Get Design Sql Db Diagram Example Download Zip PNG. Basically, those statements switch the current database to classicmodels and query data from the customers table. They underlie all design rules.
An example would be a citizen with a passport (every citizen must have a passport, and a passport is one for every citizen).
For any database, you can create as many database diagrams as you like; Simply extract the zip to a fresh directory and run the sqldeveloper.exe in the top directory. Design your sql database with our free database designer tool. Powerful customization options and text based editor to quickly create database designs.