sql - a beginner''s guide, 2nd edition (2003)

... Query Language (SQL) to create and alter database objects, add data to and delete data from the database, modify data that has been added to that database, and of course, retrieve data stored ... chapter. Understand Relational Databases Structured Query Language (SQL) supports the creation and maintenance of the relational database and the management of data within that database. However,...

Ngày tải lên: 20/02/2014, 11:20

... on. A NIC, for example, is part of the physical layer. Data-Link Layer The data-link layer, layer 2, defines standards that assign meaning to the bits carried by the physical layer. It establishes ... 28 Physical Layer 30 Data-Link Layer 30 Network Layer 30 Transport Layer 31 Session Layer 31 Presentation Layer 31 Application Layer 32 Understanding How Data Travels Through the OSI Layers...

Ngày tải lên: 27/06/2014, 00:20

... 44 Comparing Rings to Stars and Buses 46 Demystifying Network Cabling 47 Overview of Basic Cable Types 47 Twisted-Pair Cabling: The King of Network Cables 48 Coaxial Cable 52 Installing and Maintaining ... 147 Practices and User Education 148 Understanding External Threats 149 Front-Door Threats 150 Back-Door Threats 152 DoS Threats 153 Viruses and Other Malicious Software 154 Chapter Summar...

Ngày tải lên: 05/07/2014, 04:20

... the Virtual Machine 384 Installing VMware Tools 386 Backing Up Virtual Machine Data 388 Chapter Summary 388 Appendix Understanding the Sarbanes-Oxley Act 389 Sarbanes-Oxley Act Summary 390 Title ... Fedora 361 Downloading and Installing Apache Web Server 361 Administering Apache Web Server 363 Stopping and Starting Apache 363 Changing the Apache Configuration 363 Publishing Web Pages 364 Chap...

Ngày tải lên: 05/07/2014, 04:20

... some big drawbacks. Because all the subcables that make up the segment and run from node to node must be connected at all times, and because a failure in any part of the segment will cause the ... words standing for its inventors, Mr. Paul Neill of Bell Labs and Carl Concelman of Amphenol Corporation). BNC is a bayonet-style connector that quickly attaches and detaches with a quarte...

Ngày tải lên: 05/07/2014, 04:20

... implemented language for relational databases. SQL not only allows you to manage data within the database, but also manage the database itself. By using SQL statements, you can access an SQL database ... Structured Query Language (SQL) to create and alter database objects, add data to and retrieve data from the database, and modify data that has been added to that database. SQL is the...

Ngày tải lên: 26/10/2014, 21:32