One or more redefinitions of the same storage area are permitted. The entries that give the new descriptions of the storage area must immediately follow the description of the redefined area without intervening entries that define new character positions. Multiple redefinitions must all use the data-name of the original entry that defined this storage area. For example:
05 A PICTURE 9999.
05 B REDEFINES A PICTURE 9V999.
05 C REDEFINES A PICTURE 99V99.
The redefining entry (identified by data-name-1) and any subordinate entries must not contain any VALUE clauses.