Recent questions tagged database-data

1 vote

4 answers

How to transfer data from a network interface to a C++ application as fast as possible?

How to transfer data from a network interface to a C++ application as fast as possible? The data is now streamed via ODBC to the database, and the application reads it from there. Surely this is not the fastest way to get data from the network interface to ...

by immelnikoff

asked Sep 22, 2021

0 votes

3 answers

Choosing a DB for a doctor's appointment?

Choosing a DB for a doctor's appointment? Hello, I'm working on a website for a private medical facility. The main function is an appointment with a specialist (as in gosudlugi). The question, what database to ...

by Zenddos

asked Sep 21, 2021

2 votes

1 answer

Is it possible to describe the data model only in the database?

Is it possible to describe the data model only in the database? Greetings! At one of the online seminars, I heard a developer (in erlang) say that the data model in functional languages only needs to be described in the database, wit ...

by max_shane

asked Sep 21, 2021

1 vote

2 answers

What should I choose between a text file or a binary file?

What should I choose between a text file or a binary file? I have started to write a C-like subdirectory. And I faced the question where to store data in a text file or in a binary file, so that the data is parsed by a program o ...

by EgorBolotow

asked Sep 18, 2021

1 vote

1 answer

Is there an online DB sharing service?

Is there an online DB sharing service? I tried to put Heidi on the local, but it did not work so well, maybe there is a service of some kind? ...

by Domovik93

asked Apr 2, 2021

1 vote

2 answers

How to make a simple server API in JS, what database is better to use?

How to make a simple server API in JS, what database is better to use? Hello, everyone! I have a small site that has a table with data. The data is stored in excel, then converted to json and stored in a json file on the site, from which ...

by ilonikso

asked Mar 29, 2021

1 vote

1 answer

What database is used to collect game statistics?

What database is used to collect game statistics? There is a game in node.js, the maximum number of slots can be 5000. We need to implement the collection of game data (statistics): - online statistics; - character's ...

by ramanovsky

asked Mar 29, 2021

1 vote

1 answer

A database with a notification to the user?

A database with a notification to the user? Hello! I want to attach a database with a notification for the user, the essence is this. There is an Excel file, in which the people receiving the certificate have bee ...

by tempooo

asked Mar 29, 2021

1 vote

3 answers

What databases are used for dynamic sites?

What databases are used for dynamic sites? What databases are usually used for sites with a large flow of data? For example, the same cs.fail that can be used to work with a lot of data? ...

by dfhkjhg

asked Mar 26, 2021

2 votes

6 answers

Why use different RDBMS when you can use the data structures of the language, such as dictionaries and lists in Python?

Why use different RDBMS when you can use the data structures of the language, such as dictionaries and lists in Python? With dictionaries, lists, sets, tuples, you can completely replace the database for any task. So why bother learning different databases and subdatabases when you can us ...

by bituke

asked Mar 26, 2021

1 vote

1 answer

Transactions for multiple insert performance?

Transactions for multiple insert performance? I heard that if we wrap ninserts in a transaction, IO interactions will be 1, not n (as if we do insert one at a time, without involving a transaction). Is it so? If so ...

by Lite_stream

asked Mar 22, 2021

4 votes

7 answers

What to convert a huge, hundreds of GB, CSV file for the fastest possible reading by "key"?

What to convert a huge, hundreds of GB, CSV file for the fastest possible reading by "key"? There are csv, from tens of GB to 1 TB, that is, much more than my RAM. There are about 5 fields in a table row. The size of one field can be considered non-fixed. The n ...

by hostovik

asked Mar 22, 2021

2 votes

1 answer

What type of database to choose?

What type of database to choose? Good afternoon, professionals! We are developing a service for analytics, we use MySQL, and we realize that every day we have more than 50 million new records in a mult ...

by lexabubu

asked Mar 22, 2021

2 votes

2 answers

SQL injection. Could you tell me what to say about it?

SQL injection. Could you tell me what to say about it? I don't understand anything about sql. But it looks like sql Injection, am I right? If so, is it possible to tell anything from these screenshots. What is the result of ...

by MummersMoral

asked Mar 21, 2021

1 vote

4 answers

What are the popular types of sharing and storing data for the site? A tip, I'm starting to work with the database. Worked only with SQL. What are the popular and relevant data storage resources, their names? Heard about the rabbit, what ...

by dieneri

asked Mar 20, 2021

1 vote

2 answers

How do I open the dataset?

How do I open the dataset? I have a database with the format .dat if you open it with the editor, then at the top shows Standard Jet DB If I open it with Microsoft Access, it shows scribbles Found ...

by MrSel

asked Mar 13, 2021

1 vote

1 answer

How do you practice with transactions and locks?

How do you practice with transactions and locks? I'm studying the database from a book with a lot of theory, but little practice. If I understand data integrity, I don't understand transactions and locks: How to make a ...

by Sentim

asked Mar 13, 2021

1 vote

1 answer

What do I need to know before studying DB?

What do I need to know before studying DB? I'm about to learn postgresql, I've never had anything with databases before except sql in Django, but it's easier there. So, my question is. What do I need to know befo ...

by AnatolyBossman

asked Mar 7, 2021

2 votes

1 answer

You need to create a database for the company with the results of sales, what software?

You need to create a database for the company with the results of sales, what software? The results come by e-mail every day in the attached Excel file on Google disk in tables. Need to set up automatic export to the database to generate new reports from th ...

by Ivan372020

asked Mar 6, 2021

1 vote

2 answers

Client-server application for Android?

Client-server application for Android? In general, you need to write the simplest possible server with a database for the Android application. What DBMS and language to use? Where can I read in detail. Tried ...

by sergo1217

asked Mar 6, 2021