Microsoft SQL Server - Microsoft SQL Server Microsoft SQL Server is a database management system produced by Microsoft. It supports a dialect of SQL, the most common database language. It is commonly used by governments and businesses for small databases, and competes with other SQL databases such as MySQL and PostgreSQL for this market segment. The codebase for Microsoft SQL Server originated in Sybase SQL Server, and was Microsoft's entry to the enterprise-level database market, competing against Oracle, IBM, and Sybase. The first version was SQL Server for OS/2 (about 1989) which was essentially the same as Sybase SQL Server 4.0 on Unix, VMS, etc. About the time Windows NT was coming out, Sybase and Microsoft parted ways and pursued their own design and marketing schemes. Later, Sybase changed the.
SQL Server - SQL Server There are several meanings to SQL Server: Mostly it refers to the Microsoft SQL Server, which was actually derived from Sybase SQL Server, but could also refer to any database management system supporting SQL..
Sybase SQL Server - Sybase SQL Server "Sybase SQL Server" was the name of Sybase Corporation's relational database product. It was originally created for UNIX platforms in 1987. In 1988, SQL Server for OS/2 was codeveloped for the PC by Sybase, Microsoft, and Ashton-Tate. Ashton-Tate divested its interest and Microsoft became the lead partner after porting SQL Server to MS Windows NT. Microsoft and Sybase sold and supported the product through version 4.21. In 1993 the codevelopment licensing agreement between Microsoft and Sybase ended and the companies parted ways. In 1995, Sybase released SQL Server 11.0. Thereafter, it decided to better differentiate its product from Microsoft SQL Server by renaming it to Adaptive Server Enterprise in versions 11.5 and beyond. Further History... Sybase was founded by Bob Epstein, the architect of.
SQL slammer worm - SQL slammer worm The SQL slammer worm is a computer virus (technically, a "worm program") that caused a denial of service on some Internet hosts and dramatically slowed down general Internet traffic, starting at 05:30 UTC on January 25, 2003. It spread rapidly, infecting most of its 75,000 victims within 10 minutes. Although titled "SQL slammer worm", the program did not make use of SQL. It exploited two buffer overflow bugs in Microsoft's flagship SQL Server database product. Other names include W32.SQLExp.Worm, DDOS.SQLP1434.A, the Sapphire Worm, SQL_HEL, and W32/SQLSlammer. Table of contents showTocToggle("show","hide") 1 Impact 2 Technical Details 3 See Also 4.
PL SQL - PL SQL PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's proprietary extension of the SQL database language. Since SQL is a declarative language, and unlike some functional programming languages the standard does not require implementations to convert tail calls to jumps or readily provide "first row" and "rest of table" accessors, SQL cannot easily perform some constructs such as loops. PL/SQL, however, is a Turing-complete procedural language which fills in these gaps, allowing Oracle database developers to interface with the underlying relational database in an imperative manner. SQL queries call PL/SQL functions through constructions such as triggers. PL/SQL is analogous to the embedded procedural languages for other relational databases. Sybase and its derivative Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which tries to emulate PL/SQL to.
Microsoft Access - Microsoft Access Microsoft Access is a database management system from Microsoft, packaged with Office which combines the Jet relational database engine with a graphical interface intended to make it possible for relatively unskilled programmers and non-programmer "power users" to build sophisticated "front-ends" to complex databases. One of the major benefits of Access from a programmer perspective is its relative compatibility with SQL—queries may be viewed and edited as SQL statements. Otherwise, it uses VBA for programming forms and logic. The report writer in Access is similar to the other popular database report writer - Crystal Reports but the two products are vastly different in their approach. MSDE (Microsoft SQL Server Desktop Engine) 2000, a cut-down version of MS SQL Server 2000, is included with the developer.
List of database servers - servers Adabas DB2 Firebird Informix InterBase Microsoft_SQL_Server MySQL Oracle PostgreSQL SapDB SQLite Sybase Zope.
January 2003 - Oregon to pass an temporary three-year income tax failed with 54% of the votes voting against and 44% voting for. This forced the first layoffs in the Oregon State Police since its creation in 1934, and other actions including cutbacks in many of the local school districts. January 26, 2003 American Football Super Bowl XXXVII: The Tampa Bay Buccaneers defeated the Oakland Raiders, 48-21. January 25, 2003 The Internet was attacked by very high traffic caused by a self-replicating software worm program called "SQL Slammer". This attacked Microsoft SQL servers, causing them to spray the Internet with more copies of the worm program. This was made possible by a security vulnerability in Microsoft SQL Server. The worm attack had the side effect of causing a distributed denial of service attack on.
Informix - company which developed it. The Informix DBMS developed from the pioneering Ingres system that also led to Sybase and SQL Server. For a time in the 1990s Informix was the second most popular database system, after Oracle. Success did not last very long, however, and by 2000 a series of management blunders had all but destroyed the company. In 2001 IBM purchased Informix in order to gain access to its existing market share and customer base. Long-term plans to merge Informix technology with DB2 have emerged, since the Informix Arrowhead project has now become the DB2 Arrowhead. IBM has also undertaken to support older versions. Table of contents showTocToggle("show","hide") 1 Early history 2 Innovative Software acquisition 3 Version 7 4 Illustra acquisition 5 Corporate misgovernance 6 Misgovernance indictments 7 Product summary.
Ingres - The code, like that from other projects at Berkeley, was available at minimal cost under a version of the BSD license. By the mid-1980s Ingres had spawned a number of commercial database applications, including Sybase, SQL Server, NonStop SQL, Informix and a number of others. A follow-on project started in the mid-1980s as Postgres, leading to the development of PostgreSQL, Illustra, and later versions of Informix. By any measure, Ingres is one of the most influential modern computer research projects. History Ingres In 1973 when the System R project was getting started at IBM, the research team released a series of papers describing the system they were building. Two scientists at Berkeley, Michael Stonebraker and Eugene Wong, became interested in concept after reading the papers, and decided to start a relational.
FreeTDS - ODBC library. It allows many open source applications such as Perl and PHP (or your own C or C++ program) to connect to Sybase or Microsoft SQL Server. FreeTDS is a source code library, though, not a binary one. It has to be linked to a program. For it to be useful to you in any way, you have to be prepared to break out your build tools. External Links http://www.freetds.org/ http://www.freetds.org/userguide/.
Database - behave differently, so long as they have the same interface (polymorphism). This doesn't fit well with a relational database where all rows in a table have exactly the same columns and the columns are directly accessible. A variety of ways have been tried for storing objects in a database, but there is little consensus on how this should be done. Some ways of implementing object databases appear to undo the benefits of relational model by introducing pointers and making ad-hoc queries more difficult. As a result, object databases tend to be used for specialized applications and general-purpose object databases have not been very popular commercially. Instead, objects are often stored in relational databases using complicated mapping software. At the same time, relational database software vendors have added features to allow objects.
Database management system - large databases. Instead of records being stored in some sort of linked list of free-form records as in Codasyl, his concept was to use a "table" of fixed-length records. Such a system would be very ineffecient when storing "sparse" databases where some of the data for any one record could be left empty. The relational model solved this by splitting the data into a series of tables, with optional elements being moved out of the main table where they would take up room only if needed. For instance, a common use of a database system is to track information about users, their name, login information, various addresses and phone numbers. In the navigational approach all of this data would be placed in a single record, and items that were not used.
ADO - ADO Microsoft ADO (ActiveX Data Objects) is a Component object model object for accessing data sources. It provides a layer between programming languages and databases, which allows a developer to write programs which access data, without knowing how the database is implemented. No knowledge of SQL is required to access a database when using ADO, although one can use ADO to execute arbitrary SQL commands. The disadvantage of this is that this introduces a dependency upon the database. It is positioned as a successor to Microsoft's earlier object layers for accessing data sources, including RDO (Remote Data Objects) and DAO (Data Access Objects). ADO consists of several top-level objects: Connection (represents the connection to the database) Recordset (represents a set of database records) Command (represents a SQL.
Algorithms for Recovery and Isolation Exploiting Semantics - designed to work with a no-force, steal database approach. ARIES is a popular algorithm used by IBM DB2, Microsoft SQL Server and many other database systems. Three main principles lie behind ARIES: Write ahead logging: Any change to an object is first recorded in the log, and the log must be written to stable storage before changes to the object is written to disk. Repeating history during Redo: On restart after a crash, ARIES retraces the actions of a database before the crash and brings the system back to the exact state that it was in before the crash. Then it undoes the transactions still active at crash time. Logging changes during Undo: Changes made to the database while undoing transactions are logged to ensure such an action isn't repeated in.
Tabular Data Stream - the order in which they may be sent. Protocols describe the "bits on the wire", how data flow. A protocol is not an API, although the two are related. The server recognizes and speaks a protocol; anything that can send it the correct combination of bytes in the right order can communicate with it. But programmers aren't generally in the business of sending bytes; that's the job of a library. Over the years, there have been a few libraries -- each with its own API -- that do the work of moving SQL through a TDS pipe. ODBC, db-lib, ct-lib, and JDBC have very different APIs, but they're all one to the server, because on the wire they speak TDS. The TDS protocol was designed and developed by Sybase Inc. for.
Computer worm - intelligence Laboratory. It was released on November 2, 1988, and quickly infected a great many of the computers on the Internet. It propagated through a number of bugs in BSD Unix and its derivatives. Morris himself was convicted under the US Computer Crime and Abuse Act, received 3 years probation, community service and a fine in excess of $10,000. More sophisticated worms such as the Klez worm are multi-headed and may carry other executables as a payload. This fact has sparked speculation that such worms could employ genetic algorithms. Famous Worms On March 26, 1999 the Melissa worm was released, causing a huge load on Microsoft Exchange and Outlook-based systems. In the summer of 2001, the Code Red worm attacking Microsoft Internet Information Server was released. It was just another computer.
Code Red worm - July 19, 2001 a computer worm affecting Microsoft's Internet Information Server (IIS) web server was unleashed on the Internet. It soon became known as Code Red. This worm exploited a vulnerability in the indexing software distributed with IIS and did several things: It defaced the affected web site to display: "HELLO! Welcome to http://www.worm.com! Hacked By Chinese" (The last phrase became a stock phrase) It tried to spread itself by looking for more IIS servers on the Internet. It waited 20-27 days after it was installed to launch denial of service attacks to the several fixed IP addresses. The IP address of the White House web server was among those. See Also Melissa worm Morris worm SQL slammer worm Klez Sircam Blaster worm Sobig worm.
Sobig worm - was a computer worm that infected millions of Internet-connected, Microsoft Windows computers in August 2003. Even if there were some indications that tests of the worm were being carried out as early as August 2002, Sobig.a was first found in the wild in January 2003. Sobig.b was released on May 2003. It was first called Palyh, but was later renamed to Sobig.b after anti-virus experts discovered it was a new generation of Sobig. Sobig.c was released May 31 and fixed the timing bug in Sobig.b. Sobig.d came a couple of weeks later followed by Sobig.e in June 25. On August 19, Sobig.f became known and set the record in sheer volume of e-mails. The worm was most widespread in its "f" variant "Sobig.f", which followed earlier and less destructive "a" through.
Strategic enterprise management - of the earnings reports of synthesis -Analysis and programming of the ratios of structures, and automatic release of successive accounting processes by taking into account updated standards: capacity of self-financing, breakeven points, synthetic balance, detailed balance, funds statement, cycles of exploitation, synthetic finance, table of investment, table of depreciations, activities of trade, activities of production, external loads, taxes and taxes, loads of the staff and the others and detailed finance. Index card automated of transfer of the periodic results in purposes of realization of the potential, in purposes of operational follow-up and in tools of general accounting. 4-The tools of global strategic regulation of costs and performances in real time// The result of the exploitation is determined by the difference between sales and the loads which are brought back to them..
