101companies

Headline

A relational database using SQL Server

Motivation

Please note: This implementation is prerequisite for Contribution:ef. A simple relational schema is used to model the data part of the system:Company. In particular, there are tables for companies, departments, employees (and persons). Further, there are primary and foreign keys that represent different types of relationships. For instance, departments associate themselves with a company by a foreign key. The SQL-based implementation also includes triggers--to represent constrains/cardinality. Finally, there are SQL scripts covering the operations for totaling and cutting salaries. An implementation of the query for the depth of departmental nesting is available as well, but it is strikingly complex because of SQL's known issues with recursion.

Architecture

The following artifacts are used to create relational model for 101companies:

  • Tables (TableName.table.sql)
  • Primary keys (Name.pkey.sql)
  • Foreign keys (Name.fkey.sql)
  • Triggers (Name.trigger.sql)
The scripts/Post-Deployment folder contains script file executed after the database schema was created to fill in the database with actual 101companies data.

Usage

Technology:Visual Studio 2010 should be used to open a project file. The deploy option should be used to create the database. The target connection (in project properties) should be adjusted for the local database server.

This contribution has been tested with SQL Server 2008 and Visual Studio 2010.

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