0012 00TM 1-6625-724-13&P0012 00-2not free up space for the measurement that is being attempted. At this point it is necessary to run theCompress utility.Compress basically frees all the old structures and recopies data into new clean files. This tendency to notre-use old database records results in what is commonly referred to as database fragmentation.2.DeletingDataRecordsCAUTIONThis operation [deleting data records] willpermanently delete collected data.This operation will delete data from the database. Select the option by placing the cursor over Delete andpressing the DO key. Data can be deleted in one of the following ways:(a) DeleteAircraftData. Deletes all flight data records for this type of aircraft.(b) DeletebyTailNumber. Deletes all flight data for the chosen tail number of the aircraft.(c) DeletebyFlight. Deletes selected flight data for the chosen aircraft and tail number.(d) DeleteAircraftSetup. Deletes all flight data and the setup information for the chosen aircraft.(e) DeleteCreditCardData. If backed-up data exists on the installed CCM, this option may be used todelete the stored data by Aircraft Type, Tail Number, or Flights.After selecting one of the above options, prompting will occur one more time by a safety screen. Use theRIGHT or LEFT arrow keys to place a Yes in the question box and press the DO key.NOTEWhen operation is to delete aircraft setup, a special8-digit number must be entered in the Entry Form that isdisplayed. When prompted, enter the following number:27182818The deletion operation allows deletions based on aircraft type, tail number, and flights. If an aircraft isdeleted, all setup data and flight results will be removed. If a flight or tail number is chosen, then the flightresults will be deleted. Tail numbers and aircraft can be deleted whether or not flight results exist.Deletion by Flight ID is a more discriminating way of removing data and freeing space. Remember, the FlightID is a unique number that is assigned to a particular flight. For instance, if a measurement is desired on theflight line and a database full error occurs, it will be necessary to delete data. Returning to the oldest data forthat Flight ID and deleting the oldest data associated with that Flight ID would enable retaining more recentdata.NOTEAlways compress after deleting data.b.Selecting Data TransferPlace the cursor over the Data Transfer, figure 3, selection from the manager menu and press DO. Three datatransfer options will appear in the next screen. The functions and operation of these three functions are explainedin the following paragraphs.
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