Thank you so much!! I can only understand theis topics with you, my professor is really bad at explaining things. This will definitely help me throughout the semester.
@flipsmash2 жыл бұрын
Happy to help!
@UNKNOWN-ms7gz9 ай бұрын
same as u
@divyanshusaluja9 жыл бұрын
Excellent Video. You just simplified some terribly written books. Thanx a lot !!!
@iphoneusdsd10 жыл бұрын
thank you brian! saved my assignment on eer and the relation model,
@codydavis28713 жыл бұрын
Literally about to say the same thing. Just helped me finish my paper
@more-uv4nl Жыл бұрын
you made me pass my exam
@udanasrimal7 ай бұрын
Thank you sir❤
@flipsmash6 ай бұрын
Most welcome
@arts.maimounah2 жыл бұрын
Thank you so much Sir⭐⭐ amazing lesson , great representaion 👍
@jaderabbit126711 ай бұрын
Thank you for the video. It was very helpful
@mertturker1015 жыл бұрын
Thank you so much for the video but I have a question. At the end of the video you were explaining overlap but there was no mapping in overlap.
@SSmitar8 жыл бұрын
Thanks. That was quite helpful
@haithuysherman8144 жыл бұрын
Can you please make a video on Union please?
@mortal7876 жыл бұрын
This help me so muchh , thx bro
@alextilson97413 жыл бұрын
With all in one, instead of binary classes, cant you represent it with a binary(max)? i.e: 0 -> {} 1 -> {Programmer} 01 -> {Engineer} 11 -> {Admin} 100 -> {Programmer, Engineer} 101 -> {Engineer, Admin} 110 -> {Admin, Programmer} 111 -> {Programmer, Engineer, Admin}
@alextilson97413 жыл бұрын
This would also make it easier to constrain again certain ones, i.e. exclude: {0, 101, 111} etc.
@seyyedrizmy4732 Жыл бұрын
Hi in the video about the subclasses, wont they be applicable when there is covering constraint and not the disjoint??
@Escko2 жыл бұрын
Great...ty!!!
@xyanrock76486 жыл бұрын
for the overlapping cases when for example 1) when an employee is admin , programmer and engineer 2) when an employee is programmer and engineer or any two among the three sub classes is there is any standard technique to represent the constraint in diagram. thankx.
@KistlakRajapakshaSevenNet8 жыл бұрын
Thank U Very Much Bro !! :D
@TheEechee9 жыл бұрын
well explained ^^ thank u man
@liesbethjongkind8 жыл бұрын
very, very clear!
@marichujoy9 жыл бұрын
What do the "U's" that you drew in represent?
@flipsmash9 жыл бұрын
The U indicates the direction of the specialization. The U is open towards the generalized entity. Given the possibility of multiple inheritance, it's possible otherwise to be confused about which entities are the generalized ones.
@lorenzorichards7093 Жыл бұрын
Design the database for a programming support environment. In this environment programmers produce programs, which are written in given programming languages. Each program is written by a given programmer, can call other programs, and can be used by given users. Users are recognized by their log-in names. Programmers are recognized by their log-in name and by their code. Programs have compound names that include the program's name, the extension and the programmer's code. Programs have a version number, a date and a short description; some programs interact with DBMSs. Each DBMS maintains stored data in the form of relations, with several attributes and one primary key. Each database is defined by a database administrator, who is a programmer specialized in data management. State clearly any assumptions you make. Good morning, I seem to having issues creating the ERD with ISA what did I do wrong?
@flipsmash Жыл бұрын
Sorry, this looks to be homework. You should seek help via your instructor/institution
@shayanjavadi6 жыл бұрын
programmers are engineers too ;)
@abdulrehmanmian14766 жыл бұрын
your goatee is out of allignment and its bugging the hell outta me