Question: T/F. please answer 6,7,9,10 6. The first paper on the relational database model was published in 1980. 7. In a one-to-many relationship, the foreign key

T/F. please answer 6,7,9,10 T/F. please answer 6,7,9,10 6. The first paper on

6. The first paper on the relational database model was published in 1980. 7. In a one-to-many relationship, the foreign key is added to the parent entity. 8. Normalization usually increases the number of tables (relations) in a relational database. 9. The result of every relational algebra operation is another table. 10. A project operation can produce a table with duplicate columns

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