ALR0038W Segment name of table/cluster table name on host: server name, RDBMS: rdbms type rdbms name, database: database name, has amount of unused, wasted space. This represents amount of the total space allocated to the segment, and exceeds the threshold value of threshold. This segment is a type type segment.
Explanation
The segment of the specified table/cluster on the specified host, RDBMS and database has wasted space.