those chapters, you will see an overview of application planning, followed by many chapters on the use of SQL, PL/SQL, Java, object-oriented features, and XML to get the most out of your Oracle database.

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Oracle Server Technologies and the Relational Paradigm The relational paradigm is highly efficient in many respects for many types of data, but it is not appropriate for all applications. As a general rule, a relational analysis should be the first approach taken when modeling a system. Only if it proves inappropriate should one resort to nonrelational structures. Applications where the relational model has proven highly effective include virtually all Online Transaction Processing (OLTP) systems and Decision Support Systems (DSS).

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Introduction to the Oracle Server Technologies avoids these issues by formatting a report’s output as XML tags. Any client can request an XML Publisher report and (provided it has an XML parser) display the results. This is the key to distributing reports over wireless protocols to any device, such as a cellular telephone. Oracle Discoverer is an end-user tool for report generation. Oracle Reports and XML Publisher need a programmer to design the report.

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These enhancements are briefly reviewed in the following subsections. Chapter 3 covers the SIMPLE_INTEGER datatype. Chapter 4 covers the continue statement. Chapter 6 demonstrates the cross-session PL/SQL function result cache, and both mixed, named, and positional notation calls. Automatic subprogram inlining and the PL/SQL Native Compiler are covered in Chapter 9. Chapter 16 covers web application development and the multiprocess connection pool.

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Referential Integrity Values The referential integrity or FOREIGN KEY constraint is more complicated than the others we have covered so far because it relies on another table to restrict what values can be entered into the column with the referential integrity constraint. In the preceding example, a FOREIGN KEY is declared on the Customer_Number column; any values entered into this column must also exist in the Customer_Number column of another table (in this case, the CUSTOMER table).

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For simplicity, in the example we have assumed that a new map is created at the end of every step. This is certainly a possibility, but it is not necessarily the best option. Later in this book, we will discuss data modeling and how to optimize the sequence of operations. In particular, Chapters 8 and 9 cover spatial operators and functions that make it possible to cluster some of the steps in the example into single queries, making the process much simpler and more efficient.

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One of the important new features of the Oracle 11g database is the new DDL locking duration control feature. The ddl_lock_timeout parameter lets you specify the length of time a DDL statement will wait for a DML lock. This feature comes in handy when you want to perform online reorganization, where a DML lock by a user may prevent a DDL operation from succeeding.

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How to Become an Oracle DBA As you start out on your journey to become a proficient Oracle DBA, you have many sources of information on the Oracle database: • Oracle Database 11g database administration classes, which have now been boiled down to a pair of five-day long classes • Oracle manuals—an entire library of which are available on the Oracle web sites • Books from various publishers that impart the various pieces of knowledge you need to become an accomplished Oracle DBA You’ll also need to acquire the necessary operating system knowledge.

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