List of database servers - List of database servers Adabas DB2 Firebird Informix InterBase Microsoft_SQL_Server MySQL Oracle PostgreSQL SapDB SQLite Sybase Zope.
Java Database Connectivity - Java Database Connectivity Java Database Connectivity, or JDBC, is an API for the Java programming language that defines how a client may access a database. It provides methods for querying and updating data in a database. JDBC is oriented towards relational databases. The Java 2 Platform, Standard Edition includes the JDBC API together with an ODBC implementation of the API enabling connections to any relational database that supports ODBC. This driver is native code and not Java. Table of contents showTocToggle("show","hide") 1 Types of Drivers 2 Overview of the API 3 Example 4 Additional Resources Types of Drivers There are commercial and free drivers available for most relational database servers. These drivers fall into one of the following types: Type 1 driver Type 2 driver Type 3.
Database management system - Database management system A database management system (DBMS) is a computer program (or more typically, a suite of them) designed to manage a database, a large set of structured data, and run operations on the data requested by numerous users. Typical examples of DBMS use include accounting, human resources and customer support systems. Originally found only in large companies with the computer hardware needed to support large data sets, DBMSs have more recently emerged as a fairly standard part of any company back office. DBMS's contrast with the more general concept of a database applications in that they are designed as the "engine" of a multi-user system. In order to fill this role, DBMSs are typically built around a private multitasking kernel with built-in networking support..
Categorical list of programming languages - Categorical list of programming languages This is a list of programming language grouped by category. See also Alphabetical list of programming languages Chronological list of programming languages Generational list of programming languages Assembly languages directly correspond to a machine language (see below) in order to allow machine code instructions to be written in a form understandable by humans. Assembly languages allow programmers to use symbolic addresses which are later converted to absolute addresses by the assembler. Most assemblers also allow for macros and symbolic constants as well. SSK (Sistema Simvolicheskogo Kodirovaniya, or "System of symbolic coding") for Minsk family of computers. AKI (AvtoKod Ingenera, i.e., "engineer's autocode") for Minsk family of computers was half-step away from assembly languages and doesn't really fit into any other categories in.
List of Unix programs - List of Unix programs Table of contents showTocToggle("show","hide") 1 Common utilities 2 Desktops/Graphical User Interfaces 3 Multimedia 4 Database Servers 5 Database Clients 6 Network Services 7 Security Auditing 8 Network Utilities 9 Filesystems 10 Filesystem Utilities 11 Desktop Publishing 12 Conversion Common utilities admin anacron - Periodic command scheduler anubis - Outgoing mail processor apt - Advanced front-end for dpkg ar - Maintain, modify, and extract from, archives asa at - Single-time command scheduler awk - A pattern scanning and processing language basename - Returns the final component of a path bash - Bourne Again SHell, the most common shell on *nix systems batch bc - Calculator program bzip2 - Block-sorting file compressor c99 cal - Displays a calendar cat - Concatenate files to standard.
Infinite loop - There are a few situations when this is desired behavior. For example, many server programs such as Internet or database servers loop forever waiting for and servicing requests. More often, though, the term is used for those situations when this is not the intended result; that is, when this is a bug. Such errors are made by experienced programmers as well as novices, and their causes can be quite subtle. One common cause, for example, is that the programmer intends to iterate over a collection of items such as a linked list, executing the loop code once for each item, but improperly formed links which create a reference loop in the list, causing the code to continue forever. Unexpected behavior of a terminating condition can also cause this problem. Here's an.
Intranet strategies - access-restricted network used internally in an organization. An intranet uses the same concepts and technologies as the world wide web and internet. This includes web browsers and servers running on the internet protocol suite and using internet protocols such as ftp, TCP/IP, HTML and email. Role of intranets Intranets are generally used for four types of applications: 1) Communication and collaboration send and receive e-mail, faxes, voice mail, and paging discussion rooms and chat rooms audio and video conferencing virtual team meetings and project collaboration 2) Web publishing develop and publish hyperlinked multi-media documents such as: policy manuals company newsletters product catalogs technical drawing training material telephone directories 3) Business operations and management order processing inventory control production setup and control management information systems database access 4) Intranet portal management centrally.
History of operating systems - Typically, each time the manufacture brought out a new machine, there would be a new operating system. This state of affairs continued until the 1960s when IBM developed the System/360 series of machines; although there were enormous performance differences across the range, all the machines ran essentially the same operating system, OS/360. (The problems encountered in the development of the OS/360 are legendary, and are described by Fred Brooks in The Mythical Man-Month--a book that has become a classic of software engineering). OS/360 evolved to become successively MFT, MVT, SVS, MVS, MVS/XA, MVS/ESA, OS/390 and z/OS, that includes the UNIX kernel as well as a huge amount of new functions required by modern mission-critical applications running on the zSeries mainframes. It is worth mentioning, that IBM maintained full compatibility with the.
PHP programming language - parts of PHP is that it is more than just a scripting language. Thanks to its modular design, PHP can also be used to develop GUI applications, and it can be used from the command line just like Perl or Python can be. PHP allows, among other things, easy interaction with a large number of relational database systems (Oracle, DB2, MySQL, PostgreSQL, etc.), while maintaining a simple and straightforward syntax. PHP runs on every major operating systems, including Unix, Linux, Windows, and Mac OS X and can interact with all major web servers. The official PHP website contains extensive online documentation. The Linux, Apache, MySQL, PHP¹ (LAMP) architecture has become very popular in the industry as a way of cheaply deploying reliable, scalable, and secure web applications. PHP is the result.
Minicomputer - single-user systems (microcomputers or personal computers) Table of contents showTocToggle("show","hide") 1 History 2 Impact 3 List of minicomputers History The term evolved in the 1960s to describe the "small" Third Generation computers that became possible with the use of the newly invented integrated circuit technology. They usually took up one or a few cabinets, compared with mainframes that would usually fill a room. The first successful minicomputer was Digital Equipment Corporation's PDP-8, that cost from US$16,000 upwards when launched in 1964. As microcomputers developed in the 1970s and 80s, minicomputers filled the mid-range area between low powered microcomputers and high capacity mainframes. At the time microcomputers were single-user, relatively simple machines running simple program-launcher operating systems like CP/M or MS-DOS, while minis were much more powerful systems that ran full multi-user,.
Lotus Notes - and server-server communication, and SSL 3.0 support on the web. Table of contents showTocToggle("show","hide") 1 Programming 2 History 3 External Links 4 References Programming Lotus Notes databases are built using the Domino Designer client, which is available for Windows and Macintosh. A key feature of Notes is that many replicas of the same database can exist at the same time on different servers and clients, and the same storage architecture is used for both client and server replicas. The basic unit of storage in a database is known as a note. Every note has a Unid and a NoteId. The Unid uniquely identifies the note across all replicas within a cluster of servers, a domain of servers, or even across domains belonging to many organizations that are all hosting replicas of.
Database - Database A database is an information set with a regular structure that allows automated searches and updates. There are a wide variety of databases, from simple tables stored in a single file to very large databases with many millions of records, stored in rooms full of disk drives. Databases resembling modern versions were first developed in the 1960s. A pioneer in the field was Charles Bachman. One way of classifying databases is by the programming model associated with the database. Several models have been in wide use for some time. Historically, the hierarchical model was implemented first, then the network model, then the relational model and flat models reached their zeniths. Database models The flat (or table) model consists of a single, two-dimensional array of data.
Database normalization - Database normalization Database normalization is a series of steps followed to obtain a database design that allows for consistent storage and efficient access of data in a relational database. These steps reduce data redundancy and the chances of data becoming inconsistent. However, many relational DBMSs lack sufficient separation between the logical database design and the physical implementation of the data store, such that queries against a fully normalized database often perform poorly. In this case denormalization is sometimes used to improve performance, at the cost of reduced consistency guarantees. Table of contents showTocToggle("show","hide") 1 Informal Overview 2 Formal Treatment 2.1 Key Constraints and Functional Dependencies 2.2 First Normal Form 2.3 Second Normal Form 2.4 Third Normal Form 2.5 Boyce-Codd Normal Form 2.6 Multi-valued and Join Dependencies.
Database log - Database log In computer science, in the field of databases, a Database Log is a history of actions executed by a database management system. Physically, a log is a file of records stored in stable storage, designed to withstand crashes. Table of contents showTocToggle("show","hide") 1 Anatomy of a General Database Log 2 Types of Database Logs Records 3 Tables Anatomy of a General Database Log A database log record is made up of (FIXME: resource managers, xid not universal) Log Sequence Number: A unique id for a log record. With LSNs, logs can be recovered in constant time. Most logs' LSNs are assigned in monotonically increasing order, which is useful in recovery algorithms, like ARIES. Prev LSN: A link to the last log record. This implies.
Oracle database - Oracle database The Oracle database is a relational database system from Oracle corporation extensively used in product and internet-based applications in different platforms. Oracle database was developed by Larry Ellison, along with friends and former coworkers Bob Miner and Ed Oates, who had started a consultancy called Software Development Laboratories (SDL). They called their finished product Oracle, after the code name of a CIA-funded project they had worked on at a previous employer, Ampex. Table of contents showTocToggle("show","hide") 1 Data storage structure 2 History 3 Version numbering conventions 4 Database-related applications 5 List of Firsts 6.
Netlist - Instance based net based. Netlists can also be Flat Hierarchical Hierarchical Netlists can be Folded Unfolded. Contents and Structure of a Netlist Most netlists either contain or reference descriptions of the parts or devices used. Each time a part is used in a netlist, this is called an "instance". Thus, each instance has a "master", or "definition". These definitions will usually list the connections that can be made to that kind of device, and some basic properties of that device. These connection points are called "ports" or "pins", among several other names. An "instance" could be anything from a vacuum cleaner, microwave oven, or light bulb, to a resistor, capacitor, or integrated circuit chip. Instances have "ports". In the case of a vacuum cleaner, these ports would be the two (or.
Distributed web crawling - is a proposed solution, but does Grub (or others) actually use this algorithm? One solution to this problem is using every computer connected to the Internet to crawl some Internet adresses (URLs) in the background. After downloading the pages, the new pages are compressed and sent back together with a status flag (changed, new, down, redirected) to the powerful central servers. The servers manage a large database and send out new URLs to be tested to all clients. According to the Nutch FAQ the savings in bandwidth by distributed crawling are not significant, since a successful search engine requires more bandwidth to upload query result pages than its crawler needs to download pages. See also: distributed computing.
XBoard - X Window System for chess programs such as GNU Chess and for Internet Chess Servers. It also supports e-mail chess and playing saved games. A port of XBoard to Microsoft Windows exists, called WinBoard. Xboard/Winboard is also a popular GUI used by many free (most in the no-cost and a few-in-the-freedom sense) chess programs and a handful of commercial programs. As of 2003 there are in total at least 200 such chess programs. The communication protocol that is used by chess programs to communicate with Xboard/Winboard can be found at http://www.tim-mann.org/xboard/engine-intf.html Many other chess software both free and commercial support this communication protocol. Examples include Chessmaster, Chess Assistant, Chess Partner, Shane's chess information database, Eboard, Knights and Arena. Another alternate chess communication protocol is the Universal Chess Interface . External references.
Redundant array of independent disks - rewritten. The disk used for the parity block is staggered from one stripe to the next, hence the term "distributed parity blocks". Interestingly, the parity blocks are not read on data reads, since this would be unnecessary overhead and would diminish performance. The parity blocks are read, however, when a read of a data sector results in a CRC error. In this case, the sector in the same relative position within each of the the remaining data blocks in the stripe and within the parity block in the stripe are used to reconstruct the errant sector. The CRC error is thus hidden from the main computer. Likewise, should a disk fail in the array, the parity blocks from the surviving disks are combined mathematically with the data blocks from the surviving.
November 2003 - of Iraq: In the pre-dawn hours RPGss are launched from donkey carts at two Baghdad hotels and the oil ministry building. Reports indicate slight damage and one casualty. [1] Former senior U.S intelligence official and UNSCOM inspector Scott Ritter urges the Parliament of the United Kingdom to investigate the questionable way in which units of British secret intelligence agencies massaged public opinion prior to war with Iraq. [1] [1] The Global Environment Facility Council Approves $224 Million in Grants for 19 Projects to Improve the Global Environment [1] November 20, 2003 The FTAA negotiations in Miami end one day early; a menu approach is adopted to assure the future of the agreement, allowing individual countries to opt out of controversial or unacceptable provisions. Between 10,000 and 25,000 protestors demonstrate outside the.
