DBCS data differs from SBCS data when it appears on your terminal. It occupies twice as much space on the screen as SBCS data. When double-byte characters are displayed on your terminal screen, the SO and SI characters take up one space each. If you are using a terminal that supports DBCS data, such as an IBM 5560, you can choose to display the SO and SI delimiters in your data or make them appear as spaces.
When QMF displays DBCS data in the Table Editor, it adjusts the length of the input field for a column to allow for the SI and SO characters. This is especially evident in the Show Field window, where QMF inserts an SI or SO character or both on every line of the window. If you type over the SI characters and the SO characters, you can create an overflow (or error) condition.
You can display any QMF objects that contain DBCS data from the QMF Database Object List, with or without a DBCS terminal. However, if the object name contains double-byte characters, and you have a non-DBCS terminal, all double-byte characters are altered. When you enter the DISPLAY command next to the DBCS object you want to display, clear the rest of the row by pressing the Erase EOF key before you press Enter.
Although QMF can display DBCS data in the Table Editor on a non-DBCS terminal, you cannot change the data. If you want to change DBCS data by using the Table Editor, you must use a terminal that supports DBCS data, such as an IBM 5560.