The following table identifies and describes the environment variables used with database compaction jobs.

Table 1. Environment variables for Trend Data Compaction jobs
Variable Description
FM_DBCCOMPACTDAYS Identifies the number of days for which you intend to compact data. A day, as defined for this field, begins at midnight.
FM_DBCPURGEDAYS Specifies the number of days' worth of data you want purged from the database.