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I am having problems in the relationship of my tables products and stock. the stock table is responsible for storing the qua ... ock. What would be the best option for this case? If none of them are good practice, what could I do? note: I'm using mysql.

I know there are several ways to implement this conceptual model, but I would like to know the best way (if there is one tha ... consistency at the project level conceptual? In this link you can see another example about mutually exclusive relationship

I have a database (MySQL), and in a table I am having about 80 columns. I'm thinking of separating this information into othe ... etc. What is the advantage of using multiple tables with a 1: 1 relationship, instead of using everything in the same table?

Context Consider the sentence below: States: Relationships that are the result of the combination of other relationships ... FCC - 2012-TRE-CE - Judicial Analyst-Systems Analysis discipline: database (it) - subjects: MER (relationship entity Model)

Hello! I am doing a cost table for my company and I am needing to do a search on a Value table, but the only way I currentl ... g is the key to the vertical header of it. I know how to do this in Java, but I don't know "write this in excel". Grateful!

Explaining the context On the internet I found an example of a scheme described like this: Account (num-account, descr-a ... t, descr-account) and launch(numconta, NUM-lanc, data-lanc, value-lanc). Doubt Would the above example be normalized to 3FN?

I am with a project in mind and would like to map the data and create the relationship of the tables, even if only visually b ... create the fields of the tables and the relationship between them, nothing complex like Microsoft Visio, nothing of diagram.

this question already has answers here : ... plies the difference, and the reason for having the 2 terms, of so the 2 were created, and created by someone. Thank you.

Have a problem creating a new table for fields that are not required ? For example in the endereco table (cod_endereco, logra ... l), the second ja and with two tables where the complement table will only be filled if the user informs the complement.

I need to take all users with "Exceção " those of the function that contains id=2, is it possible? Can you fit a Where into ... sents the id of the function find(1) However I need to catch all users of all functions except the do id = 2 is possible?

Hello, I need some help with Relationships. I am studying Laravel and came across this problem. I could use Join, but I wan ... public function colaborador() { return $this->hasOne(Colaborador::class); } } Thank you right now!! :)

I have the models "subscriber": class Assinante(models.Model): name = models.CharField("Nome", max_length=32, null=Fals ... latinium | 119,99 | Planos | Plano | Preço | | Prata | 29,99 | | Gold | 79,99 | | Platinium | 119,99 |

Good night. I am creating a system in Python / Django where I have an n:n relationship between a table personand another p ... ;/tr> {% endfor %} The following error is appearing in the listing: people.People.None . Does anyone know the solution?

I made a diagram and modeled the partners class to engage customers, suppliers, service providers, etc., which will inherit a ... t relate to two at the same time. Could you please evaluate in general and tell me if it is incorrect, What I need correct?

I'm studying database, and at the moment Beyond Bank definitions, type of models I'm seeing cardinality! I have doubts in thi ... igem (min = 1, max=1) and Destino (min = 0, max=1) That is-apparently: the payment as Origin and the billet as destination!