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GitHub - bloomberg/comdb2: Bloomberg's distributed RDBMS
Comdb2 is a clustered RDBMS built on Optimistic Concurrency Control techniques. It provides multiple isolation levels, including Snapshot and Serializable Isolation. Read/Write transactions run on any node, with the client library transparently negotiating connections to lowest cost (latency) node which is available. The client library provides transparent reconnect.

Work on Comdb2 was started at Bloomberg LP in 2004 and it has been under heavy development since.
database 
28 minutes ago by kbonnet
Knex.js - A SQL Query Builder for Javascript
Knex.js is a "batteries included" SQL query builder for Postgres, MSSQL, MySQL, MariaDB, SQLite3, Oracle, and Amazon Redshift
javascirpt  query  db  database  sql 
5 hours ago by steffenfiedler
Your Database Should Work Like a CDN | Cockroach Labs
Optimizing distributed database performance is complicated––with tons of moving parts, it’s a difficult knot to begin untangling. While there are many strategies to squeeze the most out of a complicated piece of software, one of the most prudent is to look at how other types of tech have solved their performance problems.
CockroachLabs.com  Database  Databases 
9 hours ago by GameGamer43
Distributed Counters  |  Firebase
"In Cloud Firestore, you can only update a single document about once per second, which might be too low for some high-traffic applications."

Confirmed at https://firebase.google.com/docs/firestore/quotas#writes_and_transactions

It's not a plan limitation. You can't pay to remove it.

Workaround: create "shards". WTF.
against  Firestore  database  limitation 
9 hours ago by dandv
Mastering ActiveRecord and Arel
Excellent guide to Arel & ActiveRecord. Wish it was not in presentation form, though.
ruby  rails  guide  presentation  slides  programming  development  database 
12 hours ago by Mr0grog
TablePlus | Modern, Native Tool for Database Management
A modern, native tool with elegant UI that allows you to simultaneously manage multiple DB such as MySQL, Postgres, SQL Server, SQLite, Microsoft SQL Server and more.
tools  database 
yesterday by sjelfull

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