MySQL triggers allow you to execute stored program code whenever a DML statement is issued against a database table. In MySQL 5.0, triggers can be used to automate denormalization or logging.

Implementation of data validation in MySQL triggers is more of a challenge, as in MySQL there is no easy or straightforward way to raise an error condition or abort the transaction when validation fails. This will be remedied when the SIGNAL statement is implemented in MySQL 5.2. In this chapter we presented a workaround that does allow data validation triggers to be created in the interim, although the error text generated is far from ideal.

Part I: Stored Programming Fundamentals

Introduction to MySQL Stored Programs

MySQL Stored Programming Tutorial

Language Fundamentals

Blocks, Conditional Statements, and Iterative Programming

Using SQL in Stored Programming

Error Handling

Part II: Stored Program Construction

Creating and Maintaining Stored Programs

Transaction Management

MySQL Built-in Functions

Stored Functions


Part III: Using MySQL Stored Programs in Applications

Using MySQL Stored Programs in Applications

Using MySQL Stored Programs with PHP

Using MySQL Stored Programs with Java

Using MySQL Stored Programs with Perl

Using MySQL Stored Programs with Python

Using MySQL Stored Programs with .NET

Part IV: Optimizing Stored Programs

Stored Program Security

Tuning Stored Programs and Their SQL

Basic SQL Tuning

Advanced SQL Tuning

Optimizing Stored Program Code

Best Practices in MySQL Stored Program Development

MySQL Stored Procedure Programming
MySQL Stored Procedure Programming
ISBN: 0596100892
EAN: 2147483647
Year: 2004
Pages: 208 © 2008-2020.
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