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CSE
5th Semester
CS-502
Unit 2 Notes

CS-502 Database Management Systems Unit 2 Notes

Notes and important questions for unit 2: Relational Data Models.

Unit 2 · Short notes Relational Data Models Domains, tuples, attributes, relations and characteristics of relations · Keys and key attributes of relation · Relational database schemas and integrity constraints · Referential integrity, intension and extension · SQL – DDL and DML, integrity constraints, complex queries, various joins, indexing, triggers, assertions · Relational algebra and relational calculus

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