Time to Update a Database with 10,000 Entries

Does anybody know about how long it would take to reorganize a database with about 10,000 entries?

 

What do you mean by re organize.

 

Lets say it was a DB of first and last name and every new entry was added to the top and once a day a script would alphabetize the whole thing.

 

Why do you want to create a new sorted table everyday?

You can just create an index on the fields and use ORDER BY
to retrieve it in an ordered sequence.

 

it is more of a what if question. I know that if I had a table of first and last name I would not add new entries to the top. I am just curious to see how long it would take to reorder a DB of about 10000 records.

 

depends on the cpu, memory available, database software, indexes on the table, ...
only way to know it is to try it

if you don't want to try it but have a rough idea (if it's seconds or minutes): see how much the difference is between these statements:
select * from table
select * from table order by lastname, firstname