file | Unify value with the name of the file
with which the table is associated. |
field(N) | Unify value with
declaration of n-th (1-based) field. |
field_separator | Unify value with the field
separator character. |
record_separator | Unify value with the
record separator character. |
key_field | Unify value with the 1-based
index of the field that is sorted or fails if the table contains no
sorted fields. |
field_count | Unify value with the total
number of columns in the table. |
size | Unify value with the number of
characters in the table-file, not the number of records. |
window | Unify value with a term Start
- Size, indicating the properties of the current
window. |