Win a copy of JDBC Workbook this week in the JDBC and Relational Databases forum
or A Day in Code in the A Day in Code forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Jeanne Boyarsky
  • Junilu Lacar
  • Henry Wong
Sheriffs:
  • Ron McLeod
  • Devaka Cooray
  • Tim Cooke
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Frits Walraven
  • Tim Holloway
  • Carey Brown
Bartenders:
  • Piet Souris
  • salvin francis
  • fred rosenberger

Help on Core Concepts Confusing

 
Greenhorn
Posts: 1
Chrome
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
1. what is the differences between connection and a thread?
2. when people say DB supports connection pooling does connecting pool size and thread are same?
3. why JDBC is a blocking I/O and R2DBC claims non-blocking which don't understand
4. pool of connection vs pool of threads

Need one or 2 practical example. If anything with image/diagram would be very much useful.

Thanks.
 
author & internet detective
Posts: 39986
806
Eclipse IDE VI Editor Java
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
A Connection connects to the database. Threads have nothing to do with databases and are used so you can execute code in the background.

I recommend reading Oracle's Trail on Threads. Understand that before trying to understand JDBC.
 
Morning came much too soon and it brought along a friend named Margarita Hangover, and a tiny ad.
Devious Experiments for a Truly Passive Greenhouse!
https://www.kickstarter.com/projects/paulwheaton/greenhouse-1
    Bookmark Topic Watch Topic
  • New Topic