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The index command creates a new index file that allows fast look-up of data in a (sorted) SAM or BAM. Like an index on a database, the generated *.sam.sai or *.bam.bai file allows programs that can read it to more efficiently work with the data in the associated files. tview
A Data Mapper is a Data Access Layer that performs bidirectional transfer of data between a persistent data store (often a relational database) and an in-memory data representation (the domain layer). The goal of the pattern is to keep the in-memory representation and the persistent data store independent of each other and the data mapper itself.
The W3C introduced R2RML as a standard for mapping data in a relational database to data expressed in terms of the Resource Description Framework (RDF). In the future, tools based on semantic web languages such as RDF, the Web Ontology Language (OWL) and standardized metadata registry will make data mapping a more automatic process.
CakePHP, ORM and framework, open source (scalars, arrays, objects); based on database introspection, no class extending; CodeIgniter, framework that includes an ActiveRecord implementation; Yii, ORM and framework, released under the BSD license. Based on the ActiveRecord pattern; FuelPHP, ORM and framework for PHP, released under the MIT ...
Object–relational mapping (ORM, O/RM, and O/R mapping tool) in computer science is a programming technique for converting data between a relational database and the memory (usually the heap) of an object-oriented programming language. This creates, in effect, a virtual object database that can be used from within the programming language.
Database virtualization may use a single ODBC-based DSN to provide a connection to a similar virtual database layer. [clarification needed] Alluxio, an open-source virtual distributed file system (VDFS), started at the University of California, Berkeley's AMPLab. The system abstracts data from various file systems and object stores. [citation ...
i2 Analyst's Notebook is a software product from i2 Group for data analysis.Based on ELP (entity-link-property) methodology, it reveals relationships between data entities to discover patterns and provide insight into data.
The pattern language continues to be relevant as of today, for instance in cloud application development and integration, and in the internet of things.