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Introduction to SQL


Today, we take a look at what SQL is and describe its major features and benefits. This is chapter one of McGraw-Hill/Osborne's SQL: The Complete Reference (ISBN 0-07-222559-9, 2004) by James R. Groff and Paul N. Weinberg.

Author Info:
By: McGraw-Hill/Osborne
Rating: 4 stars4 stars4 stars4 stars4 stars / 165
May 17, 2004
TABLE OF CONTENTS:
  1. · Introduction to SQL
  2. · The SQL Language
  3. · The Role of SQL
  4. · SQL Features and Benefits
  5. · SQL Features and Benefits 2
  6. · SQL Features and Benefits 3
  7. · SQL Features and Benefits 4
  8. · SQL Features and Benefits 5

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Introduction to SQL - SQL Features and Benefits 5
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Java Integration (JDBC)

A major area of SQL development over the last five to ten years has been the integration of SQL with Java. Seeing the need to link the Java language to existing relational databases, Sun Microsystems (the creator of Java) introduced Java Database Connectivity (JDBC), a standard API that allows Java programs to use SQL for database access. JDBC received a further boost when it was adopted as the data access standard within the Java2 Enterprise Edition (J2EE) specification, which defines the operating environment provided by all of the leading Internet application servers. In addition to its role as a programming language from which databases are used, many of the leading database vendors have also announced or implemented Java support within their database systems, allowing Java to be used as a language for stored procedures and business logic within the database itself. This trend toward integration between Java and SQL will insure the continued importance of SQL in the new era of Java-based programming.

Industry Infrastructure

Perhaps the most important factor contributing to the growing importance of SQL is the emergence of an entire computer industry infrastructure based on SQL. SQL-based relational database systems are an important part of this infrastructure. Enterprise applications that use SQL and require a SQL-based database are another important part, as are reporting tools, data-entry tools, design tools, programming tools, and a host of other tools that simplify the use of SQL. A large pool of experienced SQL programmers is a critical part of the infrastructure. Another important part is the training and support services that surround SQL and help to create and perpetuate SQL expertise. An entire subindustry has emerged around SQL consulting, optimization, and performance-tuning. All parts of this infrastructure tend to reinforce one another and contribute to the ongoing success of the other parts. Simply stated, to solve data management problems, the easiest, lowest-risk, lowest-cost solution is almost always a solution based on SQL. 

Remember: this is chapter one of SQL: The Complete Reference, by Groff and Weinberg (McGraw-Hill/Osborne, ISBN 0-07-222559, 2004). You can find this and many other fine McGraw-Hill Osborne books at your favorite bookstores. Buy this book now.


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