A DBMS also needs to provide effective run-time execution to properly support ( e. g., in terms of performance, availability, and security ) as many database end-users as needed.

Accordingly its supported data collection needs to meet respective usability requirements ( broadly defined by the requirements below ) to qualify as a database.

The major purpose of a database is to provide the information system ( in its broadest sense ) that utilizes it with the information the system needs according to its own requirements.

A database data model needs support by a sufficiently rich data manipulation language to allow database manipulations, and for information to be generated from the data.

A database needs built-in security means to protect its content ( and users ) from dangers of unauthorized users ( either humans or programs ).

All the three levels are maintained and updated according to changing needs by database administrators who often also participate in the database design.

Database design is done before building it to meet needs of end-users within a given application / information-system that the database is intended to support.

On top of it the external level, various views of the database, are designed according to ( possibly completely different ) needs of specific end-user types.

Different types may significantly differ in their properties, and the optimal mix of storage types is determined by the types and quantities of operations that each storage type needs to perform, as well as considerations like physical space and energy consumption and dissipation ( which may become critical for a large database ).

In order to access a database object a transaction first needs to acquire a lock for this object.

Different types may significantly differ in their properties, and the optimal mix of storage types is determined by the types and quantities of operations that each storage type needs to perform, as well as considerations like physical space and energy consumption and dissipation ( which may become critical for a large database ).

In order to access a database object a transaction first needs to acquire a lock for this object.

As there can be many different users, there are many different database needs.

When it is considered that some e-learning courses need to include video, mathematical equations using MathML, chemistry equations using CML and other complex structures the issues become very complex, especially if the systems needs to understand and validate each structure and then place it correctly in a database.

Both firms struggled to take Smalltalk mainstream due to Smalltalk's substantial memory needs, limited run-time performance, and initial lack of supported connectivity to SQL-based relational database servers.

These technologies ' implementation can and does depend on the needs of the business and the sensitivity / confidentiality of the data to be stored in the database, and hence the price the business is willing to spend on ensuring data security, consistency and integrity.

Compared to traditional techniques of exchange between an object-oriented language and a relational database, ORM often reduces the amount of code that needs to be written.

Entity relationship models were being used in the first stage of information system design during the requirements analysis to describe information needs or the type of information that is to be stored in a database.

The website pothpirates. com is the database for all Poth Pirate Football needs.

This poses a serious problem and needless to say, any database system with multi-user access needs some sort of system to deal with these scenarios.

The division also defines NIGMS ’ needs for database development and applications as well as for a broad spectrum of biomedical technologies, techniques and methodologies.

* Metamath-a language for developing strictly formalized mathematical definitions and proofs accompanied by a proof checker for this language and a growing database of thousands of proved theorems ; while the Metamath language is not accompanied with an automated theorem prover, it can be regarded as important because the formal language behind it allows development of such a software ; as of March, 2012, there is no " widely " known such software, so it is not a subject of " automated theorem proving " ( it can become such a subject ), but it is a proof assistant.

The objects for a single domain are stored in a single database ( which can be replicated ).

A program accessing the database is free to decide how the data is to be stored in a record.

The statistical information in the form of conditional distributions ( histograms ) can be derived interactively from the estimated mixture model without any further access to the original database.

Style mixing can be realized by analysis of a database containing multiple musical examples in different styles.

Spatial information can be stored in a database, from which it can be extracted on demand.

Data federation methods or data virtualization methods may be used to access the distributed integrated source data systems to consolidate and aggregate data directly into the data warehouse database tables.

The term database may be narrowed to specify particular aspects of organized collection of data and may refer to the logical database, to the physical database as data content in computer data storage or to many other database sub-definitions.

For decades it has been unlikely that a complex information system can be built effectively without a proper database supported by a DBMS.

:: The definition of a distributed database is broad, and may be utilized in different meanings.

The term " embedded database " can be confusing because only a small subset of embedded database products is used in real-time embedded systems such as telecommunications switches and consumer electronics devices.

However, also available general-purpose DBMSs can often be used for such purpose, if they provide basic user-interfaces for straightforward database applications ( limited query and data display ; no real programming needed ), while still enjoying the database qualities and protections that these DBMSs can provide.

:: The World Wide Web can be thought of as a database, albeit one spread across millions of independent computing systems.

:: In a Hypertext database, any word or a piece of text representing an object, e. g., another piece of text, an article, a picture, or a film, can be linked to that object.

If a DBMS system responses users ' request in a given time period, it can be regarded as a real time database.

Certain general functional requirements need to be met in conjunction with a database.

They describe what is needed to be defined in a database for any specific application.

* HyperGraphDB-An open-source OO graph database based on generalized hypergraphs.

XQuery is an XML based database language ( also named XQL ).

The most common database design methods are based on the entity relationship model ( ERM, or ER model ).

It is based on a corpus linguistics analysis of Oxford's 200 million word database of contemporary American English.

* Cambridge University based myPersonality project offering to researchers access to robust database of millions of detailed psycho-demographic profiles

The relational model for database management is a database model based on first-order predicate logic, first formulated and proposed in 1969 by Edgar F. Codd.

If we wanted to retrieve all of the Orders for Customer 1234567890, we could query the database to return every row in the Order table with < u > Customer ID </ u > 1234567890 and join the Order table to the Order Line table based on < u > Order No </ u >.

The Metropolitan Police senior management team, who oversee the service, is based at New Scotland Yard, along with the Met's crime database.

It was based on two programs: the first program, "< tt > spider </ tt >" maintains a queue in a relational database, and the second program "< tt > mite </ tt >", is a modified < tt > www </ tt > ASCII browser that downloads the pages from the Web.

Variable content is displayed dynamically on the fly based on certain criteria, usually by retrieving content stored in a database.

Since Intranets are user-specific ( requiring database / network authentication prior to access ), you know exactly who you are interfacing with and can personalize your Intranet based on role ( job title, department ) or individual (" Congratulations Jane, on your 3rd year with our company!

* Period Dramas. com – a costume-drama movie database based around a historical timeline.

Not all data are transaction based and logical, or inexact rules may also be present within a database.

An index of the units in the speech database is then created based on the segmentation and acoustic parameters like the fundamental frequency ( pitch ), duration, position in the syllable, and neighboring phones.

For distributions based on. deb and. rpm files as well as Slackware Linux, there is CheckInstall, and for recipe-based systems such as Gentoo Linux and hybrid systems such as Arch Linux, it is possible to write a recipe first, which then ensures that the package fits into the local package database.

In addition to the products based on the version 11. 7 engine the IBM Informix family also includes a number of legacy database products which are still supported in market.

It was originally based on the now-proprietary CDDB ( compact disc database ).

DNS is based on a distributed database that takes some time to update globally.

Towards the end of the 1960s Edgar F. Codd worked out his theories of data arrangement, and proposed the relational model for database management based on first-order predicate logic.

* Relational model: is a database model based on first-order predicate logic.

One common form of surveillance is to create maps of social networks based on data from social networking sites such as Facebook, MySpace, Twitter as well as from traffic analysis information from phone call records such as those in the NSA call database, and others.

One common form of surveillance is to create maps of social networks based on data from social networking sites as well as from traffic analysis information from phone call records such as those in the NSA call database, and internet traffic data gathered under CALEA.