A data warehouse is a place where data is stored for archival, analysis, and security purposes. Usually a data warehouse is either a single computer or many computers (servers) tied together to create one giant computer system.
Data consists of raw data or formatted data. It can be on various types of topics including the organization's sales, salaries, operational data, summaries of data including reports, copies of data, human resource data, inventory data, external data to provide simulati
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Most people are familiar with terms like data warehousing, data mining, and data cleansing, but fewer people are familiar with data mart. A data mart is a subsection of a data warehouse that deals with specific information. Much like the chapters of a book, a data mart contains related information that deals with the same subject, but may also be divided into its own categories. In this article, we will be exploring data marts and data mart software that allow you to extract information from a d
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A stored procedure is, in simplest terms, a command. Stored procedures are used to perform a wide variety of tasks on a computer and can be pre-programmed with any number of parameters or variables. While stored procedures are always used to interact with a database, they can be used for many different applications, such as use in employee databases, restaurant or retail records, or even in regular websites.
How a Stored Procedure Works
A stored procedure can be created by using any standa
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A DSN (Data Source Name) is an identifier that is used to store information relating to a database connection. DSNs can store a database’s name and server location, the directory that is used to store offline content, the database driver, and the user’s ID and password. DSNs can be used for a wide variety of database applications, such as SQL databases and FTP connections.
How DSN Works
A DSN is simply a file that contains all information regarding a particular database. DSNs
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hsqldb
HSQLDB is the leading SQL relational database engine written in Java. HSQLDB has a JDBC driver and supports a rich subset of ANSI-92 SQL (BNF tree format) plus SQL 99 and 2003 enhancements. HSQLDB offers a small (less than 100k in one version), fast database engine which offers both in-memory and disk-based tables. Embedded and server modes are available. Additionally, it includes tools such as a minimal web server, in-memory query and management tools (can be run as applets) and a numbe
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Database replication is the creation and maintenance of multiple copies of the same database. In most implementations of database replication, one database server maintains the master copy of the database and additional database servers maintain slave copies of the database. Database writes are sent to the master database server and are then replicated by the slave database servers. Database reads are divided among all of the database servers, which results in a large performance advantage due t
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A database trigger is a procedural code that automatically changes information in one or more databases in response to a change on another database or table. For example, when an employer creates a slot in a list of employees for a new employee, the database trigger in that list should automatically add the new employee to lists for vacations, sick days, salaries, and/or other information. Database triggers prevent computer administrators from having to manually add new information to multiple t
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A multimedia database is a database that hosts one or more primary media file types such as .txt (documents), .jpg (images), .swf (videos), .mp3 (audio), etc. And loosely fall into three main categories:
Static media (time-independent, i.e. images and handwriting)
Dynamic media (time-dependent, i.e. video and sound bytes)
Dimensional media (i.e. 3D games or computer-aided drafting programs- CAD)
All primary media files are stored in binary strings of zeros and ones, and ar
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Data mining is usually defined as searching, analyzing and sifting through large amounts of data to find relationships, patterns, or any significant statistical correlations. With the advent of computers, large databases and the internet, it is easier than ever to collect millions, billions and even trillions of pieces of data that can then be systematically analyzed to help look for relationships and to seek solutions to difficult problems. Besides governmental uses, many marketers use data min
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JDBC (Java Data Base Connectivity) is an API (Application Programming Interface) for connecting to databases from the Java environment.
JDBC is an alternative to ODBC. JDBC's Java interface is more comfortable to Java programmers than ODBC's C language interface.
JDBC is included with both J2SE and J2EE.
If no JDBC driver is available for your needs, a JDBC-ODBC bridge may be used to connect to an ODBC driver via the JDBC API. Java 2 includes a JDBC-ODBC bridge for Solaris and Micro
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