Is it an acceptable practice to use a single sequence as a primary key across all tables (instead of a primary key being unique for a given table, it is unique for all tables)? If so, is it objectively better than using a single primary key sequence across tables.

I'm a junior software developer, not a DBA, so I am still learning many of the basics of good database design.

Edit: In case anyone is wondering, I recently read a critique of a database design by one of our company's DBAs who mentioned it was a problem that the design didn't use a single primary key across the entire database, which sounded different than what I've learned so far.

Is it an acceptable practice to use a single sequence as a primary key across all tables (instead of a primary key being unique for a given table, it is unique for all tables)? If so, is it objectively better than using a single primary key sequence across tables.

I'm a junior software developer, not a DBA, so I am still learning many of the basics of good database design.

Edit: In case anyone is wondering, I recently read a critique of a database design by one of our company's DBAs who mentioned it was a problem that the design didn't use a single primary key across the entire database, which sounded different than what I've learned so far.

Edit2: To answer a question in the comments, this is for Oracle 11g, but I was wondering on a non-database specific level. If this question does depend upon the database, I would be interested to know why, but in such a case I would be looking for an answer specific to Oracle.

Is it an acceptable practice to use a single sequence as a primary key across all tables (instead of a primary key being unique for a given table, it is unique for all tables)? If so, is it objectively better than using a single primary key sequence across tables.

I'm a junior software developer, not a DBA, so I am still learning many of the basics of good database design.

Is it an acceptable practice to use a single sequence as a primary key across all tables (instead of a primary key being unique for a given table, it is unique for all tables)? If so, is it objectively better than using a single primary key sequence across tables.

I'm a junior software developer, not a DBA, so I am still learning many of the basics of good database design.

Edit: In case anyone is wondering, I recently read a critique of a database design by one of our company's DBAs who mentioned it was a problem that the design didn't use a single primary key across the entire database, which sounded different than what I've learned so far.