Datalake can contain unstructured, semistructured, and structured all kinds of data. purpose of datalake is to store raw data for various downstream teams. Whereas Data warehouse is for structured data only. It is a read-heavy system for analytical needs. ETL: is used where source data is not bulky and transformation logic is clear for a specific purpose, Only the transformed data needs to be loaded in the target system, enhanced security etc. ELT: is used where a huge volume of data is being processed, and multiple transformation logics will be applied to the raw data by multiple teams, in case of real-time analytics etc. Many to many relationships can be handled by introducing a bridge table between the tables. The bridge table will have 1:M relationship with the other tables.
@sohammajumder4379
Жыл бұрын
not completely agree with the first difference you explained for ETL vs ELT, both can be used to load data warehouse or data lake, however, the decision on which one should be used is based upon the infrastructure requirement, in ELT you can leverage the power of your target data base for load as well as transformation but in case of ETL you must provision a third server/ compute machine only for the transformation purpose. Happy to read if you have any other view on it..!!
@sandyjust
7 ай бұрын
I agree with you.
@Sheikh_Nazimuddin
Ай бұрын
correct
@mounikadontha
2 ай бұрын
Your explanation was so easy to understand like a friend explaining before exam!!!! Please make more videos.. Thank youuuuuu!!
@josephcarlodavid4355
6 ай бұрын
Great example and shared insights! Very helpful!
@andreasahrlund-richter2289
5 ай бұрын
Thank you for the nice short summary and your insights Pritha.
@rameshv4990
3 күн бұрын
@DatingData by Pritha Hey, why you have stopped making these videos? you are really good at these technical videos and Videos are knowledgeable. I suggest you to continue to make such videos frequently. fyi, i searched to DM you , no where to find , so i am communicating to you here
@HarshKumar-pw6kg
5 ай бұрын
Please put more videos like this, it is very helpful for student like us. Thanks :)
@saikumargudelli
5 ай бұрын
You are a good tutor and a request, why don't you post some tutorials on data modelling that would be helpful. Thank you for this video it is very helpful.
@chpavankumar8040
4 ай бұрын
bane extralu ,,,,,,,
@rupaghosh6251
Ай бұрын
Nice explanation
@A4Abhinav
3 ай бұрын
Good one ❤
@chetanakarte6449
10 ай бұрын
Could you please explain in detail, how to resolve many to many relationships? (I didn't get in this vodeo)
@Ram_jagat
5 ай бұрын
We solve many to many relationships by creating a bridge/ linked table which act as intermediate table between other tables.
@prithachakraborty6023
3 ай бұрын
Sure. Will explain in my next tutorial.
@chetankakkireni8870
9 ай бұрын
I can see explanations of 2 questions( i.e., Data Warehouse vs Data Lake and ELT VS ETL) , what is the 3rd data modeling question ?
@roymou5856
4 ай бұрын
very helpful, thanks a lot
@user-gf1wz4ty1t
5 ай бұрын
very nice
@user-ep3qz2jx5h
11 ай бұрын
very good explanation
@AnuragSingh-uq1br
10 ай бұрын
I love your gestures
@user-dx2dg4bd7q
Жыл бұрын
Could you please explain the differences between different data models(Inmon,Kimball,3NF,Dimension Modelling,Data Vault).
@prithachakraborty6023
3 ай бұрын
Sure. In my next tutorial.
@subhadeepbanerjee3723
Жыл бұрын
Really helpful!
@musadiqhussain7840
6 ай бұрын
Can you please tell about the reverse engineering for XML or Oracle DB?
@theWebNet
6 ай бұрын
Can you please post more videos on data modeling. Thanks
@murchhanabanerjee862
5 ай бұрын
Awesome video পৃথা দি, প্লীজ ডেটা মডেল এর আরো use case video বানান
@shrikantjoshi3174
5 ай бұрын
Nicely explained. Thank you. Please keep it up!
@petebell271
2 ай бұрын
"basically" became Data Redundant .... try to use less.....
@surajagasti2309
4 ай бұрын
Haeyy
@ankitsrivastava6756
Ай бұрын
Nivea body lotion 🧴
@A4Abhinav
3 ай бұрын
How to connect with you?
@prithachakraborty6023
3 ай бұрын
Mail me at tina.pritha@gmail.com. I will share my number over mail.
@SujeethMaroli--BOSCH
3 ай бұрын
no clear explanation. She might be fresher.
@prithachakraborty6023
3 ай бұрын
Well a Googler and professional data modelling trainer at Please check my linked page for my experiences. It will be really good if you post your questions and ask what exactly you are looking for.
@arpitkapoor2271
2 ай бұрын
I don’t feel that explanation was not clear TBH. But ma’am don’t you think that these questions are very simple? Is this truly the level of interviews?
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