Popular SQL Implementations
This section introduces some of the more popular implementations of SQL. Implementations differ, each having their own strengths and weaknesses. Where some implementations of SQL have been developed for PC use and easy user interactivity, others have been developed to accommodate very large databases (VLDB). This section introduces selected key features of some implementations.
In addition to serving as a SQL reference, this book also contains many practical software development examples. SQL is useful only when it solves your real-world problems, which occur inside your code.
We use Microsoft Access, a PC-based DBMS, to illustrate some of the examples in this text. Access is very easy to use. ...