Entity Relationship Diagrams

Entity Relationship Diagrams

Decomplexify

5 месяцев назад

66,358 Просмотров

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@AtraxaApologist
@AtraxaApologist - 13.04.2025 09:05

So, you can have an ERD that is everything besides the constraints and that's the only difference between it being an ERD and a Schema?
This seems like an unnecessary part in the process. But at least now I understand the difference between the two. Thank you.

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@XoxoSheikh
@XoxoSheikh - 12.04.2025 20:39

thanks for this video.

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@okan1808
@okan1808 - 07.04.2025 05:55

🙏🙏🙏

More, moreee, moreeeee 😄

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@abelmekonen73
@abelmekonen73 - 03.04.2025 02:58

Best video ever

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@legendarytwister3656
@legendarytwister3656 - 30.03.2025 11:44

This comment has a deep context in it and it's not inteded for the public, but instead, for one person only.

Тупаров,
За 3 лекции от по час и половина всеки не научих нищо. Тук всичко ми се избистри за 20 мин.
Ако виждаш това, моля те вземи мерки. Аз ако имах "проф." пред името не бих допуснал нещо подобно.
Вярно е, че на повечето студенти не им се занимава и може би се губи мотивацията за преподаване, разбирам, но я запази за онзи 1% където се среща навсякъде, а не само в нбу, и който го интересува това да успее в живота.

Дотук написаното се отнася за всички колеги! Работете съвестно, независимо от тия... минаващите 1 метър..

Не хейтя, боря се с хаоса на нашето време.
Благодаря. Бъди здрав. <3

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@mdellinkchillazo
@mdellinkchillazo - 27.03.2025 20:50

Man you are the best at explaining databases, hope you make more videos this year

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@rahuldwivedi4758
@rahuldwivedi4758 - 19.03.2025 19:42

I wish I could like this one thousand times. But sadly my relationship with the like button click is only 1 to 1.

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@fajaranggara8755
@fajaranggara8755 - 16.03.2025 06:51

So Great

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@noneya714
@noneya714 - 16.03.2025 02:53

please keep uploading🙏🏼🙏🏼

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@MUSHIN_888
@MUSHIN_888 - 07.03.2025 06:13

Bit of an ask but can u make videos on dimensional modelling like star schemas? Thank u

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@eddu4361
@eddu4361 - 06.03.2025 15:03

Very helpful! Thanks!

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@eddu4361
@eddu4361 - 06.03.2025 14:45

Pet Type is just a property of Pet so why not add Pet Type as a field to Pet? Saves a Table.

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@samdurden1015
@samdurden1015 - 03.03.2025 13:04

I passed my technical interview because of this video - thank you so much!

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@bigupbig2198
@bigupbig2198 - 27.02.2025 20:53

🫵🫵🫵POST MORE 🫵🫵🫵

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@SF01Ghost
@SF01Ghost - 26.02.2025 20:05

I am confused with the "mother" thing. By definition, a mother is a woman who has kids, so in the example, instead of mother, shouldn't we use "woman"? A woman can or cannot have kids.

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@ahmadsultan7450
@ahmadsultan7450 - 26.02.2025 09:36

Super informative! Thank you for this amazing video!
Great work👍

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@StudyMan-e1n
@StudyMan-e1n - 23.02.2025 22:48

Thanks for the great explanation!

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@naturindagloriagloria9500
@naturindagloriagloria9500 - 18.02.2025 22:31

the other tables u put i didnt get that\

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@adidyu
@adidyu - 16.02.2025 00:12

Your videos are so good and you explain every concepts clearly. Your voice is also easy to follow. I wish you made for videos. Thank you!

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@sarazdcovers
@sarazdcovers - 14.02.2025 02:50

But doesn't a double line in Chen Notation represent a multivalued attribute and not anything that has to do with relationship? Or is that the same thing?

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@wintutorials2282
@wintutorials2282 - 10.02.2025 21:43

Everything clicks in place now. Wonderful video. Great explanation. I needed a recap of Databases and this video was perfect

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@bjesuslovesme_
@bjesuslovesme_ - 07.02.2025 02:50

Thank you so much, very informative and straight to the point

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@Mrbeastfan8379
@Mrbeastfan8379 - 04.02.2025 14:45

nice video i like it

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@Szyrandol
@Szyrandol - 03.02.2025 16:35

Why is the pet type an entity and not an attribute of the pet? Every pet must have a type either way. Is it just more practical this way, and if so why? Great videos btw. Cheers

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@ecvcine
@ecvcine - 03.02.2025 05:55

Thanks

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@odddellarobbia4
@odddellarobbia4 - 30.01.2025 10:52

Where were you when i was doing my final thesis at college😭

Aside of that, where would be the normalization comes in? should it be while making the ERD, or aftermath?

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@aeshhk44
@aeshhk44 - 28.01.2025 22:00

great! thank you

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@michaelgarvie6619
@michaelgarvie6619 - 27.01.2025 00:33

I too am really happy you're back and look forward to seeing more videos :D

I also would love to know what you're using to do the 'hand-drawn' animation in the videos. It's amazing

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@chiefeveryday7541
@chiefeveryday7541 - 26.01.2025 16:54

Where you been ? I used your videos to help me with a database design course a few years ago 😂

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@Anamita_M
@Anamita_M - 26.01.2025 14:33

Please upload more you’re the databases goat !!!

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@Theotoffel1
@Theotoffel1 - 22.01.2025 11:38

That's a very goog explanation! Thank your very much

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@QuentinBurke-z9y
@QuentinBurke-z9y - 22.01.2025 03:37

Please continue making videos!!!

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@AMN_2080
@AMN_2080 - 19.01.2025 18:44

کارت درسته به انتشار ویدیوهات ادامه بده :) ❤

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@tomsmom3447
@tomsmom3447 - 19.01.2025 14:47

Thanks Decomplexify, your videos have been really clear, easy to understand and have appropriate visuals.

Please. upload more content related to database. 😃🙏

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@KC-hk2ub
@KC-hk2ub - 19.01.2025 14:42

Thanks, these videos are an invaluable resource!

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@stombland
@stombland - 15.01.2025 05:46

bro is finalllyy baccccccck

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@georgemiyahara6576
@georgemiyahara6576 - 13.01.2025 21:54

Prima. thanks for the video

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@JimRohn-u8c
@JimRohn-u8c - 11.01.2025 21:58

Thank you for this!

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@AAA-f1m
@AAA-f1m - 10.01.2025 18:52

How do we draw "Views" or query results?

Suppose I'm developing a pet app that has a page where I list all my pets. What does it look like to represent that query in a diagram?

I find that apps are just a bunch of queries with UI. I also spend too long over thinking the perfect DB schema for all scenarios, but ultimately it's just a list view, details view, etc. How do we represent those in a diagram that helps developing the DB schema I actually need?

I hope I'm making sense.


s/o from 🇿🇼 🇿🇼 🇿🇼 keep up the good work

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@Antal46
@Antal46 - 10.01.2025 13:57

Are you kidding me? This took my lecturer 6 months and I could not comprehend WTF he was talking about.. Bro explained normalizations without even mentioning it LOL Thank You!

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@fahdfuhaid573
@fahdfuhaid573 - 03.01.2025 10:20

Thanks.. best explainer

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@AliYoussef-oo4oe
@AliYoussef-oo4oe - 01.01.2025 21:32

the man, the myth, the legend. welcome back bro

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@seekerrv5823
@seekerrv5823 - 27.12.2024 20:15

Kindly bring video on Stored procedures.

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@adetayoakinsanya8149
@adetayoakinsanya8149 - 23.12.2024 14:06

welcome back

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@itaybarok9405
@itaybarok9405 - 21.12.2024 20:52

AMAZING

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@sudip7949
@sudip7949 - 21.12.2024 17:54

Tomorrow i was thinking of revising students about ER diagram, what a perfecting timing of this video recommendation ❤

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@sudiptaranjanpatra1876
@sudiptaranjanpatra1876 - 20.12.2024 05:55

Hey welcome back your explanations are an absolute gem and I love your all videos.... Please keep posting

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