| SQL adaptation guide For Oracle MySQL 5.x / Data dictionary | |
Informix® supports the BOOLEAN data type, which can store 't' or 'f' values. Genero BDL implements the BOOLEAN data type in a different way: As in other programming languages, Genero BOOLEAN stores integer values 1 or 0 (for TRUE or FALSE). The type was designed this way to assign the result of a boolean expression to a BOOLEAN variable.
MySQL supports the BOOLEAN data type and stores 1 or 0 integer values for TRUE and FALSE.
The MySQL database interface supports the BOOLEAN data type.