Which Database Model to Choose?

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✏️📘 Summary Notes: 1levelup.dev/blog/consistent-...
Key-Value 🐇
1:04 - Flexible for Unstructured Data
1:22 - Fast Lookup
1:53 - In-Memory Database
3:59 - Not for Complex Data Structures
4:21 - Not for ACID transactions
4:53 - Not for Historical Data
5:13 - Caching
Wide-column 🎡
6:16 - Column layout
6:57 - Primary Keys
7:52 - Denormalized
8:40 - Not for Random Filtering and Rich queries
9:51 - Not for Transaction Processing
10:39 - High scalability
11:52 - Optimized for Writes
Document 📑
12:32 - Denormalized
13:47 - Handle Unstructured Data
14:23 - Indexing and Rich Query
15:03 - Not for Complex joins and relationships
16:01 - Not for Referential integrity
16:20 - Most intuitive
Relational 👑
17:02 - Mature and formalized datamodel
17:47 - Normalization
18:44 - Difficult to scale horizontally
19:26 - ACID
Graph 🍇
20:51 - No need to compute the relationships at query time
21:49 - Handles Complex Data Structures
22:20 - Difficult to scale
22:51 - Not for Write-heavy workloads
23:47 - Multi-hop relationships

[@mousely76]

17:42 i love that sql injection in the 3rd id

[@paramjitsaha330]

Choosing the Right Database: Understanding Different Data Models and their Pros and Cons
[00:02]Choosing the right database model is crucial for app performance and scalability.
[02:35] Key-value databases are well-suited for in-memory storage, providing faster responses
[05:17] Key value stores are optimized for high performance and low latency applications.
[07:56] White columns databases store data in a normalized form
[10:22] Cassandra databases offer horizontal scalability and fast writes.
[12:48] Document databases, like MongoDB, provide a more convenient way to handle data.
[15:24] Document databases offer scalability and easier integration with object-oriented programming, but lack features and integrity
[17:53] Normalization is the process of organizing data into separate tables to improve data integrity.
[20:07] Different database models have different challenges in complying with all acid properties.
[22:16] Graph databases are difficult to model and distribute across multiple nodes.

[@ozzyfromspace]

You're amazing bro, thank you so much for making these videos! I'm preparing for a senior engineering interview and haven't been feeling very confident about it. Your videos are really helping me build a framework for understanding things at a more high level. I appreciate your effort. Thanks again!

[@rhodabaruch4]

That was amazing. Thank for you helping me in my prep. This should have way more views. That was the perfect level of detail and the diagrams and animations help solidify the detail you provide. Bravo!

[@emilyedgars7072]

Best video!! Explained everything I learned in 4 months in 24 mins

[@VinChit]

Thanks for creating such intuitive tutorials on different databases. Kudos to your efforts.

[@saswatsenapati7870]

6:17 - wide column database

[@Kimanxo]

we demand to provide a similar video about backend frameworks and languages such as Django Next Express Rails Laravel ....

[@gigaheheboi]

Very Informative.. This Video was Easy to understand!

[@habibyama]

Thank you for such intuitive video.

[@jitx2797]

Wow this is quality content. Subscribed

[@ShantanuSingh-wc4ou]

I have no words. To be honest, I am feeling bad for watching this in free of cost as a student. Thank you for your hard work, I will share this video as much as possible.

[@firefly3519]

Very helpful - thank you!

[@Delicatamente]

Best ever. This is so excellently structured and summarize. thank you agaiN!

[@user-lp3wb5su7c]

this is really useful video, thank you

[@MAK_007]

You are awesome. Such a great video ❤

[@user-oz6bg3eb6n]

your videos are just soooo nice. cngrts

[@ravindranaths513]

Could you please make a video on Wide column vs column family vs columnar vs column oriented DBs

[@rmscoal_dev]

Hello, I love this video. Perhaps a little feedback. On every of my device, your video audio is so soft. I think it would be nice, if the audio is a bit larger so that I can hear better. Thank you very much.

[@paakwasioppong9371]

Awesome video.

[@maxonaga3962]

YOU ARE MY HERO

[@meditationdanny701]

Good
To see you back bro t

[@antisteo]

you forgot to mention columnar databases for high performance analytics

[@karpuzye]

the content is good but following the topics is not easy because the selection of titles appearing for 1 second and then we're not seeing the title anymore while explainging it.

[@datapragmatic]

The links in the description don't work

[@lokeshmehta9591]

bro please increase sound level.

[@Jody-nf2bz]

He keeps stopping every one or two words, so in order to keep up I had to mute the video and read the closed captions instead.