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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59 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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23 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 ...
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1answer
63 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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1answer
35 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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1answer
87 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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2answers
164 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 ...
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1answer
124 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 ...
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2answers
49 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 ...
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1answer
776 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. ...
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1answer
51 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 ...
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2answers
175 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 ...
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1answer
37 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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366 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 ...
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28 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" ...
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1answer
71 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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2answers
116 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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1answer
27 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 ...
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3answers
282 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 ...
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3answers
192 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 ...
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2answers
98 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…). ...
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69 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....
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10 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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0answers
74 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 ...
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2answers
79 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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1answer
389 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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1answer
328 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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1answer
869 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 ...
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1answer
81 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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60 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 ...
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2answers
587 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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1answer
35 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 ...
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2answers
275 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 ...
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1answer
206 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, `...
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3answers
337 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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1answer
48 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)...
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1answer
179 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. ...
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1answer
75 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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1answer
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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2answers
17k 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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1answer
434 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
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1answer
454 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: ...
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2answers
48 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....
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1answer
76 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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3answers
6k 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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5answers
158k 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 ...
0
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1answer
126 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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1answer
733 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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1answer
48 views

Open access relational database [closed]

I have some very basic knowledge in SQL which I mainly learn from some theoretical data science course. I would like to write a few lines of SQL just to experiment and train myself. Can you please ...
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1answer
6k views

MySQL audit and general log

May ask for the difference of MySQL Audit log plugin and general log? I looking for any activities done in a MySQL server.
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2answers
1k views

Recommendation for storage of series of time series

Just a few words describing the data: In my application, there are acceleration measurements (for example at 25kHz) for the exemplary duration of one second. These measurements get repeated in not ...

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