MultiValue
MultiValue DBMS are database management systems, which - similar to relational systems - store data in tables. However, other than RDBMSs, they can assign more than one value to a record's attribute.
Reality commands and other features that provide compatibility with other MultiValue systems are English, PROC and DataBasic commands.
All MultiValue systems share main features that are very similar, but these are sometimes given different names. The following are the names used in Reality:
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Command processor – TCL (Terminal Control Language)
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Query language – English
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Programming language – DataBasic
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Batch processing language – PROC
The format used for Reality tape images is different to the pseudo-floppy (.vtf) format used by other MultiValue systems. Reality provides commands that allow you to transfer data between Reality and other MultiValue systems by converting Reality tape images into MultiValue pseudo-floppy images and vice versa.
The command FLOPPYTOTAPE converts a MultiValue pseudo-floppy image into a Reality tape image.
MIGRATE.ACCOUNT converts accounts saved from other MultiValue systems to run on Reality. This must be run after an account to be converted has been loaded (using ACCOUNT-RESTORE with the appropriate options), but before logging on to the account for the first time.