This set of Database Interview Questions and Answers for freshers focuses on ” Querying database part – 3″.
1. _______________ joins are SQL server default
a) Outer
b) Inner
c) Equi
d) None of the Mentioned
View Answer
Explanation: Inner query joins only the rows that are matching.
2. The ________________ is essentially used to search for patterns in target string.
a) Like Predicate
b) Null Predicate
c) In Predicate
d) Out Predicate
View Answer
Explanation: Like matches the pattern with the query.
3. Which of the following is/are the Database server functions?
i) Data management ii) Transaction management
iii) Compile queries iv) Query optimization
a) i, ii, and iv only
b) i, ii and iii only
c) ii, iii and iv only
d) All i, ii, iii, and iv
View Answer
Explanation: All these are functions of database.
4. To delete a database ___________ command is used
a) Delete database database_name
b) Delete database_name
c) drop database database_name
d) drop database_name
View Answer
Explanation: This will delete the database with its structure.
5. ____________ is a combination of two of more attributes used as a primary key
a) Composite Key
b) Alternate Key
c) Candidate Key
d) Foreign Key
View Answer
Explanation: Primary keys together form the composite key.
6. Which of the following is not the function of client?
a) Compile queries
b) Query optimization
c) Receive queries
d) Result formatting and presentation
View Answer
Explanation: Query optimization is used to improve the quality.
7. ____________ is a special type of stored procedure that is automatically invoked whenever the data in the table is modified.
a) Procedure
b) Trigger
c) Curser
d) None of the Mentioned
View Answer
Explanation: Triggers are used to initiate a action to take place.
8. ______________ requires that data should be made available to only authorized users.
a) Data integrity
b) Privacy
c) Security
d) None of the Mentioned
View Answer
Explanation: Some algorithms may be used for the security.
9. Some of the utilities of DBMS are _____________
i) Loading ii) Backup iii) File organization iv) Process Organization
a) i, ii, and iv only
b) i, ii and iii only
c) ii, iii and iv only
d) All i, ii, iii, and iv
View Answer
Explanation: Processing is not the a utility in dbms.
10. ____________ allows individual row operation to be performed on a given result set or on the generated by a selected by a selected statement.
a) Procedure
b) Trigger
c) Curser
d) None of the Mentioned
View Answer
Explanation: Triggers are used to initiate a action to take place.
Sanfoundry Global Education & Learning Series – Database Management System.
