Utilities › Data Management Utility (DMU) › Control Statement Functions › CHANGE Statement

CHANGE Statement

The statement type C represents a CHANGE statement. The following input statement fields must be present to locate the corresponding record(s) on the input tape to be modified:

• CPU Identification (Resource Identification)
• Run Date
• Partition Identification (User or Subresource Identification)
• Job Start Time
• Step Stop Time

In order to modify all Job steps within the same job as defined on the CHANGE statement, the action code should be J and the step Stop Time must be coded to further qualify the tape record as the specific and only step within a job to be modified. The following CHANGE statement fields may be used to modify the corresponding input record fields:

• Job Name (Function Name)
• User Information (Accounting Information)
• Cancel Code (Action Code)
• Phase Name (Subfunction Name)
• CPU Time (Utilization)

The update method employed by the DMU program requires the user to code only the fields to be modified. Blank fields on the CHARGE statement indicate that there is no change for that field. Nonblank fields are moved to the corresponding fields in the output tape record. If the user wants an alphanumeric field changed to blanks or a numeric field changed to zeros, then a question mark (?) should be coded in the first position of the appropriate CHANGE statement field. Without this feature it would be impossible to blank out a field on the output tape since all blank fields on a CHANGE statement are ignored. In addition to the previously listed data elements, the Start and Stop Time fields can be modified because they are used to locate the input tape record for modification. The change data or new Start and Stop Time fields are coded in the CHANGE Start Time and CHANGE Stop Time fields. When present, they follow the same rules as the other change fields.