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Integrity Constraints

Integrity Constraints. An important functionality of a DBMS is to enable the specification of integrity constraints and to enforce them. Knowledge of integrity constraints is also useful for query optimization. Examples of constraints: keys, superkeys foreign keys

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873 views • 46 slides

Functionality of a DBMS

Functionality of a DBMS. Data Dictionary Management Storage management Data storage Definition Language (DDL) High level query and data manipulation language SQL/XQuery etc. May tell us what we are missing in text-based search Efficient query processing May change in the internet scenario

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603 views • 29 slides

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Product1 category - PowerPoint PPT Presentation

Integrity Constraints

Functionality of a DBMS