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Semantic SQL is simple to create SQL queries with no Joins or Union statements. The semantic SQL queries are formulated in standard SQL and query the semantic business model (ontology) mapped to the data, instead of querying the data directly. It is also used to query Views created with the semantic model.
What are semantics in SQL?
The semantics of SQL queries is formally defined by stating a set of rules that determine a syntax-driven translation of an SQL query to a formal model. The target model, called Extended Three Valued Predicate Calculus (E3VPC), is largely based on a set of well-known mathematical concepts.01.09.1991
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What does semantic mean in database?
Semantic data is data that has been structured to add meaning to the data. This is done by creating data relationships between the data entities to give truth to the data and the needed importance for data consumption. Semantic data helps with the maintenance of the data consistency relationship between the data.
What is semantic model in database?
Semantic data model (SDM) is a high-level semantics-based database description and structuring formalism (database model) for databases. This database model is designed to capture more of the meaning of an application environment than is possible with contemporary database models.
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What is semantic query in DBMS?
Semantic queries allow for queries and analytics of associative and contextual nature. Semantic queries enable the retrieval of both explicitly and implicitly derived information based on syntactic, semantic and structural information contained in data.
