Initial commit

README.md

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 northwind
 =========
 
-MySQL equivalent of MS Northwind database (MS Access 2010)
+The Northwind database provided with Microsoft Access is an excellent schema example for managing small business customers, orders, inventory, purchasing, suppliers, shipping, and employees. My problem was that I wanted to experiment with it using [MySQL](http://www.mysql.com) and the [Yii Framework](http://www.yiiframework.com).
+
+Files
+-----
+* Model: northwind_mysql.mwb (MySQL Workbench v6.02)
+* ERD: northwind_mysql.pdf
+* Structure 1: northwind_mysql-structure.sql
+* Structure 2: northwind_mysql-structure-timestamp.sql (record create and modified columns use DEFAULT CURRENT_TIMESTAMP, requires MySQL 5.6.5+)
+* Data: northwind_mysql-data.sql
+
+Procedure
+---------
+* Northwind database template created using MS Access 2010 (MS Access 2010 > File > New > Sample Templates > Northwind > SaveAs)
+* Convert Northwind.accdb to MySQL syntax using BullZip [Access to MySQL](http://www.bullzip.com) (version 5.1.242). [BullZip states Access to MySQL](http://www.bullzip.com/download.php) is "FREEWARE may be used free of charge for non-commercial purposes." (unfortunately it does not convert foreign key relationships though).
+* Converted CamelCase identifiers to lower_case_with_underscore
+* Replaced space and slash characters in identifiers with _underscores_
+* Renamed primary key columns "id"
+* Renamed foreign key columns "xxx_id" (e.g. "inventory_id")
+* Changed record create and modified date columns to type DATETIME to avoid TIMESTAMP range (1997 - 2038 UTC) and other limitations
+* Added foreign key relationships and created ERD using MySQL Workbench