There are several variables that can be set in your run-time configuration file that affect Acu4GL processing. Those listed below are applicable to any RDBMS with which Acu4GL communicates. Some configuration variables are database-specific; those variables are discussed in the individual database product topics found in this User's Guide.
Most configuration variables can be read with the ACCEPT FROM ENVIRONMENT verb. If the variable to be read is numeric, the receiving field must be defined either as a numeric field or as an alphanumeric field of five or more characters. If it is defined as alphanumeric and is longer than five characters, the value that is read from the environment will occupy the leftmost five characters of the field and the remainder will be space-filled.