Entering Data Set Names

The data set naming conventions simplify the use of data set names. If the data set name conforms to the conventions, you need to specify only the user-supplied name field when you refer to the data set in commands.

When you specify only the user-supplied name, the system adds the prefix specified in your user profile, sometimes your user ID and, whenever possible, a descriptive qualifier. The system attempts to derive the descriptive qualifier from available information.

Example
If you want to rename data set PREFIX.TEST5.DATA to PREFIX.TEST4.DATA, rather than specify all of the qualifiers in the RENAME command, you can enter only the middle qualifier: `RENAME test5 test4` The system adds your prefix as the first qualifier and adds the data set type `data` because that is the data set type assigned to PREFIX.TEST5.DATA.

In some cases, however, the system prompts you for a descriptive qualifier. If you do not specify enough information, the system issues a message at your terminal requesting the required information.

Example
If you want to edit data set PREFIX.SAMPLE.TEXT using line mode edit, you might enter at the READY mode message: `EDIT sample` The system responds with: `ENTER DATA SET TYPE -` You then enter the valid data set type: `text` Data set PREFIX.SAMPLE.TEXT is then available to you and the system responds with the EDIT mode message. `EDIT`

Note: The system will not append qualifiers to any name enclosed in single quotation marks.