In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect :
Answer: C
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The concept of mapping of ______ entity types is the concept in which the for each strong entity type E in the ER schema, create a relation R that includes all the simple attributes of E
Answer: A
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Manager salary details are hidden from the employee .This is
Answer: A
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Cascading rollback is avoided in all protocol except
Answer: D
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In an E-R diagram double lines indicate
Answer: A
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The _______ is a set of programs to use and / or modify this data.
Answer: A
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A list consists of last names, first names, addresses and pin codes. If all people in the list have the same last name and same pin code a useful key would be
Answer: C
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A ______ module is typically designed so that it will run on a user workstation or personal computer.
Answer: D
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Use of UNIQUE while defining an attribute of a table in SQL means that the attribute values are
Answer: C
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The one guideline to be followed while designing the database is
Answer: B
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