September 2014
Intermediate to advanced
384 pages
9h 28m
English
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Chapter 2. Debugging
In this chapter, we will discuss the basic techniques that can be used to find problems in the MariaDB server and in SQL statements. The following are some of the basic tools and techniques used:
- Error conditions
- The diagnostics area
- The error log
- The general query log
- Maintaining logs
- The
SQL_ERROR_LOGplugin - Debugging of stored programs
Understanding error conditions in MariaDB
Before discussing the database debugging techniques, it is important to understand the most important tools used by MariaDB that notify us about error conditions, that is, when something goes wrong.
An error in MariaDB consists of the following types of data:
- A
SQLSTATEvalue - An error number
- An error message
While conditions are usually generated by the server, ...
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