Search results
Results From The WOW.Com Content Network
In software, a data access object (DAO) is a pattern that provides an abstract interface to some type of database or other persistence mechanism. By mapping application calls to the persistence layer, the DAO provides data operations without exposing database details.
The database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS). The term " schema " refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases ).
Dia loads and saves diagrams in a custom XML format which is, by default, gzipped to save space. It can print large diagrams spanning multiple pages [ 4 ] and can also be scripted using the Python programming language .
The database design documented in these schemas is converted through a Data Definition Language, which can then be used to generate a database. A fully attributed data model contains detailed attributes (descriptions) for every entity within it. The term "database design" can describe many different parts of the design of an overall database ...
Multi-layer 2D, 3D and statistical graphs for science and engineering. Built-in digitizing tool. Auto-recalculation and reporting. Programmable, with access to NAG Numerical Library. ParaView: GUI, Python scripting: GPL: Yes 2002: June 19, 2018 / 5.5.2: Linux/Unix, Mac OS X, Windows: Parallel scientific and Computational Fluid Dynamics ...
If the data access layer supports multiple database types, the application becomes able to use whatever databases the DAL can talk to. In either circumstance, having a data access layer provides a centralized location for all calls into the database, and thus makes it easier to port the application to other database systems (assuming that 100% ...
A diagram is a partial graphic representation of a system's model. The set of diagrams need not completely cover the model and deleting a diagram does not change the model. The model may also contain documentation that drives the model elements and diagrams (such as written use cases). UML diagrams represent two different views of a system ...
Yes Built-in support for LaTeX math; syntax highlighting for code blocks. Gollum: Yes Yes Yes Yes Yes Yes Yes: Built-in support for MathML and LaTeX math; syntax highlighting for code blocks; citations; annotations IBM Connections: Yes Yes Yes Yes Yes Yes Yes Jive: Yes Yes Yes Yes Yes No JotSpot: Yes Yes Yes MediaWiki: Yes Yes [51] Yes Yes Yes Yes