The relational database model was originally proposed by: 

Columns used for joining tables in SQL statements can have either the same or different names

SELECT, PROJECT, and RENAME are binary relational operations.

A row is SQL is equivalent to a relational model’s:

Which one of these SQL statements is correct and will execute?

Majority of modern DBMS today automatically create indexing on PK field

Which normal form adds the requirement that every non-key attribute must be fully dependent on the key?

A relation in BCNF is always in 4NF and 5 NF.

A table is in Boyce Codd Normal Form when if at least one determinant is a candidate key.

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