MCQS Database Systems- for admission in software engineering – Set 9

MCQS Database Systems- for admission in software engineering – Set 9

Multiple Choice Questions

Set 9

 

• Which key is used to relate two different table

1. Primary key
2. Foreign key
3. Candidate key
4. Both 1 and 2
   Answer - Click Here:

   2

• Which type of specific word are used to enter the data in table___

1. Insert into table name
2. Save into table name
3. Enter into table name
4. Type into table name
   Answer - Click Here:

   1

• Which is best to make primary key from the following

1. Roll-no
2. Phone number
3. name
4. both 1 and 2
   Answer - Click Here:

   4

• Which is not a function in SQL______

1. MIN
2. COUNT
3. SUM
4. A= R² 
   Answer - Click Here:

   4

• Which is not allowed in an efficient DBMS______

1. Duplicate row
2. Duplicate column
3. Duplicate data
4. All 1,2 and 3
   Answer - Click Here:

   4

• An­__________can be used to automatically fill in certain field values for a new record.

1. Autolook up query
2. Select query    
3. 3.update query
   Answer - Click Here:

   1

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