Why are FORMAT instructions not recognized?

I entered the following statement in SQLPlus:
COLUMN NAME FORMAT A10
COLUMN VALUE FORMAT A100
show parameter spfile
but the column widths are still the same as without the FORMAT instructions.
Why?
Peter

"show parameter" is an internal SQLPlus command. It's output is not bound to format settings you have set.
If you want the information to abide to your format settings then manually perform the query that show parameter is doing for you under the hoods:
select name,value
from v$parameter
where name='spfile';This should follow your format settings.
Toon

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