71. | A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields. |
Discuss |
Answer: (c).Relational
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72. | A compound key |
Discuss |
Answer: (c).both (a) and (b)
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73. | If a piece of data is stored in two places in the database, then |
Discuss |
Answer: (d).both (a) and (b)
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74. | A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As |
Discuss |
Answer: (d).both (a) and (b)
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75. | When the primary key is null of the new tuple then the constraint violated is |
Discuss |
Answer: (d).entity integrity constraint
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76. | In formal relational model, the set of indivisible values is called |
Discuss |
Answer: (b).domain
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77. | In relational model terminology, the table is considered as |
Discuss |
Answer: (c).relation
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78. | The key which specifies that two different tuples cannot have the same value is classified as |
Discuss |
Answer: (a).super key
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79. | The format or data type must be specified for |
Discuss |
Answer: (d).domain
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80. | In a relation schema, each key of schema having more than one key is classified as |
Discuss |
Answer: (a).candidate key
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