Abbreviations
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DDL
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Data Definition Language - defines the database schema and how the data should reside in it. It defines tables with statements like CREATE TABLE and ALTER TABLE as well as attributes, domains and contraints.
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DML
| Data Manipulation Language - retrieve and update data.
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DCL
| Data Control Language - rights, permissions and other controls such as GRANT.
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ODMG |
Object Data Management Group.
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OML |
Object Manipulation Language - extends programming language (such as C++, Java etc.) to retrieve objects from the database and modify them.
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ODL |
Object Definition Language - describes under the ODMG specification the structure and content of an object database. It is used to describe the classes and relationships. A relationship is defined as a pair of traversal paths.
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OOPL |
Object Oriented Programming Language.
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OQL |
Object Query Language. The syntax is similar to SQL for example SELECT ... FROM ... WHERE can return a collection of objects.
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OLAP |
On-Line Analytical Processing. OLAP systems give multidimensional views and analysis. OLAP queries summarise data giving results such as total sales per month.
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OID |
Object Identifier.
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(c) Compiled by B V Wood.
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