Semantic database modeling: survey, applications, and research issues
ACM Computing Surveys (CSUR)
Understanding the new SQL: a complete guide
Understanding the new SQL: a complete guide
The Unified Modeling Language reference manual
The Unified Modeling Language reference manual
Object Databases: An ODMG Approach
Object Databases: An ODMG Approach
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Data models are notations for describing data. Typically, they are used to describe the structure and content of databases. As such, they have similar goals to data types (q.v.), which describe data within programs. At least some researchers believe that it will prove possible to use the same notations for both data types and data stored in databases.