Creating a database

Bài giảng Phát triển ứng dụng Web: Bài 3 PHP Database cung cấp cho người học những kiến thức như: PHP MySQL Introduction; PHP MySQL Connect to a Database; PHP MySQL Create Database and Tables; PHP MySQL Insert Into; PHP MySQL Select; PHP MySQL The Where Clause; PHP MySQL Order By Keyword; PHP MySQL Update; PHP MySQL Delete; MySQL và Font Unicode; MySQLi.

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Module 2: Automating an installation of Microsoft Windows XP Professional. The following topics are covered in this module: Introduction to automating an installation of Windows XP Professional; creating answer files; creating a uniqueness database file; performing an automated installation of Windows XP Professional; overview of creating and deploying an image; preparing a reference computer; creating, testing, and deploying an image; managing security settings by using security center.

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Bài giảng "Bảo mật cơ sở dữ liệu - Chapter 7: Database auditing models" trình bày các nội dung: Gain an overview of auditing fundamentals, understand the database auditing environment, create a flowchart of the auditing process, list the basic objectives of an audit. Mời các bạn cùng tham khảo.

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Chapter 3 - Structured Query Language. After completing this unit, you should be able to: Learn basic SQL statements for creating database structures, learn SQL statements to add data to a database, learn basic SQL SELECT statements and options for processing a single table, learn basic SQL SELECT statements for processing multiple tables with subqueries,...

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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.

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Chapter 7 discusses how to design a relational database schema based on a conceptual schema design. This chapter presented a high-level view of the database design process, and in this chapter we focus on the logical database design or data model mapping step of database design. We present the procedures to create a relational schema from an Entity-Relationship (ER) or an Enhanced ER (EER) schema.

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McGraw-Hill/Irwin © 2004 The McGraw-Hill Companies, Inc., All Rights Reserved. .Direct Marketing Defined “The total of activities by which the seller . . . direct efforts to a target audience using one or more media for the purpose of soliciting a response by phone, mail, the internet or personal visit from a prospective customer.” Includes: Direct selling Direct mail Telemarketing Internet selling Direct action marketing Catalog selling Television/ print media Cable TV .

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After completing this lesson, you should be able to do the following: Describe the features of multitable inserts Use the following types of multitable inserts Unconditional INSERT Pivoting INSERT Conditional ALL INSERT Conditional FIRST INSERT Create and use external tables Name the index at the time of creating a primary key constraint

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After completing this lesson, you should be able to do the following: Interpret the concept of a hierarchical query Create a tree-structured report Format hierarchical data Exclude branches from the tree structure

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After completing this lesson, you should be able to do the following: Use the ROLLUP operation to producesubtotal values Use the CUBE operation to produce cross-tabulation values Use the GROUPING function to identify the row values created by ROLLUP or CUBE Use GROUPING SETS to produce a single result set

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Managing Privileges A privilege is a right to execute a particular type of SQL statement or to access another user’s object. These include the right to: Connect to a database Create a table Select rows from another user’s table Execute another user’s stored procedure System privileges Each system privilege allows a user to perform a particular database operation or class of database operations; for example, the privilege to create tablespaces is a system privilege.

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After completing this lesson, you should be able to do the following: Explain the role of the DBA in tuning applications Move tables using the ALTER TABLE command Redefine a table online Create different types of indexes Build and manage index-organized tables Explain and plan OLTP, DSS, and hybrid systems

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Profiles A profile is a named set of the following password and resource limits: Password aging and expiration Password history Password complexity verification Account locking CPU time Input/output (I/O) operations Idle time Connect time Memory space (private SQL area for Shared Server only) Concurrent sessions After a profile has been created, the database administrator can assign it to each user. If resource limits are enabled, the Oracle server limits the database usage and resources to the defined profile of the user....

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This workshop covers: Creating tables and sequences Modifying data in the tables Modifying table definitions Creating views Writing scripts containing SQL and iSQL*Plus commands Generating a simple report

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Classification of Indexes An index is a tree structure that allows direct access to a row in a table. Indexes can be classified based on their logical design or on their physical implementation. The logical classification groups indexes from an application perspective, while the physical classification is derived from the way the indexes are stored. Single column and concatenated indexes A single column index has only one column in the index key—for example, an index on the employees number column of an employees table.

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A sequence: Automatically generates unique numbers Is a sharable object Is typically used to create a primary key value Replaces application code Speeds up the efficiency of accessing sequence values when cached in memory

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After completing this lesson, you should be able to do the following: Describe a view Create, alter the definition of, and drop a view Retrieve data through a view Insert, update, and delete data througha view Create and use an inline view Perform “Top-N” analysis

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Name a constraint or the Oracle server generates a name by using the SYS_Cn format. Create a constraint either: At the same time as the table is created, or After the table has been created Define a constraint at the column or table level. View a constraint in the data dictionary.

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After completing this lesson, you should be able to do the following: Produce queries that require a substitution variable Customize the iSQL*Plus environment Produce more readable output Create and execute script files

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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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