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wdb:manuals:wdb [2012-04-04 19:10:17] michaeloa |
wdb:manuals:wdb [2022-05-31 09:29:32] (current) |
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| At its core, the WDB system consists of a database management server (built on the PostgreSQL DBMS), a number of utilities for maintenance and data loading, and a function interface for data extraction. We refer to the data loading utilities as loading programs and the data extraction interface as the WDB Call Interface (WCI). The figure below illustrates the relation of the different components of WDB. | At its core, the WDB system consists of a database management server (built on the PostgreSQL DBMS), a number of utilities for maintenance and data loading, and a function interface for data extraction. We refer to the data loading utilities as loading programs and the data extraction interface as the WDB Call Interface (WCI). The figure below illustrates the relation of the different components of WDB. | ||
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| We refer to the WDB data model together with the WDB Call Interface as the WDB core. This comprises the data storage components of the database along with the interface to read and write data. The WDB Call Interface (WCI) is essentially a database module that provides the application developer or user with a function-based interface that can be used to extract data from WDB. This function interface is accessible through SQL, which means that any programming language capable of querying a PostgreSQL database can access data through WCI; at least in theory. Users of a WDB database never access the tables or views of the database directly; all access goes through WCI functionality. | We refer to the WDB data model together with the WDB Call Interface as the WDB core. This comprises the data storage components of the database along with the interface to read and write data. The WDB Call Interface (WCI) is essentially a database module that provides the application developer or user with a function-based interface that can be used to extract data from WDB. This function interface is accessible through SQL, which means that any programming language capable of querying a PostgreSQL database can access data through WCI; at least in theory. Users of a WDB database never access the tables or views of the database directly; all access goes through WCI functionality. | ||