What is a XML Database?

September 10th, 2009 by DatabaseGuides

XML, which is short for Extensible Markup Language, is a kind of software that helps systems which share information across different sources, such as through the internet. Not only that, XML also helps with encoding as well as serializing data.

XML database, on the other hand, refers to a kind of software that allows or still retains the first version of any information and stores it even though there is already a new version of the information or even though it is already modified. This software allows the data to be stored in the format of XML. Once it is stored, a user can then develop it further and change its format for output.

Two Types of XML Databases

XML-enabled and native XML are the two types of classes for XML database. XML-enabled maps out the XML in a database which is usually used, including the acceptance of XML input and the output generated, which is also in the XML format. The database in XML-enabled is the one that converts the data by itself.

What is a XML Database? XML

Native XML, on the other hand, refers to the dependency of databases on XML. It also uses documents in XML format as its storage unit. Native XML database doesn’t really mean that they store data in text form.

XML-enabled database may be considered inexpensive when it comes to the conversion of data. However, not all native XML databases function as a standalone database. It is sometimes defined as a model for XML documents that stores data, which are in the same format. A native XML database should also have a unit of storage in XML format or document. There is no particular storage model specified for the use of native XML database. Some can still use relational, object-oriented, and even hierarchical databases.

Functions of XML Database

Some XML databases have a collection, which is the term used to refer to a model of documents that are in a group. One of the functions of a database is to be able to set up and manage collections all at the same time. Hierarchy in collections can also occur in some XML database, just like in operating systems. XML databases use a form of syntax for querying, such as XPath which is used for querying collections. The XPath is the one that allows a user to know about the node that is the same as the criteria that he or she is looking at.

XML HTML

Some XML databases also support XSLT, which is a method that transforms documents received from the database. The purpose of an XSLT is to declare a set of filters that are from XPath which will then enable it to transform documents into different formats such as Plain text, PDF, HTML, XML and so on.

Advantages and Disadvantages of XML Database

Some of the advantages of an XML database are that it is self-describing as well as portable. It can also represent a data into a tree or in a graphical representation. There are also disadvantages when using this type of database. XML database is considered to be slow due to its parsing.

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What is an Online Database?

September 10th, 2009 by DatabaseGuides

Online database is a compilation of information such as pertinent articles, graphics, books and multimedia that can readily be searched when looking for information. Most of these online databases are used in libraries and other institutions. This is significant to those people who are doing researches and other educational activities.

All about Online Database

Online database is the database you can access via the World Wide Web. It is definitely different from the typical database you would often access from your personal computer. Online database is used for a system designed to manage and monitor data on databases. Online database is also used in retrieving information of essential topics like politics, health and the like. Online database is also used to extract important files for researches and other supplemental information. Lastly, online database is used to acquire programs from other different databases such as search engines.

Online database can be categorized into general or subject format. If a database is under the subject format, the database can be presented in an abstract or full text form. The abstract form is an illustration of the contents of books, articles, researches and other works. The abstract form presents the content of these literary works without bearing its value. On the other hand, if the database is presented in the full text form, the contents will be retrieved from an electronic source. Reading materials are set in the database, and users will just have to gain access to the pertinent information needed where they can procure the complete information of books, magazines and other reading materials.

Online Database

When you’re using an online database, you need to understand the meaning and purpose of the HTML and PDF. The HTML or the Hyper Text Markup Language is a computer language used to link document links from the World Wide Web. On the other hand, PDF is a format that allows users to read and print texts from the computer.

The Difference between the Internet and the Online Database

The World Wide Web is now one of the most visited places today. Many users would often log online whenever they need to look for any information for school or work. Although the Internet provides users with access to numerous information, most information may be incomplete or one-sided, so this is preferably used when you want to visit a particular website. You can also use the Internet if you want to access digital collections, news, government information and other web pages.

The database, on the other hand, provides important information that is evaluated by publishers and is licensed for distribution. The online database is useful for those who are looking for academic journals and books that are indexed or not available on the web. The online database is also for those people who are in a hurry because it already contains pertinent and credible information on a single access point, so you need not waste more time looking for the information that you want. Users also don’t need to go to different websites just to look for credible information. Lastly, online database is used when you’re looking for researches, biographies and statistics.

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What is a Microsoft Access Database?

June 8th, 2009 by Shenron

Microsoft Office Access, also formerly known as Microsoft Access, is the newest addition to the software management tools provided by the Microsoft System last 2007. Microsoft Office Access is a combination of the Microsoft database engine system with software development tools as well as graphical user interface. Microsoft Office Access presents many productive tools to help software developers and architects build new and simple applications.

History of Microsoft Office Access

The first Microsoft Access was developed in November 1992, while the second version (version 1.1) was released in May 1993 with the promise of compatibility with other Microsoft programs. The third version of Microsoft Access, the version 2.0, was an improvement over the first two, but it requires a bigger memory space. For version 2.0, the minimum operating system should be at least 6 MB RAM with a backup memory of 8 MB, so 14 MB is the recommended space for the Microsoft Access version 2.0.

While this software had taken Microsoft into new heights, Microsoft Access at that time had experienced a major downfall. Since the operating systems at that time were not that reliable, incidences of data corruption were noted, so Microsoft Office Access underwent drastic changes to correct the mistake. With the phasing out of the Windows 95 and 98, the Microsoft Office Access has been enhanced.

The Features and Uses of Microsoft Office Access

The best thing about using the Microsoft Office Access is its reliability with other database programs. It has been designed in conformity with the SQL (structured query language). SQL are queries that can be viewed graphically in Access. These SQL statements can be developed in the Microsoft Office Access and can be used in Macros and VBA modules. The Macros and VBA modules are primarily used for developing programming forms and logics. Furthermore, Microsoft Office Access has compatibility with ADP files. ADP files include objects that emphasize forms, reports, procedures and tables.

The Microsoft Office Access is highly recommended to those who are in the professional applications development. Software developers can use Microsoft Office Access in creating prototypes for people who are always on-the-go like businessmen and salesmen. Microsoft Access also allows the use of the database on an area network by connecting the program to the Microsoft Terminal Services, which is the Internet access for Microsoft programs.

Microsoft Office Access is also used for architectural purposes. This program has a Microsoft SQL server that provides access to create all objects in the underlying server, and there are still plans to upgrade the Microsoft Office Access so as to make it more compatible with other significant servers.

Microsoft Office Access is also used for query development. All queries, tables and modules can be developed using the access program. Access uses a Query Design Grid, which is a graphical interface that allows users to create queries without asking the consent of the SQL programming. Moreover, Access allows users to manipulate SQL without any hassles.

The use of Microsoft Office Access will definitely create a more dependable environment for businesses.

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