From OpenSCADAWiki
Types of MySQL database elements are corresponding with the types of OpenSCADA elements in the following way:
| Types of OpenSCADA fields | Types of fields of DB MySQL |
|---|---|
| TFld::String | char (n), text, mediumtext |
| TFld::Integer | int (n), DATETIME [for fields with a flag TFld::DateTimeDec] |
| TFld::Real | double(n, m) |
| TFld::Boolean | tinyint(1) |