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.
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