Possible to change fixed fields with GDC?

Question

GDC documentation suggests that items in control fields can be changed using GDC - for example, changing "type of record" and "bibliographic level" in the leader. Is this something that can be changed? 

Answer

Yes. There's a consequence called "Replace String At Position" that lets you specify a byte in a control field and enter a new value for it.

For example, if you wanted to update "type of record" to e for a set of records, the consequence would look something like: 

Consequence: Replace String At Position 
Control Field: LDR 
Replace String at Position: 06 
With string: e 

• Article last edited: 16-Nov-2017