Editing Testing (section)

=== Database server ===
==== MySQL ====
[http://dev.mysql.com/doc/refman/5.1/en/server-logs.html MySQL Server Logs]: 
* step1: verify the system variable<ref>[https://dev.mysql.com/doc/refman/5.7/en/show-variables.html MySQL :: MySQL 5.7 Reference Manual :: 13.7.5.39 SHOW VARIABLES Syntax]</ref>
<pre>
mysql> SHOW VARIABLES LIKE '%general_log%';
mysql> SHOW GLOBAL VARIABLES LIKE '%general_log%';
</pre>
* step2: enable logging /var/log/mysql.log (location was set up in the configuration file /etc/my.cnf or my.ini) <ref>[http://blog.longwin.com.tw/2005/10/mysql_query_slow_find/ 找出 MySQL 哪些 Query 速度較慢 | Tsung's Blog]</ref>
<pre>
[mysqld] 
## includes all SQL queries/commands
# general_log = 1
# general_log_file="general_log_file.log"
log-error=/var/log/mysql/error.log
log-slow-queries = /var/log/mysql/mysql-slow.log
#another syntax
#slow_query_log_file = mysql-slow.log
long_query_time = 1
log-long-format
</pre>

* step3: restart MySQL service

==== Microsoft SQL Server ====
* [http://expressprofiler.codeplex.com/ ExpressProfiler] includes all SQL queries/commands
* [http://msdn.microsoft.com/en-us/library/ms187109.aspx SQL Server Error Log] / [http://msdn.microsoft.com/zh-tw/library/ms187885(v=sql.105).aspx 檢視 SQL Server 錯誤記錄] "contains user-defined events and certain system events ..." quoted from [http://msdn.microsoft.com/en-us/library/ms187109.aspx SQL Server Error Log] ex: X:\Program Files\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQL\Log\ERRORLOG 
* [http://stackoverflow.com/questions/123781/logging-all-queries-on-a-sql-server-2008-express-database Logging ALL Queries on a SQL Server 2008 Express Database? - Stack Overflow] ''not tested''