Is prefixing each field name in a table with abbreviated table name a good practice?

Question

Do you prefix each field in a table with abbreviated table name?

Example:

Table: User

Fields:
user_id
user_name
user_password

Or d

Answer 1

Personally, on the 'user' table, my column would just be 'id'.

But any foriegn key columns on different tables pointing to that column, I'd call the column 'user_id'.

so you might end up with something like this :

select  *
from    order
        inner join user
            on user.id=order.user_id