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?
DML(Data Manipulation Langauge)
DDL(Data Definition Langauge)
Query
Relational Schema
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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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2
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This command performs which of the following action?
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3
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Which one of the following is used to define the structure of the relation, deleting relations and relating schemas?
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4
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Which of the following is used to provide privilege to only a particular attribute?
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5
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Which of the following is true regarding views?
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6
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Which of the following statement is used to remove the privilege from the user Amir?
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7
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To remove a relation from an SQL database, we use the ______ command.
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8
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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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9
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Which of the following is used to avoid cascading of authorizations from the user?
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10
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If we wish to grant a privilege and to allow the recipient to pass the privilege on to other users, we append the __________ clause to the appropriate grant command.
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