Steps for changing the MAXLENGTH of a numeric field

Perform the following steps to change the MAXLENGTH attribute of an existing custom field with the TYPE(NUM) attribute.

Issue the RLIST command to review the attributes of the custom field. Record the values for the MAXLENGTH, MAXVALUE, and MINVALUE attributes.

Example:

RLIST CFIELD USER.CSDATA.SALRYCAP NORACF CFDEF

 CLASS    NAME
 -----    ---- 
 CFIELD   USER.CSDATA.SALRYCAP 
 
 CFDEF INFORMATION 
 ----------------- 
 TYPE= NUM 
 MAXLENGTH= 00000006 
 MAXVALUE= 0000999999 
 MINVALUE= 0000000100 
 FIRST= NUMERIC 
 OTHER= NUMERIC 
 MIXED= NO 
 HELP= SALARY MAXIMUM, 3-6 DIGITS 
 LISTHEAD= SALARY CAP =

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Issue the RALTER command to update the values for MAXLENGTH and other related attributes, as needed.
Example:
```
RALTER CFIELD USER.CSDATA.SALRYCAP 
   CFDEF(MAXLENGTH(8) MAXVALUE(99999999) MINVALUE(1000) 
   HELP('SALARY MAXIMUM, 4-8 DIGITS'))
```
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Reissue the RLIST command to review attributes of the updated custom field.

Example:

RLIST CFIELD USER.CSDATA.SALRYCAP NORACF CFDEF

 CLASS    NAME
 -----    ---- 
 CFIELD   USER.CSDATA.SALRYCAP 
 
 CFDEF INFORMATION 
 ----------------- 
 TYPE= NUM 
 MAXLENGTH= 00000008 
 MAXVALUE= 0099999999 
 MINVALUE= 0000001000 
 FIRST= NUMERIC 
 OTHER= NUMERIC 
 MIXED= NO 
 HELP= SALARY MAXIMUM, 4-8 DIGITS 
 LISTHEAD= SALARY CAP =

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Activate the new custom field using the IRRDPI00 UPDATE command to refresh the dynamic parse definitions on each system that will use the custom field. For instructions, see Steps for activating a custom field.
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You have now changed the MAXLENGTH and other related attributes for a numeric field using the RALTER command. You can now begin to add data for the changed custom field.