Databases and database management systems

The objectives of the study are determining factors and the level of impact of each factor on the application of ERP systems in textile enterprises in Vietnam. Six factors that affect the application of ERP in Vietnam textile companies by Regression Model have been found out, including support from senior management, effective project management, change management, support from consulting companies, training, and users.

10p tuetuebinhan000 23-01-2025 2 2   Download

Chương 11 trang bị cho người học những kiến thức về thiết kế và điều chỉnh dữ liệu mức vật lý. Những nội dung cơ bản được trình bày trong chương này gồm có: Thiết kế dữ liệu mức vật lý, lựa chọn Indexes, clustering and indexing, clustering and joins,... Mời các bạn cùng tham khảo.

58p kiepnaybinhyen_02 25-12-2015 55 4   Download

Bài giảng Hệ quản trị cơ sở dữ liệu - Chương 7 giới thiệu về ngôn ngữ SQL. Chương này trình bày một số nội dung cơ bản như: Câu truy vấn cơ bản; union, intersect, and except; nested queries;...và một số nội dung khác, mời các bạn cùng tham khảo.

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Bài giảng Kiến trúc cài đặt cơ sở dữ liệu - Chương 3: Sao lưu và khôi phục dữ liệu (Backup and recovery). Những nội dung chính được trình bày trong chương này gồm có: Mô hình recovery, chiến lược backup, chiến lược restore. Mời các bạn cùng tham khảo.

0p nomoney3 10-02-2017 111 11   Download

Bài giảng Kiến trúc cài đặt cơ sở dữ liệu: Chương 2 - Nhập xuất dữ liệu (Exporting and importing data). Chương này gồm có những nội dung chính sau: Lệnh BCP, lệnh BULK INSERT, import and export wizard, project SSIS. Mời các bạn cùng tham khảo.

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In this chapter you will: To understand how firms create an internal database, to learn about building a database from a Web site, to become familiar data mining, to understand the advantages and disadvantages of of using secondary data, to understand the role of the Internet in obtaining secondary data, to learn about types of information management systems.

13p allbymyself_06 28-01-2016 68 4   Download

Lecture "Chapter 13: Designing databases" provides students with the knowledge: Learning objectives, databases and database management systems, components of a DB and DBMS, DBMS important capabilities, relational databases, partial display of relational database,... Invite you to consult.

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After completing this lesson, you should be able to do the following: Describe different system architectures Describe the primary steps of OS tuning Identify similarities between OS and DB tuning Understand virtual memory and paging Explain the difference between a process and a thread

14p trinh02 28-01-2013 50 5   Download

Users and Security Security domain The database administrator defines the names of the users who are allowed to access a database. A security domain defines the settings that apply to the user. Authentication mechanism A user who requires access to the database can be authenticated by one of the following: Data dictionary Operating system Network The means of authentication is specified at the time the user is defined in the database and can be altered later. This lesson covers authentication by database and by operating system only.

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Built-In Database Objects In addition to creating the database files, several other structures are created. Data dictionary: Contains descriptions of the objects in the database Dynamic performance tables: Contains information used by the database administrator (DBA) to monitor and tune the database and instance PL/SQL packages: Program units adding functionality to the database. These packages are created when the catproc.sql script is run after the CREATE DATABASE command. PL/SQL packages will not be discussed within the scope of this course.

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Before a database is created, the UNIX environment must be configured and the Oracle9i server must have already been installed. Four environment variables must be set: ORACLE_HOME, ORACLE_SID, PATH, LD_LIBRARY_PATH. ORACLE_HOME is the full path to the top directory in which the Oracle9i Server is installed. The directory for ORACLE_HOME should be supplied by the person who installed the server, usually the UNIX administrator or the DBA. ORACLE_SID is a user-definable name assigned to an instance of a database.

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Since 1978, Intel's processors have evolved from the 8086 and the 8088 to the 80286, 80386, and 80486, to the Pentium family of processors. All are part of the 80x86 line. Intel's Pentium family of processors includes the Pentium, Pentium Pro, Pentium with MMX, Pentium II, Pentium III, Celeron, and Xeon processors. The earliest Intel processors included only a few thousand transistors. Today's Pentium processors include 9.5 million transistors or more.

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With a pen-based system, you use an electronic pen to write on the screen and choose commands. Pens are common input devices for handheld computers, like “personal digital assistants (PDAs).” Pens are handy for making notes or selecting commands, not for inputting a lot of text.

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Database Systems: The Complete Book- P13: Database Systems and Database Design and Application courses offered at the junior, senior and graduate levels in Computer Science departments. Written by well-known computer scientists, this introduction to database systems offers a comprehensive approach, focusing on database design, database use, and implementation of database applications and database management systems

19p baby246 18-08-2010 82 7   Download

Database Systems: The Complete Book- P12: Database Systems and Database Design and Application courses offered at the junior, senior and graduate levels in Computer Science departments. Written by well-known computer scientists, this introduction to database systems offers a comprehensive approach, focusing on database design, database use, and implementation of database applications and database management systems

20p baby246 18-08-2010 75 7   Download