The limit for JISAM is currently 9EB (Exabytes, a million terabytes). You can see this and more information about JISAM indexed files in the SDK Users guide, under Files Management, on the "Indexed Files" page. Read More
JISAM
Yes, you can encrypt data in JISAM files, as long as you don't need to read them with ODBC or JDBC. Simply add "with encryption" in your select statement. The encryption key is set in the configuration file with the variable: iscobol.file... Read More
After a START statement READ PREVIOUS reads the current record (i.e. the record whose key value is equal to the file position indicator). On an AT END condition READ PREVIOUS returns the last record in the file. Note that starting in isCOBOL... Read More