Faculty of Diploma Studies – 695

Faculty of Diploma Studies Department of Computer Engineering

ADBMS MCQ

1. DCL stands for

a) Data Control Language

b) Data Console Language

c) Data Console Level

d) Data Control Level

2. TCL stands for:

a) Transaction control languages

b) Transaction command languages

c) Transaction connect languages

d) None of the Mentioned

3. _________commands in SQL allow controlling access to data within

database.

a) Database

b) Data

c) Data control

d) All of the Mentioned

4. In an SQL statement, which of the following parts states the conditions

for row selection?

a) Where

b) From

c) Order By

d) Group By

Faculty of Diploma Studies – 695Department of Computer Engineering –

ADBMS MCQ Questions Bank

Data Control Language

b) Data Console Language

c) Data Console Level

d) Data Control Level

a) Transaction control languages

b) Transaction command languages

c) Transaction connect languages



c) Data control

d) All of the Mentioned


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ADBMS MCQ

5. A transaction completes its execution is said to be

a) Committed

b) Aborted

c) Rolled back

d) Failed

6. Which of the following keyword is used with Data Control Language

(DCL) statements?

a) SELECT

b) INSERT

c) DELETE

d) GRANT

7. To obtain the structure of an Oracle table, the command to use is:

a) STRUCTURE [TableName].

b) DESCRIBE [TableName].

c) DESCRIBE STRUCTURE [TableName].

d) DESC TABLE [TableName]

8.If a transaction has obtained a __________ lock, it can read but cannot write

on the item

a) Shared mode

b) Exclusive mode

c) Read only mode

d) Write only mode

9. 2. If a transaction has obtained a ________ lock, it can both read and write

on the item

a) Shared mode

b) Exclusive mode

c) Read only mode



5. A transaction completes its execution is said to be


obtain the structure of an Oracle table, the command to use is:

a) STRUCTURE [TableName].

b) DESCRIBE [TableName].

c) DESCRIBE STRUCTURE [TableName].

d) DESC TABLE [TableName]


2. If a transaction has obtained a ________ lock, it can both read and write

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obtain the structure of an Oracle table, the command to use is:


2. If a transaction has obtained a ________ lock, it can both read and write


ADBMS MCQ

d) Write only mode

10. The situation where no transaction can proceed with normal

execution is known as ________

a) Road block

b) Deadlock

c) Execution halt

d) Abortion

11. The default data type for a sequence object is . . . . . . A) int B) bigint C) tinyint D) decimal

12. Sequence objects can be used as an optional way to generate unique

numeric values in a table. A) True B) False

13. Sequence numbers are generated outside the scope of transactions; they are . . . . . . . . . . . whether the transaction is committed or roback. A) not consumed B) consumed

14. Sequence objects are not part of any table definition. They can be used across multiple tables. A) True B) False

15. Below a table named P is created. Then a sequence is created. Values are inserted into the table using sequence.

CREATE TABLE P



situation where no transaction can proceed with normal

execution is known as ________

11. The default data type for a sequence object is . . . . . .

Sequence objects can be used as an optional way to generate unique numeric values in a table.

13. Sequence numbers are generated outside the scope of transactions; they are . . . . . . . . . . . whether the transaction is committed or ro

14. Sequence objects are not part of any table definition. They can be used across multiple tables.

15. Below a table named P is created. Then a sequence is created. Values table using sequence.

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situation where no transaction can proceed with normal

Sequence objects can be used as an optional way to generate unique

13. Sequence numbers are generated outside the scope of transactions; they are . . . . . . . . . . . whether the transaction is committed or rolled

14. Sequence objects are not part of any table definition. They can be used

15. Below a table named P is created. Then a sequence is created. Values


ADBMS MCQ

( ID int, Name varchar(255) ); CREATE SEQUENCE MySequenceAS Integer Start with 0 Increment by 1 Insert into P values (NEXT VALUE for MySequence, 'AA');Insert into P values (NEXT VALUE for MySequence, 'BB');Insert into P values (NEXT VALUE for MySequence, 'CC'); Insert into P values (NEXT VALUE for MySequence, 'AA');Insert into P values (NEXT VALUE for MySequence, 'BB');Insert into P values (NEXT VALUE for MySequence, 'CC');Select*from P; What will be the

A)

ID Name

0 AA

1 BB

2 CC

0 AA

1 BB

2 CC B)

ID Name

0 AA

1 BB

2 CC

1 AA

2 BB

3 CC



CREATE SEQUENCE MySequence

Insert into P values (NEXT VALUE for MySequence, 'AA'); Insert into P values (NEXT VALUE for MySequence, 'BB');

into P values (NEXT VALUE for MySequence, 'CC');

Insert into P values (NEXT VALUE for MySequence, 'AA'); Insert into P values (NEXT VALUE for MySequence, 'BB'); Insert into P values (NEXT VALUE for MySequence, 'CC');

What will be the values in table P?

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ADBMS MCQ

C)

ID Name

0 AA

1 BB

2 CC

3 DD

4 EE

5 FF D)

ID Name

0 AA

1 BB

2 CC

3 AA

4 BB

5 CC

16. Sequence object can be restarted by A) NO CYCLE B) CONTROL SEQUENCEC) ALTER SEQUENCED) RESTART SEQUENCE

17. Apart from T-SQL, you can create and manage sequence objects using the Sequence folder located under the . . . . . . . . . . node for the database in SSMS.

A) Sequence B) Programability C) General D) Tools

18. The . . . . . . . clause specifies that the object should restart from the minimum value when its maximum value is exceeded.



16. Sequence object can be restarted by using . . . . . . . .

B) CONTROL SEQUENCE C) ALTER SEQUENCE D) RESTART SEQUENCE

SQL, you can create and manage sequence objects using the Sequence folder located under the . . . . . . . . . . node for the database in

18. The . . . . . . . clause specifies that the object should restart from the minimum value when its maximum value is exceeded.

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SQL, you can create and manage sequence objects using the Sequence folder located under the . . . . . . . . . . node for the database in

18. The . . . . . . . clause specifies that the object should restart from the


ADBMS MCQ

A) Restart B) MIN_MAX C) CYCLE D) None of above 19. A sequence object can be A) tinyint B) smallint C) bigint D) decimal E) numeric F) a, b, c, d G) All of above 20. Sequence gives you guarantee that you won't have gaps. A) True B) False

21. What is the purpose of index in sql serverA. To enhance the query performanceB. To provide an index to a recordC. To perform fast searchesD. All of the mentioned

22. How many types of indexes are there in sql server?a) 1 b) 2 c) 3 d) 4

23. Does index take space in the disk?a) It stores memory as and when requiredb) Yes, Indexes are stored on diskc) Indexes are never stored on diskd) Indexes take no space 24. What are composite indexes?



19. A sequence object can be of the following data types . . . . .

20. Sequence gives you guarantee that you won't have gaps.

What is the purpose of index in sql server To enhance the query performance To provide an index to a record To perform fast searches

mentioned

2. How many types of indexes are there in sql server?

. Does index take space in the disk? a) It stores memory as and when required b) Yes, Indexes are stored on disk c) Indexes are never stored on disk

. What are composite indexes?

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ADBMS MCQ

a) Are those which are composed by database for its internal

use

b) A composite index is a combination of index on 2 or

more columns

c) Composite index can never be created

d) None of the mentioned

25. If an index is _________________ the metadata and statistics continue

to exists

a) Disabling

b) Dropping

c) Altering

d) Both Disabling and Dropping

26. What is a view?

a) A view is a special stored procedure executed when certain event occurs

b) A view is a virtual table which results of executing a pre

query

c) A view is a database diagram


27.Which of the following is not a limitation of view?

a) ORDER BY Does Not Work

b) Index Created on View Used Often

c) Cross Database Queries No

d) Adding Column is Expensive by Joining Table Outside View





more columns

c) Composite index can never be created


_________________ the metadata and statistics continue

d) Both Disabling and Dropping


table which results of executing a pre-compiled

c) A view is a database diagram

27.Which of the following is not a limitation of view?

a) ORDER BY Does Not Work

b) Index Created on View Used Often

c) Cross Database Queries Not Allowed in Indexed View

d) Adding Column is Expensive by Joining Table Outside View

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_________________ the metadata and statistics continue


compiled


ADBMS MCQ

28. Syntax for creating views is __________

a) CREATE VIEW AS SELECT

b) CREATE VIEW AS UPDATE

c) DROP VIEW AS SELECT

d) CREATE VIEW AS UPDATE

29,You can delete a view with ___________ command.

a) DROP VIEW

b) DELETE VIEW

c) REMOVE VIEW

d) TRUNCATE VIEW

30. ___________ is stored only in the Master database.

a) Database-scoped Dynamic Management View

b) Complex View

c) Catalog View


31 - Which of the following is not a PL/SQL unit?

A - Table

B - Type

C - Trigger

D - Package



28. Syntax for creating views is __________

a) CREATE VIEW AS SELECT

b) CREATE VIEW AS UPDATE

d) CREATE VIEW AS UPDATE

with ___________ command.

___________ is stored only in the Master database.

scoped Dynamic Management View


the following is not a PL/SQL unit?

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ADBMS MCQ

32. Out of the below data types which can be used for Date & time type?

a) Date

b) Datetimeoffset

c) Time

d) All

33. What is the ISO synonym for ntext data type?

a) New text

b) Next text

c) National Text

d) None of the above

34. Which data type is used to store binary data up to the limit of

2,147,483,647?

a) Image

b) Text

c) Ntext


35. Which data type can be used to represent position in a hierarchy?

a. Hierarchy

b. Hierarchyid

c. Nhierarchyid

d. None of the above

36. What is the storage size of smallmoney data type?

a) 3 bytes

b) 2 bytes

c) 4 bytes

d) 8 bytes

37. What is the range of TinyInt data type in SQL Server?

a) 0-10




33. What is the ISO synonym for ntext data type?



e of smallmoney data type?

What is the range of TinyInt data type in SQL Server?

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ADBMS MCQ

b) 0-255

c) -2^15 to 2^15-1


38. Which data type in SQL server can

a) Timeonly

b) OnlyTime

c) Time

d) DateTime

39. What is the ISO synonym for real data type in SQL server?

a) Float(24)

b) Float(8)

c) Float(16)


40. What is the default size of n in a column which is defined as VARCHAR(n)? a) NULL b) 0 c) 1 d) None of the above 41. For which Exception, if a SELECT statement attempts to retrieve data based on its conditions, this exception is raised when no rows satisfy the SELECT criteria?

a. TOO_MANY_ROWS

b. NO_DATA_FOUND

c. VALUE_ERROR

d. DUP_VAL_ON_INDEX

42. In the SQL Cursor, which attribute is TRUE when a cursor has some remaining rows to fetch, and FALSE when a cursor has no rows left to



38. Which data type in SQL server can be used to store time in the table?

. What is the ISO synonym for real data type in SQL server?

default size of n in a column which is defined as

For which Exception, if a SELECT statement attempts to retrieve data based on its conditions, this exception is raised when no rows satisfy the SELECT criteria?

In the SQL Cursor, which attribute is TRUE when a cursor has some remaining rows to fetch, and FALSE when a cursor has no rows left to

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be used to store time in the table?

For which Exception, if a SELECT statement attempts to retrieve data based on its conditions, this exception is raised when no rows

In the SQL Cursor, which attribute is TRUE when a cursor has some remaining rows to fetch, and FALSE when a cursor has no rows left to


ADBMS MCQ

fetch? a. %ROWCOUNT

b. %FOUND

c. %NOTFOUND

d. %ISOPEN 43. To handle raised exceptions, you write separate routines called exception handlers.

a. Yes b. No

44. In PL/SQL, a warning or error condition is called an exception

a. True b. False

45. How many nested IF clauses can be included within an IF clause?a. 1 b. 0 c. 15 d. Any number

46. Which three of the following are implicit cursor attributes?

A. %found

B. %too_many_rows

C. %notfound

D. %rowcount

47. If left out, which of the following in a simple loop?

A. LOOP

B. END LOOP

C. IF-THEN

D. EXIT



To handle raised exceptions, you write separate routines called

In PL/SQL, a warning or error condition is called an exception

How many nested IF clauses can be included within an IF clause?

46. Which three of the following are implicit cursor attributes?

If left out, which of the following would cause an infinite loop to occur

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To handle raised exceptions, you write separate routines called

In PL/SQL, a warning or error condition is called an exception

How many nested IF clauses can be included within an IF clause?

would cause an infinite loop to occur


ADBMS MCQ

48. The command used to open a CURSOR FOR loop is

A. open

B. fetch

C. parse

D. None, cursor for loops handle cursor opening implicitly.

49. What happens when row

A. It causes the cursor to close

B. It causes the cursor to open

C. It loads the current row values into variables

D. It creates the variables to hold the current row values

50. Select invalid variable types

A. CHAR

B. VARCHAR1

C. VARCHAR2

D. INTEGER

51. List the correct sequence of commands to process a set of records when using explicit cursors

A. INITIALIZE, GET, CLOSE

B. CURSOR, GET, FETCH, CLOSE

C. OPEN, FETCH, CLOSE

D. CURSOR, FETCH, CLOSE

52. Where do you declare an explicit cursor in the PL/SQL language?

A. In the PL/SQL working storage section

B. In the PL/SQL declaration section

C. In the PL/SQL body section



The command used to open a CURSOR FOR loop is

D. None, cursor for loops handle cursor opening implicitly.

What happens when rows are found using a FETCH statement

A. It causes the cursor to close

B. It causes the cursor to open

C. It loads the current row values into variables

D. It creates the variables to hold the current row values

Select invalid variable types

List the correct sequence of commands to process a set of records when

A. INITIALIZE, GET, CLOSE

B. CURSOR, GET, FETCH, CLOSE

D. CURSOR, FETCH, CLOSE

an explicit cursor in the PL/SQL language?

A. In the PL/SQL working storage section

B. In the PL/SQL declaration section

C. In the PL/SQL body section

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s are found using a FETCH statement

List the correct sequence of commands to process a set of records when

an explicit cursor in the PL/SQL language?


ADBMS MCQ

D. In the PL/SQL exception section

53. which of the following is not an Oracle DML function?

A. DECODE

B. TRUNCATE

C. TO_CHAR

D. NVL

54. Select the invalid PL/SQL looping construct.

A. WHILE LOOP

...

END LOOP;

B. FOR rec IN some_cursor LOOP

...

END LOOP;

C. LOOP

...

UNTIL ;

END LOOP;

D. None of the above. All are valid.

55. Which listed attribute is an invalid attribute of an Explicit cursor.

A. %NOTFOUND

B. %FOUND

C. %ROWCOUNT

D. None of the above. All of these are v



D. In the PL/SQL exception section

hich of the following is not an Oracle DML function?

Select the invalid PL/SQL looping construct.

B. FOR rec IN some_cursor LOOP

D. None of the above. All are valid.

Which listed attribute is an invalid attribute of an Explicit cursor.

D. None of the above. All of these are valid.

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Which listed attribute is an invalid attribute of an Explicit cursor.


ADBMS MCQ

56.Which of the following is not a valid Oracle PL/SQL exception.

A. NO_DATA_FOUND ORA

B. TWO_MANY_ROWS ORA

C. DUP_VAL_ON_INDEX ORA

D. OTHERS

57. What are the components of a package?

A. Box, wrapping and binding

B. Header and body

C. Specification and content

D. Specification and body

58. PL/SQL subprograms, unlike anonymous blocks, are compiled each time they are executed. True or False?

a. True

b.False

59. If you don't specify a mode for a parameter, what is the de

a.OUT

b.IN

c.COPY

d.DEFAULT

60. Which kind of parameters cannot have a DEFAULT value?

a.OUT

b.IN

c.CONSTANT

d.R(ead)




A. NO_DATA_FOUND ORA-01403

B. TWO_MANY_ROWS ORA-01422

C. DUP_VAL_ON_INDEX ORA-00001

What are the components of a package?

A. Box, wrapping and binding

C. Specification and content

D. Specification and body

PL/SQL subprograms, unlike anonymous blocks, are compiled each time they are executed. True or False?

If you don't specify a mode for a parameter, what is the default mode?

Which kind of parameters cannot have a DEFAULT value?

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PL/SQL subprograms, unlike anonymous blocks, are compiled each

fault mode?


ADBMS MCQ

61. What are the three parameter modes for procedures?

a.IN, OUT, IN OUT

b.R(ead), W(rite), A(ppend)

c.CONSTANT, VARIABLE, DEFAULT

d.COPY, NOCOPY, REF

62. A stored procedure in SQL is a___________a) Block of functions b) Group of Transact-SQL statements compiled into a single execution plan. c) Group of distinct SQL statements.d) None of the mentioned

63. Temporary stored procedures are stored in _________ database.a) Master b) Model c) User specific d) Tempdb

64.A __________ is a special kind of a store procedure that executes in response to certain action on the table like insertion, deletion or updation of data. a) Procedures b) Triggers c) Functions d) None of the mentioned

65. Triggers are supported ina) Delete b) Update c) Views d) All of the mentioned

66. The CREATE TRIGGER statement is used to create the trigger. THE _____ clause specifies the table name on which t______ specifies that this is an AFTER INSERT trigger.a) for insert, on b) On, for insert c) For, insert d) None of the mentioned



What are the three parameter modes for procedures?

b.R(ead), W(rite), A(ppend)

DEFAULT

A stored procedure in SQL is a___________

SQL statements compiled into a single execution

c) Group of distinct SQL statements.

procedures are stored in _________ database.

64.A __________ is a special kind of a store procedure that executes in response to certain action on the table like insertion, deletion or updation

Triggers are supported in

66. The CREATE TRIGGER statement is used to create the trigger. THE _____ clause specifies the table name on which the trigger is to be attached. The ______ specifies that this is an AFTER INSERT trigger.

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SQL statements compiled into a single execution

procedures are stored in _________ database.

64.A __________ is a special kind of a store procedure that executes in response to certain action on the table like insertion, deletion or updation

66. The CREATE TRIGGER statement is used to create the trigger. THE _____ he trigger is to be attached. The


ADBMS MCQ

67. What are the after triggers?a) Triggers generated after a particular operationb) These triggers run after an insert, update or delete on a tablec) These triggers run after an insert, views, update or delete on a tabled) All of the mentioned

68. The variables in the triggers are declared usinga) – b) @ c) / d) /@

69. The default extension for an Oracle SQL*Plus file is:a) .txt b) .pls c) .ora d) .sql

70.Which of the following is NOT an Oraclea) BEFORE b) DURING c) AFTER d) INSTEAD OF

71. what are the different in triggers?a) Define, Create b) Drop, Comment c) Insert, Update, Delete d) All of the mentioned

72. Triggers ________ enabled or disableda) Can be b) Cannot be c) Ought to be d) Always

73. Trigger is special type of __________ procedure.a) Stored b) Function c) View d) Table



What are the after triggers? a) Triggers generated after a particular operation

These triggers run after an insert, update or delete on a tablec) These triggers run after an insert, views, update or delete on a table

The variables in the triggers are declared using

nsion for an Oracle SQL*Plus file is:

70.Which of the following is NOT an Oracle-supported trigger?

71. what are the different in triggers?

72. Triggers ________ enabled or disabled

Trigger is special type of __________ procedure.

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These triggers run after an insert, update or delete on a table c) These triggers run after an insert, views, update or delete on a table


ADBMS MCQ

74. Point out the correct statement.a) Triggers are database objectb) Three types of triggers are present in SQL Serverc) A DDL trigger is an action programmed to execute when a data manipulation language (DML) event occurs in the database serverd) None of the mentione

75. oint out the wrong statement.a) We can have an INSTEAD OF insert/update/delete trigger on a table that successfully executed b) DML Triggers are used to evaluate data after data manipulation using DML statements c) INSTEAD OF triggers cause their source DML od) AFTER triggers cause their source DML operation to skip



statement. a) Triggers are database object b) Three types of triggers are present in SQL Server c) A DDL trigger is an action programmed to execute when a data manipulation language (DML) event occurs in the database server

out the wrong statement. a) We can have an INSTEAD OF insert/update/delete trigger on a table that

b) DML Triggers are used to evaluate data after data manipulation using

c) INSTEAD OF triggers cause their source DML operation to skipd) AFTER triggers cause their source DML operation to skip

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c) A DDL trigger is an action programmed to execute when a data manipulation language (DML) event occurs in the database server

a) We can have an INSTEAD OF insert/update/delete trigger on a table that

b) DML Triggers are used to evaluate data after data manipulation using

peration to skip

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