* Sailboats database: sailboat data sheets all over the world

Development of this type of database involved not only design issues but the development of complex interfaces whereby researchers could access existing data as well as submit new or revised data.

Berkeley DB ( BDB ) is a software library that provides a high-performance embedded database for key / value data.

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

* MySQL database system – Prior to v5. 1, MySQL included a BDB data storage backend.

The database does not reveal the actual passwords or keylogged data.

The company planned to monetize their work by creating a value-added database of genomic data to which users could subscribe for a fee.

In computing, a data warehouse ( DW or DWH ) is a database used for reporting and data analysis.

The staging layer or staging database stores raw data extracted from each of the disparate source data systems.

The integration layer integrates the disparate data sets by transforming the data from the staging layer often storing this transformed data in an operational data store ( ODS ) database.

The integrated data are then moved to yet another database, often called the data warehouse database, where the data is arranged into hierarchal groups often called dimensions and into facts and aggregate facts.

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.

Functions such as email exchange, web access and database access are built on the client / server model.

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.

Operational systems are optimized for preservation of data integrity and speed of recording of business transactions through use of database normalization and an entity-relationship model.

The Domain Name System is maintained by a distributed database system, which uses the client-server model.

The dominant database language is the standard SQL for the Relational model, which has influenced database languages also for other data models.

For this reason a different model, the entity-relationship model which emerged shortly later ( 1976 ), gained popularity for database design.

A temporal database is a database with built-in time aspects, for example a temporal data model and a temporal version of Structured Query Language ( SQL ).

The database needs to be based on a data model that is sufficiently rich to describe in the database all the needed respective application's aspects.

It strongly impacts the convenience and cost of maintaining an application and its database, and has been the major motivation for the emergence and success of the Relational model, as well as the convergence to a common database architecture.

The related Inverted file data model utilizes inverted files of primary database files to efficiently directly access needed records in these files.

Others have attacked the problem from the database end, by defining an object-oriented data model for the database, and defining a database programming language that allows full programming capabilities as well as traditional query facilities.

Despite not adhering to the relational model as described by Codd, it has become the most widely used database language.

Clearly separating the three levels was a major feature of the relational database model implementations that dominate 21st century databases.

The above three-level database architecture also relates to and being motivated by the concept of data independence which has been described for long time as a desired database property and was one of the major initial driving forces of the Relational model.

First, the conceptual level is designed, which defines the over-all picture / view of the database, and reflects all the real-world elements ( entities ) the database intends to model, as well as the relationships among them.

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 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.