Questions tagged [database-recommendation]

Determining what database product best fits the requirements and limitations in a specific situation. This is advice that generally requires much more insight into requirements than can easily be gleaned on a Q&A forum such as StackExchange.

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-3 votes
2 answers
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Best database for array like collections

I'm going to build a Go application that will check id(s) in a list of ids. Structure will be something like this for database: Company A List 1 -> 100.000 ids List 2 -> 250.000 ids Company B ...
0 votes
1 answer
368 views

Choosing the right database for stock price history

The model is [(stock_id, period, ts), open, high, low, close, last, volume] We write new prices for all stocks (120,000) each minute and delete old once when they go out of retention time. It doesn't ...
1 vote
1 answer
787 views

Best database for storing and retrieving articles / blog posts / forum posts etc [closed]

I am trying to create a database to store articles, posts etc. They will usually contain a header column, content and some meta data like author or date time stamp, I assume each of these will be a ...
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2 votes
2 answers
98 views

Are relational databases even viable for large eCommerce platforms? [closed]

I've been assigned to an eCommerce platform that has huge quantities of data ( hundreds of thousands of products, sellers, etc ) and I've been trying to choose the proper tools and approaches required ...
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1 vote
2 answers
66 views

How do I resolve having a M:N relationship in my Crow's Foot Model? Am I on the right track?

I am very much a beginner and taking a class on databases. My assignment involves using Crow's Foot notation to represent the following tables: This is my design for it so far. I am nowhere near done ...
0 votes
1 answer
477 views

Best Database for range queries on a single column [closed]

here's my usecase: I have these fields: id(int), frequency(int), created(timestamp). I need a database that can optimize range queries on created field. Specifically for queries like: SELECT * FROM ...
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-1 votes
1 answer
42 views

Best Database to be shipped with my application? [closed]

I have a .NET core application using a database. I need to create an installer using NSIS where I will be packaging my application along with a database, so that the client can easily install my ...
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0 votes
1 answer
121 views

Many-to-many database [closed]

I am thinking about making a music database. Something where you can search by artist, album or song. This seems to be a Many-to-many model, as an album can have multiple songs, and the same song can ...
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3 votes
2 answers
288 views

Implementating user notifications list using Aerospike

I need to choose the right DB for a notifications system that needs to handle billions of notifications. The record structure is as follows: [user_id, item_type, item_id, created_at, other_data] The ...
0 votes
1 answer
289 views

Storing timeseries data with dynamic number of columns and rows to a suitable database

I have a timeseries pandas dataframe which dynamically increases the columns every minute as well as adds a new row: Initial: timestamp 100 200 300 2020-11-01 12:00:00 4 ...
0 votes
2 answers
59 views

Advice for database implementation [closed]

We need to configure a database for our NGO. We have to save information about the children and several pictures and documents for each of them. A friend is currently saving the data of over 70 kids ...
0 votes
1 answer
2k views

Do we have any File Table / File Stream like support in any other database than MS SQL Server?

I am looking for an alternative to Microsoft SQL Server's File Tables / File Stream feature. The reason is because I really wanted to use SQL Server File Tables but I am on Linux and using docker. ...
0 votes
1 answer
57 views

Which database should be using for my specific goal [closed]

Introduction: I am trying to figure out what kind of database I should use for my project to get the best speed possible. Background: I am not sure if MySQL is the best solution, but I will use MySQL ...
-1 votes
2 answers
283 views

Which database to use when you have a 6 billion of rows inside and need to query rows with from list of IDs? [closed]

We are currently researching our case of storing the road distances between cities. Right now we have 6 billion of those distances. Our structure right now in SQL Server is that we have a float which ...
0 votes
1 answer
45 views

Creating big shared database

I wish to create DB in Firestore. My program will have multiple user and each user will have calendar and can create an event. The user can share this event with any other user (Similar to Google ...
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1 vote
2 answers
1k views

Geo Route - Best way/db to store route path

We are developing an app in that UI need to show a path where a truck driver drives the truck. Driver mobile will continuously send (example every 10 seconds) their live location. Which database is ...
0 votes
0 answers
37 views

db choice for activity log

I'm working on a geo-replicated web platform, composed of an ecosystem of microservices. We need to improve and rework the user activity tracing pipeline and I'm looking for "the best" ...
1 vote
1 answer
78 views

Database software solution [closed]

Our company has user data (name, email, phone number, systems of access, AD username) in a large Excel workbook. The Excel workbook is becoming very slow because of the 1000s of entries in it, and we'...
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-2 votes
2 answers
192 views

MySql : Does it worth to convert a column with type DATETIME to DATE?

At the start of a project, a DATETIME column made sense. But now, 5 years after, requierments changed the time part have never be used. My table has about 100k lines and grows with about 500 lines ...
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0 votes
1 answer
35 views

Is there a type of database that can directly recall an element given a pointer in O(1) time?

I'm currently using levelDb, which is a key->value store database. The only data being inserted are small binary blobs (that represent nodes for a large merkle tree). When I put a value in the db, I ...
  • 101
1 vote
3 answers
1k views

How to store real-time data to database [closed]

Here is my situation: I have a WebSocket connection that feeds me data real-time I have an async callback function that gets the data and inserts into a queue I have another thread that reads from ...
  • 111
0 votes
3 answers
540 views

Overwriting MySQL database to only store 1 month of data

We are logging data on hardware with only small memory (short on disk storage) only 4GB. We only require the data to be stored for 1 month and then be over written in a way that it overrides older ...
-3 votes
2 answers
127 views

Python - Best database for exponentially growing database? [closed]

So I am making a Discord (social media) Bot in Python using discord.py-rewrite, and I need to save informations of lots of servers and users (such as how much money they have, what items thay have…). ...
4 votes
0 answers
91 views

How to set up a solid MySQL/MariaDB Server for +3000 active connections? [closed]

Background. I have an App connecting to an RDS instance on Amazon (r3.Large) and it's working smoothly. However, the boss does not like to spend ~ $1,000 bucks a month on it so we are moving In-house....
1 vote
0 answers
12 views

Database/cloud solution for very wide time series data (i.e. spectra with up to 8196 columns)?

I'm dealing with data from a science project which comes from a multi-channel analyzer: once per minute I get 2048 integer values from one device and 8192 integer values from another device. Both ...
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4 votes
0 answers
90 views

What DBMS to choose for my production environment? [closed]

This is my very first question on the StackExchange/StackOverflow community. I originally am an electrical engineer so I hope you bear with me. I need to set up a database whose purpose is to be ...
0 votes
2 answers
118 views

Database which can be setup without admin user [closed]

I'm looking for a database (relational would be preferred, but NoSQL is also okay) which can be run without an admin user. I want to setup the database with an admin user, but then delete the admin ...
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0 votes
1 answer
619 views

View images as query results [closed]

I've done lots of research on the topic but I'm drawing a blank. Are their any database engines that can return rendered images in the query response? For example: Select images from fruit where ...
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0 votes
1 answer
466 views

Multi-master (NoSQL) database solutions with cloud and no-premise option [closed]

We are currently investigating database options for distributed database (possibly globally distributed) where the data in general is stored in "cloud" (this would not be a special requirement). The ...
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4 votes
1 answer
891 views

How do database operations (write, update, alter) on particular cell in a table are written to disk without overwriting entire file?

When I want to write to or alter particular cell of an excel file/table using python I'll use pandas read_csv then alter value in particular cell and write back to file with to_csv. But writing back ...
-4 votes
1 answer
87 views

which is the appropriate database for my use case [closed]

I have a set of n sentences (n >= 100k). I want to perform queries of the sort where given a set of n_i sentences i return a set of m_i words that is present in one subset of n_i sentences and not ...
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1 vote
0 answers
65 views

How to design a database for production volume and loses control? [closed]

I must develop a database for inputting information of the produced volume (hourly), quality and technical issues during this production. As the input of the production volume is made manually, the ...
1 vote
2 answers
859 views

Are there alternatives to Microsoft Access? [closed]

In my office, we often use MS Access for many applications (eg creating reports, data analysis and data processing) because it is convenient to use (easy data import, fast query building, easy ...
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1 vote
1 answer
37 views

Different categories of missings

Most database systems can represent missing values, typically as "Null" or something similar. But what if I want to represent different categories of missing data? For categorical data, this is ...
3 votes
2 answers
317 views

Structured .TXT Data To A Proper DBMS [closed]

I'm presented with multiple .txt documents (each with its own set of columns) containing rows separated by some type of delimiter (which is different across the files). Each .txt file has different ...
0 votes
1 answer
291 views

database and table design for billions of rows of data

basically i got 2 tables: header, details tables. CREATE TABLE `header` ( `ID` int(11) NOT NULL AUTO_INCREMENT, `RECORD_DATE` datetime DEFAULT NULL, `TICKER_ID` int(11) DEFAULT NULL, `...
0 votes
3 answers
439 views

Zero Maintenance self-hosted off-line databases?

I'm looking for a "Zero Maintenance" database engine that can be installed on Windows. We have a lot of customers that want our software installed on their local computers. Although we have a cloud ...
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3 votes
1 answer
53 views

Storage solution to run IoT analytics [closed]

I have several hundred IoT devices pushing data to my server every minute. The data is structured and it has following columns: Site ID (String) Event Start time (Date Time) Event End Time (Date Time)...
-1 votes
1 answer
190 views

Suggestions for type of DB to use (Elasticsearch vs MongoDB vs Hadoop)

I am hoping some of you highly skilled DBAs can provide some insight as to the best DB to use for this dataset. This is a relatively simple dataset with no relationship needed between the entries. ...
0 votes
1 answer
86 views

Should I use MongoDB or a relational database management system for this scenario? [closed]

I have a different item types, each item has different number of attributes some attributes might contain an arbitrary number of values. For example, a building which has amenities attribute, this ...
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2 votes
1 answer
6k views

best local database (for PC) [closed]

I have a PC which runs a local desktop application that connects to a logic server with a database. additionally i need a small cache database in this PC so when the client goes offline for some ...
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4 votes
2 answers
20k views

Single user mode while restoring database

Is it necessary to put the database into single user mode before restoring a database? If so which one is more preferable putting the sql server into single user mode or putting the database only into ...
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0 votes
1 answer
513 views

Which database is best for storing mouse movement data for analytic stuff? [closed]

Problem I want to track the user behavior on website. I am tracking the mouse movement and after tracking certain number of mouse movements, i am planning to send this data to my server, where i will ...
0 votes
1 answer
463 views

SQL Import text files [closed]

I have a directory that will regularly have text files dumped in it that I'm trying to get imported into a single SQL table. Basic format of the text files is as such: [DATA] Test: 12345 Test type: ...
0 votes
2 answers
67 views

Regex rules engine based on SQL

I have a table which I use to determine actions based on conditions provided. This is what it looks like right now. IPAddress, MACAddress, Hostname, ScriptName, Argument1, Argument2, Argument3 10.2.1....
1 vote
1 answer
95 views

Having two entities that are the same except for 1 distinct attribute

In an example scenario for a database design assignment, a company provides hotel rooms (split into two entities - Hotel and Room) and apartments. So the database will contain the following entities: ...
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3 votes
3 answers
8k views

What is the difference between views and materialized views

What is the difference between PostgreSQL's materialized views and MySQL's views?
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116 votes
5 answers
183k views

Best database and table design for billions of rows of data [closed]

I am writing an application that needs to store and analyze large amounts of electrical and temperature data. Basically I need to store large amounts of hourly electricity usage measurements for the ...
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0 votes
1 answer
177 views

MySQL : Are hash indices useless?

In MySQL, hash indices are only supported by the MEMORY storage engine. By using this engine, data is stored in RAM, not on the hard disk, so it will be lost when MySQL is restarted. Also, ...
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1 vote
1 answer
914 views

NoSQL or RDBMS for a Giant Lookup Table?

What is the best way store leaked website credentials? I've come up with two that would get the job done for the most part, but I am trying to find the fastest and most efficient solution. Take for ...
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