'Referential integrity constraint' presentation slideshows

Data Modeling

689 views • 55 slides

Class 2 Introduction to Structured Query Language (SQL)

714 views • 52 slides

IS 325 Notes for Monday September 16, 2013

IS 325 Notes for Monday September 16, 2013. INTRODUCTION. Relational database model - logical database model that represents a database as a collection of related tables Relational schema - visual depiction of the relational database model

591 views • 52 slides

Comp 231 Database Management Systems

Comp 231 Database Management Systems. 6. Integrity Constraints. Integrity Constraints. Domain Constraints Referential Integrity Assertions Triggers Functional Dependencies. Integrity constraints guard against accidental damage to the database, by ensuring that authorized changes

606 views • 40 slides

CSE 480: Database Systems

CSE 480: Database Systems. Lecture 5: Relational Data Model. Lecture Outline. Relational Model Concepts Relations, Attributes, Domains, Tuple, Schema Characteristics of relations Integrity Constraints Domain constraints Key constraints Entity integrity Referential integrity

481 views • 38 slides

The One-to-Many Relationship

The One-to-Many Relationship. Cow of many-well milked and badly fed Spanish proverb. The one-to-many relationship. Entities are related to other entities A 1:m relationship. Hierarchical relationships. Occur frequently Multiple 1:m relationships. STOCK with additional columns.

454 views • 33 slides

Chapter 4~5 Intermediate/Advanced SQL

Chapter 4~5 Intermediate/Advanced SQL. Yonsei University 1 st Semester, 2013 Sanghyun Park. Outline. Integrity Constraints Domain constraints Referential integrity Assertions Triggers Security and Authorization Embedded SQL Dynamic SQL ODBC JDBC. Domain Constraints (1/2).

406 views • 24 slides

The One-to-Many Relationship

The One-to-Many Relationship. Cow of many-well milked and badly fed Spanish proverb. The one-to-many relationship. Entities are related to other entities A 1:m relationship. Hierarchical relationships. Occur frequently Multiple 1:m relationships.

807 views • 22 slides

PostgreSQL dungeon with table inheritance and constraints

PostgreSQL dungeon with table inheritance and constraints. Edel Sherratt. Relations. location{ name, description, is_lit } exit { name, description, is_open , exits_from , leads_to } exit_pair {name_1 , exits_from_1, name_2, exits_from_2}

280 views • 21 slides

The One-to-Many Relationship

The One-to-Many Relationship. The one-to-many relationship. Entities are related to other entities A 1:m relationship. Hierarchical relationships. Occur frequently Multiple 1:m relationships. FIRM. DIVISION. DEPARTMENT. SECTION. Create another entity to avoid update anomalies. Insert

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Further Consolidation

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Lecture 03

Lecture 03. Constraints. Example Schema. Constraints. Constraints. Constraints are restrictions on legal relation states they add further semantics to the schema Domain constraints values for an attribute must be from the domain associated with the attribute Non-null constraints

274 views • 18 slides

Lecture 03

Lecture 03. Constraints. Example Schema. Constraints. Constraints. Constraints are restrictions on legal relation states they add further semantics to the schema Domain constraints values for an attribute must be from the domain associated with the attribute Non-null constraints

293 views • 18 slides

Chapter 6: Integrity and Security

Chapter 6: Integrity and Security. Domain Constraints Referential Integrity Assertions Triggers Security Authorization Authorization in SQL. Domain Constraints.

247 views • 17 slides

Distributed Databases Review

163 views • 7 slides