'Primary key constraints' presentation slideshows

CMPT 354

The Relational Model. CMPT 354. The Relational Model. What is the Relational Model Relations Domain Constraints SQL Integrity Constraints Translating an ER diagram to the Relational Model and SQL Views. Relational Model. {x , y, z }. Relational Databases.

937 views • 70 slides

Dato

708 views • 35 slides

ICS 321 Fall 2009 The Relational Model (ii)

ICS 321 Fall 2009 The Relational Model (ii). Asst. Prof. Lipyeow Lim Information and Computer Science Department University of Hawaii at Manoa. Integrity Constraints (ICs). IC: condition that must be true for any instance of the database; e.g., domain constraints.

322 views • 24 slides

The Relational Model & Mapping E/R Diagrams to Relational Schemas

223 views • 21 slides

Relational Database Appendix

Relational Database Appendix. Entity /relation. Entity Subtype. Relationship. Composite Entity. ER Diagram. Shorthand Description. State ( StateAbbrev , StateName, EnteredUnionOrder, StateBird, StatePopulation)

293 views • 17 slides

SQL DDL and Oracle utilities

SQL DDL and Oracle utilities. Datatypes in SQL. INT (or) INTEGER FLOAT (or) REAL DECIMAL (n, m) CHAR (n) VARCHAR (n) DATE, TIME. SQL DDL. DDL = Data Definition Language

92 views • 8 slides