Relation Variable or Relvar
The state of a Relation at a specific point in time. More simply the contents of a table at a specific point in time.
Example:
User Table @ 13:05:54 on 2026-04-22
| UserId | UserName | Password | |
|---|---|---|---|
| 1 | AJones | alex.jones@abc.com | ######## |
| 2 | BSmith | bob.smith@def.com | ######## |
Or:
User Table @ 11:54:17 on 2026-04-23
| UserId | UserName | Password | |
|---|---|---|---|
| 1 | AJones | alex.jones@abc.com | ######## |
| 2 | BSmith | bob.smith@def.com | ######## |
| 3 | CBloggs | chris.bloggs@xyz.com | ######## |