>SQL is a practical application of relational bags.
Apart from the fact it isn't; elements have specific order and that order matters.
SQL is SQL, it's not relational algebra or whatever bastardization of it you can think up. In fact when it comes to SQL the only use relational algebra has is to tell you that anyone talking about it has never used SQL.
Apart from the fact it isn't; elements have specific order and that order matters.
SQL is SQL, it's not relational algebra or whatever bastardization of it you can think up. In fact when it comes to SQL the only use relational algebra has is to tell you that anyone talking about it has never used SQL.