State True/False
1. | In 1980 Dr. E. F. Codd was working with Oracle Corporation. |
2. | DB2, System R, and ORACLE are examples of relational DBMS. |
3. | In the RDBMS terminology, a table is called a relation. |
4. | The relational model is based on the core concept of relation. |
5. | Cardinality of a table means the number of columns in the table. |
6. | In the RDBMS terminology, an attributes means a column or a field. |
7. | A domain is a set of atomic values. |
8. | Data values are assumed to be atomic, which means that they have no internal structure as far as the model is concerned. |
9. | A table cannot have more than one attribute, which can uniquely identify the rows. |
10. | A candidate key is an attribute that can uniquely identify a row in a table. |
11. | A table can have only one ... |
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