SQL Fundamentals

In this chapter, you will see some familiar SQL commands with some surprising variations. SQL includes many subtleties that the discerning programmer can exploit. With better SQL, you can do more processing at the database and less processing in your application. By and large, this redistribution of labor will be better for the application and better for the database; it should also reduce the traffic between these components. In addition, by improving your SQL, you will make your queries easier to read.

Each main SQL engine has a command-line interface. Although such interfaces appear ancient, they are still essential utilities for all SQL hackers. Each interface has its own peculiarities, but they all do essentially the same job. You can find details of the command-line interfaces for SQL Server, Oracle, MySQL, Access, DB2, and PostgreSQL in "Run SQL from the Command Line" [Hack #1].

SQL Fundamentals

Joins, Unions, and Views

Text Handling

Date Handling

Number Crunching

Online Applications

Organizing Data

Storing Small Amounts of Data

Locking and Performance


Users and Administration

Wider Access


SQL Hacks
SQL Hacks
ISBN: 0596527993
EAN: 2147483647
Year: 2004
Pages: 147

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