ENABLE Reference Manual

ENABLE ATTRIBUTES
FILL Attribute
the application, upon execution, performs an initial read
operation on the file represented by "region-box." If that file
contains a record for region 4, the application retrieves that
record. Because READ is set to OFF, the record for region 4 is
the only record that the application can access. Because the
application can only read one record for "region-box," it can
only read records for "branch-box" if their join field value is
4. The application is limited to this subset of branch records
because:
• The application must either insert or read a record from
"region-box" before it can perform any operations on
"branch-box" (It cannot insert a record for "region-box"
because INSERT is set to OFF for that box.)
• The application uses the value of the "regnum" as a key to
read or insert a record for "branch-box"
• A "regnum" value of 4 is the only value that the application
can read for "region-box"
Example
The following command sets the box attribute FILL to ON:
SET FILL ON
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