SQL Server allows you to define cascading ... sometimes affecting several tables that were related to the primary key table. Let’s look at how these constraints are defined, and some situations ...

Fortunately, tools like MySQL Workbench and SQL Server Management Studio simplify ... and establish relationships between tables. Primary keys serve as unique identifiers for each record within ...

In this third and final installment on using SQLite from C++, I want to begin exploring some of the internals of this amazing little database engine. SQLite does things quite differently than most ...

There are two attributes you can put on your entity class properties: one is a convenience, the other is essential, and both are required when the primary key for a table consists of two columns. When ...

This field is called the Primary Key Field for that table. In SQL 7 and other high-end relational databases, each table is required to have a Unique Row Identifier or Primary Key in order to interact ...