You can use the Data File Editor to edit both unformatted and formatted data, and indexed or non-indexed data.
Note: If a field or record contains invalid data, it represents the invalid data as asterisks (*). If you select such a field or
record, the Data File Editor prompts you for an opportunity to initialize it.
Unformatted Data
When you insert or delete data in the unformatted view, you can potentially create a shift in all of your data thereby causing
file corruption. To avoid this, we suggest that you check the
Always overtype in unformatted view configuration option. For more information, see
Configuring the Data File Editor.
Tip: If you have applied a record layout file, you can see the edits made in the unformatted view applied to the formatted view.
To do this, click
View > Data File Editor > Refresh Formatted Pane.
Formatted Data
In the formatted view, the editing rules depend on whether you are editing alphanumeric or numeric data.
- Numeric data
- You always edit numeric fields in overtype mode regardless of configuration settings. Numeric fields can accept numeric data
only. When you delete numeric data, each digit is set to zero.
- Alphanumeric data
- You always edit alphanumeric fields in insert mode regardless of configuration settings; however, you can only insert new
characters into an alphanumeric field if the field has space for them. For example, if a PIC X(4) field already has four characters
in the field, you must delete these and replace them with the new data. When you delete alphanumeric characters without replacing
them, the Data File Editor adds spaces to the right edge of the field.
Indexed Data
When editing an indexed file, exercise caution when making changes to key values:
- Do not change a key in one record to the same value as another unless duplicate key values are allowed. You should not have
duplicate primary keys in a file.
- If you edit a record area containing a key, be careful not to change the logical position of the record in the file.