Chương 1. DATA DICTIONARY, VIEWS VÀ PACKAGES
1.1.DATA DICTIONARY VÀ VIEWS
1.1.1. Data Dictionary
Data dictionary hay từ điển dữ liệu hệ thống là phần rất quan trọng trong Oracle database. Đó là một tập hợp các table và các view sử dụng cho việc tham chiếu đến các thông tin liên quan tới database. Data dictionary được tạo bởi file script sql.bsq trong quá trình tạo database. Data dictionary bao gồm các thông tin trung tâm của Oracle server.
In order to understand how a computer is able to manipulate data and perform computations, you must rst understand how data is represented by a computer. At the lowest level, the indivisible unit of data in a computer is a bit. A bit represents a single binary value, which may be either 1 or 0.
A comprehensive treatment focusing on the creation of efficient data structures and algorithms, this text explains how to select or design the data structure best suited to specific problems. It uses C++ as the programming language and is suitable for second-year data structure courses and computer science courses in algorithmic analysis.
This book will introduce you to one of the most important extensions to PHP that are available, starting with PHP version 5.0—the PHP Data Objects, commonly known as PDO.
PHP grew in to a very popular web programming language due to its simplicity and ease of use. One of the key factors of this growing success is the built-in possibility to access many popular relational database management systems (RDBMS), such as MySQL, PostgreSQL, and SQLite, to name just a few.
BOOK DESCRIPTION This book offers a highly accessible introduction to Natural Language Processing, the field that underpins a variety of language technologies, ranging from predictive text and email filtering to automatic summarization and translation. With Natural Language Processing with Python, you’ll learn how to write Python programs to work with large collections of unstructured text. You’ll access richly-annotated datasets using a comprehensive range of linguistic data structures.
The authors present the complete guide to ANSI standard C language programming. Written by the developers of C, this new version helps readers keep up with the finalized ANSI standard for C while showing how to take advantage of C's rich set of operators, economy of expression, improved control flow, and data structures. The 2/E has been completely rewritten with additional examples and problem sets to clarify the implementation of diff
Amazing! You’re actually reading this. That puts you into one of three categories: a student who is
being forced to read this stuff for a class, someone who picked up this book by accident (probably
because you have yet to be indoctrinated by the world at large), or one of the few who actually have an
interest in learning assembly language.
Greetings! You just entered the world of ASP.NET 3.5 For Dummies. In
case you weren’t told on the way in, ASP.NET is Microsoft’s technology
for building dynamic, interactive, data-driven Web pages. The primary tool
for creating ASP.NET sites is Visual Web Developer (VWD), which you use
throughout this book.
Wait a minute! An introduction to an introduction is not only wordy and
redundant, it’s superfluous and unnecessary.
Python for Data Analysis is concerned with the nuts and bolts of manipulating, processing, cleaning, and crunching data in Python. It is also a practical, modern introduction to scientific computing in Python, tailored for data-intensive applications. This is a book about the parts of the Python language and libraries you’ll need to effectively solve a broad set of data analysis problems. This book is not an exposition on analytical methods using Python as the implementation language.
SQL commands can be classiﬁed in to three types:
Data Deﬁnition Language commands (DDL)
Data Manipulation Language commands (DML)
Data Control Language commands (DCL)
DDL commands are used to deﬁne a database, including creating, altering, and dropping tables and establishing constraints.
DML commands are used to maintain and query a database, including updating, inserting, modifying, and querying data.
DCL commands are used to control a database including administering privileges and saving of data....
Data warehousing software works to manage a repository of large amount of data. It includes a series of features and functions that allow for easier reporting and analysis. IBM uses its InfoSphere Warehouse product to support data warehousing. InfoSphere Warehouse is based on the DB2 database server. Learn how to use DB2 first with DB2 Express-C, the no-charge edition of DB2!.
Synopsis by Rebecca Rohan Once you've learned to program, you run into real-world problems that require more than a programming language alone to solve. Data Structures and Algorithms in Java is a gentle immersion into the most practical ways to make data do what you want it to do. Lafore's relaxed mastery of the techniques comes through as though he's chatting with the reader over lunch, gesturing toward appealing graphics. The book starts at the very beginning with data structures and algorithms, but assumes the reader understands a language such as Java or C++.
.Undergraduate Topics in Computer Science
.Undergraduate Topics in Computer Science (UTiCS) delivers high-quality instructional content for undergraduates studying in all areas of computing and information science. From core foundational and theoretical material to ﬁnal-year topics and applications, UTiCS books take a fresh, concise, and modern approach and are ideal for self-study or for a one- or two-semester course. The texts are all authored by established experts in their ﬁelds, reviewed by an international advisory board, and contain numerous examples and problems.
Visual Studio projects: A project contains source code files, settings and resources for an application
May contain references to class libraries
May contain data used by application
Building a project:
Compiles source files
Copies non-source files to output folder
Creates an assembly in output folder
Building a solution builds all its projects
Declaration Statements Declare Variables
int intNumberOfStudents ;
CONST used to declare Named Constants
Const single sngDISCOUNT_RATE = 0.2f;
Name, follow Naming Convention Rules
Required Value for Constants
Optional Initial Value for Variables
This book is about data analysis and the programming language called R. This is rapidly
becoming the de facto standard among professionals, and is used in every conceivable discipline
from science and medicine to business and engineering.
R is more than just a computer program; it is a statistical programming environment and language. R
is free and open source and is therefore available to everyone with a computer. It is very powerful and
flexible, but it is also unlike most of the computer programs you are likely used to.
Learn to build configuration file readers, data readers, model-driven code generators, source-to-source translators, source analyzers, and interpreters. You don't need a background in computer science--ANTLR creator Terence Parr demystifies language implementation by breaking it down into the most common design patterns. Pattern by pattern, you'll learn the key skills you need to implement your own computer languages.
The authors present the complete guide to ANSI standard C language programming. Written by the developers of C, this new version helps readers keep up with the finalized ANSI standard for C while showing how to take advantage of C's rich set of operators, economy of expression, improved control flow, and data structures. The 2/E has been completely rewritten with additional examples and problem sets to clarify the implementation of difficult language constructs.
Data Structures and Algorithm Analysis Edition 3.2 (Java Version) a comprehensive treatment focusing on the creation of efficient data structures and algorithms, this text explains how to select or design the data structure best suited to specific problems. It uses Java as the programming language and is suitable for second-year data structure courses and computer science courses in algorithmic analysis.
JR is a language for concurrent programming. It is an imperative language
that provides explicit mechanisms for concurrency, communication, and synchronization.
JR is an extension of the Java programming language with additional
concurrency mechanisms based on those in the SR (Synchronizing
Resources) programming language. It is suitable for writing programs for both
shared- and distributed-memory applications and machines; it is, of course, also
suitable for writing sequential programs.