Questions tagged [Databases] (3154)

Hello! Advise books or courses on introduction to database, to learn to design database, know the principles of integrity, etc.

The site has a lot of small units (phones, partners, address, working time, social. links, etc.) which are edited separately and stored in the database also as separate entries. That is, there is a table 'singl' with fields single: (int 100), content: (varchar 500) these small units about 50. And there is a table 'pages' wi...

Please tell me what database to choose, so she was able to handle 1000 simultaneous requests per minute to it, namely the process of recording it?

In General, there is a kind of database from which you want to retrieve data for the site. It is necessary in the information block (Le (Li)) instead of page references to link to a specific entry in the database.

Hello everyone, I'm a front-end developed. Recently , for the overall development started to learn node JS. Please explain this to me : The database does not have bindings to specific languages? If I understand correctly, the database is just a standalone technology to which we have access, by means of the language in whic...

In my case, in the table, the Transaction must be stored the user account of the sender(commits the transaction) and an invoice recipient(receives transactio). Moreover, the user may have different accounts. As it correctly to organize with the help of a relational database. Is it okay to keep two instance values Account fo...

Welcome. Are there any patterns/best practice for effective storage of rules, consisting of a combination of logical operators? The challenge is to dynamically build the filters for selection of records in the table matching this rule. And also to have the ability to edit rules. Preferably the rules are stored in the table...

The essence of the program in the following: Obtaining a data location in the method onLocationChanged() every few seconds (maximum of 5). Each time it is executed to store the data for 10 - 30 fields in the database. Will there be a normal solution in terms of performance and autonomy to update the values in the database?

Hi all, there is a challenge which is asking for a replication of the "master master", but to use it in its pure form is not desirable because of its reliability. We have several services that work with the General lookup tables. Each of them can read and write. The idea is the following - each service works with a local ...

good day, I need to mount the database one project to another, how can I do that using ssh?