The Ingres runtime system provides automatic data type conversion between numeric-type values in the database and forms system and numeric Pascal 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 when assigning Ingres numeric values into Pascal variables.

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