Important Notice
The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
Invalid column (ERR : 84)
■ More than one condition can cause this error:
• When opening a file for ISAM and specifying a data type,
you referenced an element name that is not a column name.
• When creating an ISAM index, you named a column that:
♦ Does not exist.
♦ Has a data type that cannot be indexed (an array or
user-defined type).
■ Possible solutions:
• Verify that all element names referenced when opening the
ISAM file are valid column names.
• Verify that columns exist and are not arrays or user-
defined types when creating an ISAM index.
■ If you need additional help, move the cursor to a keyword
and press F1 to open the Help window.