The database administrator who authorizes all the new users, modifies the database and takes grants privilege is
Operator of operating system
Administrator
Super user
All of the mentioned
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1
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Which of the following is true regarding views?
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2
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To remove a relation from an SQL database, we use the ______ command.
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3
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In the authorization graph, if DBA provides authorization to u1 which in turn gives to u2 which of the following is correct?
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4
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Which of the following is used to avoid cascading of authorizations from the user?
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5
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The basic datatype char (n) is a _______ length character string and varchar (n) is _______ length character.
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6
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What type of statement is this?
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7
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Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database?
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8
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An attribute A of datatype varchar(20) has the value “Avi”. The attribute B of datatype char(20) has value ”Reed”. Here attribute A has ____ spaces and attribute B has ____ spaces.
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9
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Updates that violate __________ are disallowed.
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10
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Which of the following is used to provide privilege to only a particular attribute?
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