'Foreign keys' presentation slideshows

Introduction to Relational Databases and SQL

Introduction to Relational Databases and SQL. Brian Panulla Web 2004 Pre-Conference. Administrivia. Objectives Agenda Prerequisites Schedule Logistics Presenter Introduction Attendee Introductions. Objectives.

1.51k views • 107 slides

Software Development using Production Data

573 views • 48 slides

An ODBC* Driver for APL * also ADO, ADO.NET and JDBC

An ODBC* Driver for APL * also ADO, ADO.NET and JDBC. Morten Kromberg Dyalog Ltd. Agenda. Why Would You Want One? Overview of SQAPL Server Architecture Structure of the APL Server Sample Detailed Discussion of 22 Server Functions Login Data Dictionary Calls SELECT statements

606 views • 44 slides

Chapter 5

Chapter 5. The Relational Data Model and Relational Database Constraints. Relational Model Concepts. Domains, Attributes, Tuples, and Relations (1/5). A domain D is a set of atomic values.

539 views • 37 slides

Flawless Logical to Physical Data Model Transformations

466 views • 35 slides

Chapter Outline

Chapter Outline. ER-to-Relational Schema Mapping Algorithm Step 1: Mapping of Regular Entity Types Step 2: Mapping of Weak Entity Types Step 3: Mapping of Binary 1:1 Relation Types Step 4: Mapping of Binary 1:N Relationship Types. Step 5: Mapping of Binary M:N Relationship Types.

506 views • 32 slides

The relational model

The relational model. Concepts and terminology Operations (relational algebra) Integrity constraints. Relational Databases. All data is organised in tables with atomic values Associations are represented by primary key/foreign key connections

377 views • 22 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. FIRM. DIVISION. DEPARTMENT. SECTION.

468 views • 21 slides

DATA MODELING AND DATABASE DESIGN Part 3

DATA MODELING AND DATABASE DESIGN Part 3. Objectives. Translate Logical to Physical design Steps for converting (mapping) Resolved ERD to set of Table Instance Charts Table Instance Charts symbols. Some mapping examples. Database Design - from Logical to Physical.

304 views • 21 slides

jAdmin: Remote database admin tool

jAdmin: Remote database admin tool. Introduction. Growing demand for large scale, multi-user applications Persistent, efficient, data storage Databases! With databases come tools to use them. Motivation. Major database admin tools MyPHPAdmin iSQL*Plus Microsoft Access. My Project.

319 views • 20 slides

Lecture 10 Conversion to tables

Database Design Concepts INFO1408. Lecture 10 Conversion to tables. Introduction. The entities in our ERDs become tables in our design How do the relationships in our ERDs affect our table designs?

297 views • 19 slides

Relational Model

Relational Model. Stores data as tables Each column contains values about the same attribute Each column has a distinct name Each row contains values for a given entity Each row is distinct Order of columns (and rows) is immaterial Cells are single valued. Terminology. Relationships.

319 views • 17 slides

Introduction to Database Management Systems

Introduction to Database Management Systems. Dr. Adam P. Anthony. Lecture Overview. Joins Views Transactions Data Integrity Constraints. Joins: The Full Story. Join: by itself, nothing more than a Cartesian product: FROM student join takes == FROM student, takes Can Add an ON keyword

304 views • 16 slides

ER & EER to Relational Mapping

ER & EER to Relational Mapping. ER to Relational Mapping.

324 views • 14 slides

Session Objectives # 21

Session Objectives # 21 . Key Words. Key Words. Data Redundancy. Entity. Validation. ERD. Primary Key. Foreign Key. Appropriate use of validation.

174 views • 10 slides

Using the DAWG Test Cases with Relational Databases

Using the DAWG Test Cases with Relational Databases. Matthew Gheen mgheen@mcdonaldbradley.com October 26, 2007. Agenda. Introduction Running the tests Results Next Steps Discussion. Introduction. Semantic Bridge for Relational Databases (SBRD) Translates SPARQL to SQL

199 views • 10 slides

Database Fundamentals

260 views • 9 slides

Description and exemplification of entity/event modelling.

Description and exemplification of entity/event modelling. Index and Key The Index/Key column of the data dictionary is used to indicate whether or not the data item is to be indexed and if it is to be indexed, whether or not the data item is a primary key or a foreign key. Indexing

216 views • 9 slides

Integrity Constraints on Relational DB's

Integrity Constraints on Relational DB's. The meaningfulness of the data in the database is mostly conveyed through the structure of the tables and the names used. However, some of the meaning is captured in the form of integrity constraints.

447 views • 8 slides

Normalization Exercise

Normalization Exercise. Consider the following 3NF relations about a sorority or fraternity. MEMBER( member_ID , Name,Address , Dues_Owed ) OFFICE( Office_Name , Officer_ID , Term_Start_Date , Budget) EXPENSE( Ledger_Number , Office_Name , Expense_Date , Amt_Owed )

923 views • 1 slides