In database systems, consistency (or correctness) refers to the requirement that any given database transaction must change affected data only in allowed ways. Any data written to the database must be valid according to all defined rules, including constraints, cascades, triggers, and any combination thereof. This does not guarantee correctness of the transaction in all ways the application programmer might have wanted (that is the responsibility of application-level code) but merely that any programming errors cannot result in the violation of any defined database constraints. Consistency can also be understood as after a successful write, update or delete of a Record, any read request immediately receives the latest value of the Record. (Wikipedia).
Relational Databases (part 1 of 6)
The essential concepts of relational databases. Part of a larger series teaching programming. Visit codeschool.org
From playlist Relational Databases
What is the structure of an SQL query? What logical operators and wildcards can be used in such queries?
From playlist Database Systems
Database Transactions, part 3: ACID and Isolation
Learn about ACID (Atomic, Consistent, Isolated, Durable). We focus on Isolation and see what happens when transactions overlap.
From playlist SQL Databases
Relational Databases (part 4 of 6)
The essential concepts of relational databases. Part of a larger series teaching programming. Visit codeschool.org
From playlist Relational Databases
Most network file systems are either a layer over an existing filesystem (NFS, CIFS), or are developed from scratch to have separate, replicated, purpose-designed databases for metadata and object store (GFS, Glusterfs). At the same time, most database engines provide (or can be coerced i
From playlist Databases
A #database #index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database
From playlist Database
RailsConf 2021: Scaling Rails API to Write-Heavy Traffic - Takumasa Ochi
Tens of millions of people can download and play the same game thanks to mobile app distribution platforms. Highly scalable and reliable API backends are critical to offering a good game experience. Notable characteristics here is not only the magnitude of the traffic but also the ratio of
From playlist RailsConf 2021
IMT4889: Distributed Databases. RISC vs CISC.
IMT4889: Specialisation course. Distributed Databases. CAP theorem. RISC vs. CISC. ARM vs INTEL.
From playlist Archive - Research in Mobile/Wearable Tech
Scotland Ruby 2011 - On the Papers of Giants: Understanding data storage
by: Ethan Gunderson It's unanimously decided: SQL is out, everything else is in. Well, that's what everyone is saying at least. If you pick your data store based on the bullet points of their website, this talk is for you. Companies like Amazon, Google, and Yahoo! have been building these
From playlist Scotland Ruby 2011
NoSQL Tutorial For Beginners | A Complete Guide To NoSQL Databases | Simplilearn
🔥 Advanced Certificate Program In Data Science: https://www.simplilearn.com/pgp-data-science-certification-bootcamp-program?utm_campaign=ACompleteGuideToNoSQLDatabases-aUPVpIYiLCc&utm_medium=Descriptionff&utm_source=youtube 🔥 Data Science Bootcamp (US Only): https://www.simplilearn.com/da
From playlist SQL Tutorial Videos🔥[2022 Updated]
SQL vs NoSQL OneShot For Beginners | Difference Between SQL And NoSQL | SQL Tutorial | Simplilearn
There are many databases available in the market, and knowing which one to choose can be extremely difficult.This video by Simplilearn will focus on two popular types of databases SQL and NoSQL which are majorly used these days, This tutorial will help you learn the basics of these two dat
From playlist SQL Tutorial Videos🔥[2022 Updated]
Building Apps for Mobile, Gaming, IoT, and more using AWS DynamoDB by Rick Houlihan
Databases have always been the backbone of applications over the past several decades. With time the database technologies have evolved. In this session, we will talk about the evolution of databases from SQL to NoSQL and understand how the NoSQL paradigm is making a big difference in powe
From playlist CS50 Seminars 2015
Lec 19 | MIT 6.033 Computer System Engineering, Spring 2005
Transactions and Consistency View the complete course at: http://ocw.mit.edu/6-033S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 6.033 Computer System Engineering, Spring 2005
MongoDB Tutorial for Beginners | Getting Started with MongoDB | MongoDB Training | Edureka
🔥 Full-Stack Web Development Internship Program: http://bit.ly/fs-internship This Edureka MongoDB Tutorial give you an introduction to NoSQL databases and MongoDB. This is the first video of Edureka's MongoDB Certification Training. Subscribe to our channel to get video updates. Hit the s
From playlist MongoDB Dev & Admin Tutorial Videos
Azure Database Services | Deploying a Database on Azure | Microsoft Azure Training | Edureka
🔥 Edureka Microsoft Azure Certification training (𝐔𝐬𝐞 𝐂𝐨𝐝𝐞: 𝐘𝐎𝐔𝐓𝐔𝐁𝐄𝟐𝟎) : https://www.edureka.co/microsoft-azure-administrator-certification-training This Edureka video on '𝐀𝐳𝐮𝐫𝐞 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬' will give you an overview of Database Services in Microsoft Azure and will help you understan
From playlist Azure DevOps Training Videos | Edureka
AWS Webcast - Introduction to the Elastic Block Store
Elastic Block Store is one of the fundamental components of a best-practices cloud architecture. Join Senior Solutions Architect Miles Ward for a detailed review of the service, a clear breakdown on cost and approaches for price estimates, easy methods for extracting maximum performance fr
From playlist Software Development Lectures