Data Type Conversion
A Pascal variable declaration must be compatible with the Ingres value it represents. Numeric Ingres values can be set by and retrieved into numeric variables, and Ingres character values can be set by and retrieved into character string variables.
Data type conversion occurs automatically for different numeric types, as follows:
• From floating-point Ingres database column values into integer Pascal variables
• From decimal to floating-point
• From floating-point to decimal
• For different length character strings, such as from varying-length Ingres character fields into fixed-length Pascal character string variables
Ingres does not automatically convert between numeric and character types. You must use the Ingres type conversion functions, the Ingres ascii function, or a Pascal conversion procedure for this purpose.