CS403 GDB no 1 Discussion and solution

[Aquarius (Awan)]

Question:

 Suppose we have a table “Employee” having column “age” in it. The table “employee” might have a data of different age groups according to their designations. The employee at high levels of post like Project Manager, Managing director etc has different age group when we are comparing it with other junior or senior level employees.

 

You have studied various indexing techniques for random access and better organization of data. By having a context of above scenario; if you have given an option to choose one indexing technique from two below indexes, which you would like to choose that will help to get optimized results? 

 

§         Clustered index

§         Un-clustered/Non-clustered index

 

You have to choose only one technique out of the two and give valid reasons to support your answer.

Note: Try to provide precise, to the point answer and avoid irrelevant details.

[+ M.Tariq Malik]

Please Discuss here about this GDB.Thanks

Our main purpose here discussion not just Solution

We are here with you hands in hands to facilitate your learning and do not appreciate the idea of copying or replicating solutions.

[Aquarius (Awan)]

ustered Index

• Only one per table
• Faster to read than non clustered as data is physically stored in index order

Non Clustered Index

• Can be used many times per table
• Quicker for insert and update operations than a clustered index

Both types of index will improve performance when select data with fields that use the index but will slow down update and insert operations.

[Aquarius (Awan)]

Alhmdulilah Done my GDB 

[+ Sabila Khan]

but bro sir ny kaha hy k 1 choose krna hy out of 2 types. apny 2no he choose ki hn.... ??? (Y)?

[maryam sadiqah]

A.A plz hlp me the gdb of cs403 ful solution plzzzzzzzzzzz

[Aquarius (Awan)]

Vu walo ny cs403 k is GDB ma trick use kiya hai k  hr koi aik index choose kray jo k glt hai sahe main solution ya hai k both indexes are best.or jo ya smjta hai waky aik index choose hoga sirf to usay relational database ka koi knowledge ni hai!

exact solution is both indexes are best 

sb sy bra hint ma ny dy diya ap logo ko ab phr b ni ap logo sy hoga to ap bht gnday bchay hain hahha

Hope it helps

vu walo hd hogyii  bcho ko phnsa rhy hoo confuse kr ry hoo!

[Meeral Mcs (ex std)]

thnx for sharing

[Aquarius (Awan)]

anytime afterall its my last post here bcz its my last smester

[Muhammad Azmat]

pa ge tussi chay gay ooooooo

[Rayaa]

ab wo hint kia he ye b bata den plzzzzzzzzzzz

[+ M.Tariq Malik]

Clustered Index

• Only one per table
• Faster to read than non clustered as data is physically stored in index order

Non Clustered Index

• Can be used many times per table
• Quicker for insert and update operations than a clustered index

Both types of index will improve performance when select data with fields that use the index but will slow down update and insert operations.

[+ M.Tariq Malik]

Cluster index sorts the data with respect to the column on which it is applied, where as non-clustered index do not, it is just a logical sorting. Thus we can have only single clustered index and multiple non-clustered index on a table. Primary index on a table is clustered index. By default CREATE INDEX statement creates a non-clustered index