Relational Database Management System Mcqs

Page No. 11

What does the following statement do? create table temp_inst like institute


aIt creates a new relation temp_inst with all the tuples and attributes of the institute relation

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bIt creates a new relation temp_inst with the same schema as that of the institute relation

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c It creates a new relation named temp_inst with institute as its only attribute

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dIt does not create any relations and returns an error

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State true or false: Users can define new data types in SQL


aTrue

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bFalse

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ceither true and false

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dnone of the mentioned

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View Answer True

Which of the following is an illegal data type in SQL


anumber

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bclob

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cblob

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d lint

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View Answer lint

What is a default value?


aIt is a value that automatically creates a primary key

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b It is a value that cannot be altered during insertion of values in the tuple

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cIt is a value that is initially loaded into the attribute

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dNone of the mentioned

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What does p indicate in the following data type? time(p)


aThe amount of delay that needs to be added to the time

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bThe number of fractional digits for the seconds

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cThe maximum number of allowed hours

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dNone of the mentioned

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What is a timestamp?


a A combination of date and time with date first

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bA combination of date and time with time first

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cA combination of time and place with time first

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d A combination of time and place with place first

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Which of the following is not a valid Date and Time data type?


adate

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btime

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cdatestamp

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d timestamp

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View Answer datestamp

Which package comprises of the core JDBC API?


ajava.sql

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bjava.database

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csql.java

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djava.relation

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View Answer java.sql

Which JDBC Driver is the most efficient of all the JDBC drivers?


aType 1 Driver

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bType 2 Driver

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cType 3 Driver

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dType 4 Driver

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View Answer Type 4 Driver

How many different types of drivers are present in JDBC?


a1

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b2

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c3

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d4

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View Answer 4

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