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today's paper was very tough....only few mcqs were from past papers, 3 or 4 i guess, and not a single Subjective question was from past. and 3 short questions were about 1NF and 2NF. Questions lengthy the is liye note nahi kiye. prepare well.....and pray for all.

CS403 Database Management System. Current Papers. 2013
_________________________________________________

CS403 Database Management System
Current paper 25 May 2013
Total MCQS 20 – 1 Mark
Short Question 2 of 2 Marks
Short Question3 of 2 Marks
Short Question 5 of 2 Marks
1- What is extension and intension
2- What is query evaluation engine
3- How many resultant tables we have, while implementing one-to-one relationship in designing database?
4- What is degree of a relation?
5- Difference between null value and zero value.
6- How does Tuple-oriented relational calculus differ from domain-oriented relational calculus?
My today cs403 paper.

50% mcqs were from past papers.

Difference between relation and relationship. 2 marks

Define degree of a relation. 2 marks

Explain difference operation (A-B) between two relations. 3 marks

Anomalies se rewlated tha ek question 3 number ka.

1 relation di gie thi jo k 1st normal form mai thi, usy 2nd normal form me convert krna tha. 5 marks

or ek question ki mujhy khud samjh nhi lagi or wo mery zehan mai b nahi he.

Remember me in your prayers.

Write Two type of Anomalies?

Write the main Function of Subtype Discriminator?

ik scenrio diya tha us mai sy Entities dhond k mention karni thi

ik mai Diagram thi jis mai Entitiy Student aur us k Attributes {ID, Skill, Name, Fathers Name, Address} thay in mai sy hum ny best candidate for multivalue attribute btana tha

ik mai Student X aur us k attributes diyay thay aur us ki dependencies btana tha k ye BOYCE law mention krti han k nhi aur ye attributes sb candidates key han k nhi Yes OR No mai answer dena tha

ik mai 2 table Customer ka aur Invoice ka diya hua tha jis sy hum ny Resultant Table A nikalna tha Through Realtional somthing formula diya tha k Customer X(EquiJoin)Invoice and EquiJoin = Customer.Customer ID

4 types of anomalies: page 170

Redundancy

insertion anomaly

deletion anomaly

updation anomaly

Subtype discriminator:

This is tool or technique which provides us a methodology to determine that to which suctype one instance of a subtype belongs.

to determine the relation we place an attribute in the entity supertype which can specify through its value, that to which entity subtype it belongs. page 108

today paper

1)      Diagram di hoi thi us ko analyze karna tha or foreign key batani thi. 2

2)      Describe the insertion and difference operation    2

3)      2 table tha us ma foreign key batai hoi thi or ya batana tha ka ya default ha ya domain ha 3

4)      2 Table tha us ka resultant find karna tha or ya batana tha ka X U Y = Y U X (yes/no) 5

plz read all handouts if u want to get good marks. Today is my paper. only one question from moaaz file. baki sub conceptual thay. kisi main diagram bana thi. mcq were  all mew 

Thanks all of you for sharing your papers 

Today’s my paper of DBMS:

SHORT QUESTIONS:

 

1- One to one mapping procedure? (2MARKS)

2- draw an ER diagram of given scenario (5marks)

3-If we have:

 

STUDENT A:

Student-ID

Student-NAME

Student-SMETERS

1

ABC

1

2

DEF

2

3

EJK

1

4

LMN

1

5

OPQ

2

6

RST

3

 

STUDENT B:

Student-ID

Student-NAME

Student-SMESTERS

4

ABC

1

6

RST

3

7

UTW

2

8

XYZ

3

 

Use difference operator(student A- student B)

4- Cartesian products YxZ, and ZxY  (5 MARKS)

Y: (Ali ,Imran)                                                 

Z: (Bcs, MCS)

 

5:ER Diagram bnani thi 3 marks me.

 

6: Constraints select krny thy scenario me se lectr 11 me se question tha (2marks)

Angel Heart thanks for sharing ur paper ..keep it up 

Attention Related Mid Term papers Spring 2013: All Fellows You don’t need to go any other site for current Mid Term papers Spring  2013, Because All discussed data/sharing of our members in this discussion are going from here to other sites. You can judge this at other sites yourself. So don’t waste your precious time with different links.

My today paper is:

Mcqs are mixed new and old both.

1. Difference b/w relation and relationship. (2)

2. Is order of columns significant for ERD? Justify it (2)

3. Convert the relation in 1st NF and relation is given. (3)

4. A relation was given ad ask to find carnality and domain(3)

5. Apply Union on relations and relation are given?? And in 2nd part: is XUY=YUX. (5)

6. Scenario was given and find the entities only. (5)

best of luck remember e in your prayers.

 Afifa(MIT.2nd) thanks 

Attention Related Mid Term papers Spring 2013: All Fellows You don’t need to go any other site for current Mid Term papers Spring  2013, Because All discussed data/sharing of our members in this discussion are going from here to other sites. You can judge this at other sites yourself. So don’t waste your precious time with different links.

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