The Ingres runtime system provides automatic data type conversion between numeric-type values in the database and forms system and numeric BASIC variables. The standard type conversion rules (according to standard VAX rules) are followed. For example, if you assign a real variable to an integer-valued field, the digits after the decimal point of the variable's value are truncated. Runtime errors are generated for overflow on conversion.

The Ingres money type is represented as real double, an 8-byte floating-point value.