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

if you do it you will end up writing queries like:

SELECT user.user_name, user.user_password, user.user_firstname ...

instead of

SELECT user.name, user.password, user.firstname

so IMO the answer to your question is quite clear.