File Menu
Split Datafile

Why Split a Datafile?

The iPhone has memory constraints that are rather severe when compared with the Macintosh. As a result, it may not be possible to move large datafiles intact to iData Mobile. We recommend that iData Mobile datafiles be no larger than 2 MB.

If you are going to convert an iData Pro datafile to work on iData Mobile, be sure to save an iData Mobile version first, since iData Mobile datafiles are generally much smaller than iData Pro datafiles. Then determine whether it is large enough to require splitting.

In fact, it is even possible for datafiles to become too large to open on the Macintosh, although this is a rare problem. Extremely large datafiles can become slow to open and close, though, even if they are not too large to open, so splitting such datafiles can be a useful option.

This command provides a mechanism for splitting a single datafile into two or more smaller datafiles. Selected records are saved to a new datafile, then are removed from the original datafile. Depending on the nature of the datafile, records can be selected on the basis of content, creation date or modification date.

To Split a Datafile:

    1. In iData Pro, open the datafile that you want to split. (If the datafile is already open, and if it has had any changes made to it, it would be a good idea to save those changes before proceeding.)

    2. Use commands from the Select menu to select those records that you want to split off into a new datafile.

    3. Once the current set of selected records contains all of the records that you want to split off, select Split Datafile... in the File menu.

    The Save dialog that comes up will have a default file name composed of the current datafile name followed by "Selected". You may change it to whatever you like (except that it cannot be the same as the current datafile name).

    The new datafile will open alongside the original datafile, so that you can compare them. If you are not satisfied with the result, you can close the new datafile and merge it back into the original datafile.

    You may repeat this process as often as desired.
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