MT4toMySQL
Indicator automatically exports data from MetaTrader 4 to MySQL database.
Uses MQLMYSQL library by Eugeniy Lugovoy (source included).
Version 2.0 exporting all data uses third party library (Symbols.mqh)
2nd version first appeared: http://www.talaikis.com/all-symbol-data-export-indicator-from-metatrader-4-to-mysql/