Backend>Questions

How to Efficiently Find and Remove Duplicates in a Large SQL Database?

harwind

harwind

How to Efficiently Find and Remove Duplicates in a Large SQL Database?

I have a large SQL database with millions of records, and I’ve identified duplicate entries. What’s the most efficient way to find and remove these duplicates without compromising database performance or data integrity? Are there any best practices or SQL queries that can help in this situation?"

This question addresses a common database maintenance task and invites SQL experts to share their knowledge on efficiently identifying and dealing with duplicate records in a large database.

View thread on forum
#question
1 666 0

Where Next?

View thread on forum
question
Home Backend>Questions
#question
1 666 0
Last post

Popular Backend topics Top

Jsdr3398
Backend>Questions

Raxx routing doesn't seem to work
I’m trying to create a router where everything is in a collection of routes (similar to how I do my routes in expressjs). But it doesn’t ...
#raxx
8 1342 6
New
GermaVinsmoke
Backend>Questions

Programming Elixir or Elixir in Action?
Reading Programming Elixir 1.6 book, I’ve completed part 1 of the book. Now I’m thinking of reading Elixir in Action. What do you all sug...
/elixir
34 2021 8
New
sampu
Backend>Questions

Keep Alive data packets configuration with Spring Webflux endpoint
I have a use case where a client is invoking a Rest endpoint via a load balancer, which in turn invokes a third party endpoint which is r...
#keep-alive
5 2017 1
New
Fl4m3Ph03n1x
Backend>Questions

Option type compatible with comprehensions in Elixr?
Background I am trying to up my Functional Programming (FP) skills and one of the things that newcomers first learn in FP is the Option T...
/elixir#functional-programming
12 1677 4
New
Fl4m3Ph03n1x
Backend>Questions

How to have custom enconding for struct using Jason?
Background I am trying to encode a structure into json format using the Jason library. However, this is not working as expected. Code L...
/elixir#json
6 2879 1
New
Fl4m3Ph03n1x
Backend>Questions

Is there a way to have Elixir Records without default values?
Background I am trying to find a cheap and easy way to create New Types in Elixir, and Records seem to be just what I would need. Probl...
/elixir
10 1230 2
New
osbre
Backend>Questions

Is there a specification or recommendations on implementing “one-time authentication” link?
Hello everyone I’m trying to implement a “magic link” or “one-time login link” functionality I wonder what a secure way to implement it...
#help-needed
9 1124 2
New
KnowledgeIsPower
Backend>Questions

Do your company uses microservices?
Is it monolithic or using micro-services?
#backend
5 776 3
New
Fl4m3Ph03n1x
Backend>Questions

Cannot compile ssl_verify_fun in Windows 11 for Elixir
Background I have a phoenix application in Windows 11. Unfortunately for me, I cannot compile the application because of a dependency err...
/elixir/phoenix
4 1486 2
New
yamuna
Backend>Questions

How to run Ollama deepseek-coder:6.7b-instruct-q4_K_M in Docker for CrewAI Agents?
Hi everyone, I’m trying to run deepseek-coder:6.7b-instruct-q4_K_M in Docker using Ollama to create an LLM that will be used by CrewAI a...
#docker/deepseek#ollama
0 2871 0
New

Other popular topics Top

PragmaticBookshelf
Backend>Learning Resources

Testing Elixir
Write Elixir tests that you can be proud of. Dive into Elixir’s test philosophy and gain mastery over the terminology and concepts that u...
pragprog.com
#pragprog/elixir#published-book/book-testing-elixir
33 5004 8
New
Rainer
Community>Journals

Programming Erlang Book Club
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
/erlang/book-programming-erlang-2nd-edition#book-club
195 6815 95
New
First poster: CommunityNews
AI>In The News

How to fix the eyes in AI-generated images
aidemos.info
0 4508 0
New
husaindevelop
Android>Questions

Clipboard readtext not working in android webview
Inside our android webview app, we are trying to paste the copied content from another app eg (notes) using navigator.clipboard.readtext ...
#android#clipboard
1 5651 0
New
PragmaticBookshelf
Backend>Learning Resources

Programming Ruby 3.2 (5th Edition)
Programming Ruby is the most complete book on Ruby, covering both the language itself and the standard library as well as commonly used t...
twitter.com
#pragprog/ruby/rails#published-book/book-programming-ruby-3-2-5th-edition
28 8550 13
New
First poster: bot
General Dev>In The News

Zig now has built-in HTTP server and client in std
zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig. General-purpose programming language and toolchain for maintaini...
github.com
/zig#http
0 5624 0
New
PragmaticBookshelf
Backend>Learning Resources

Engineering Elixir Applications
Develop, deploy, and debug BEAM applications using BEAMOps: a new paradigm that focuses on scalability, fault tolerance, and owning each ...
pragprog.com
#pragprog/elixir#published-book/book-engineering-elixir-applications
40 7136 21
New
PragmaticBookshelf
Backend>Learning Resources

Ash Framework
Explore the power of Ash Framework by modeling and building the domain for a real-world web application. Rebecca Le @sevenseacat and ...
pragprog.com
#pragprog/elixir#published-book/ash/book-ash-framework
15 7555 9
New
PragmaticBookshelf
Backend>Learning Resources

Simplicity
Fight complexity and reclaim the original spirit of agility by learning to simplify how you develop software. The result: a more humane a...
pragprog.com
#pragprog#published-book/book-simplicity
10 6553 8
New
PragmaticBookshelf
Backend>Learning Resources

Eloquent Ruby, Second Edition
Write elegant Ruby code—not just correct, but idiomatic. Go beyond the vocabulary and syntax and learn to express yourself with eloquence...
pragprog.com
#pragprog/ruby#published-book/book-eloquent-ruby-second-edition
11 7668 8
New
Back to top

Sponsor Spotlight

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Backend>Questions

Backend Questions ❯

Latest on Devtalk

Devtalk ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

Linux New Media

Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.

View all our sponsors ❯

Categories:

Sub Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

Linux New Media

Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap