(Here’s more information on defining SQL Server constraints.) The code below defines ... SalesHistory and the Products tables. If a delete statement affects rows in a foreign key table, those ...

SQL syntax is highly standardized ... The simple answer is that many applications still call for the kinds of constraints, consistency, and safeguards that SQL databases provide.

Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...