| Docker |
dockerタグが付けられた新着投稿 - Qiita |
【Docker】Volumeをすべて削除する |
https://qiita.com/TK_WebSE/items/4e021daab5d9713f0c1b
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volumenamelocaleddccefbde |
2022-11-03 19:43:39 |
| 海外TECH |
DEV Community |
Schemaless to the rescue |
https://dev.to/woovi/schemaless-to-the-rescue-26cd
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Schemaless to the rescueSchemaless is the opposite of defining a schema for your data If you are used to SQL you define a table collection for your data and the columns fields of the table This is the schema of your data It tells you what data you can store in the database This is very useful to make sure you are storing the correct data with consistency It is also important to define indexes to make sure the patterns of access are fast enough However this is not useful if you don t know what data will be stored in the future Or if the data is more heterogeneous than homogeneous When to use Schemaless Imagine you want to let your users define some custom properties for your data You want this because each user is unique and they have different needs As you can t predict what data they will store you can t define a schema for it Another use case for schemaless is when the data is too heterogeneous We are building a mini zapier where each integration will have different configurations As each integration will have different configurations we can t define a schema for it Why Woovi uses MongoDB for schemaless data MongoDB is a document database that store your data using BSON a binary representation of JSON you can read more here MongoDB document To define a field as schemaless you use the type Mixed So you can store any data type there We usually store a JSON object there It let the backend and frontend code handle all variations of the data for us Below is an example of a schemaless collection field that we use in our Webhook data modelingactionPayload type mongoose SchemaTypes Mixed description The schemaless payload of each webhook it s based on action type CALL API SEND EMAIL etc We can also use Wildcard indexes to define index against unknown or arbitrary fields Therefore schemaless queries are fast as known schema db userData createIndex userMetadata How to manage heterogeneous schemas Imagine you want to store these two payload types in the same field url headers Authorization mysecret to example woovi com subject New transaction There are very different so we can t define a data schema upfront in the database Hence the backend frontend code will read the schemaless data and decide what schema type it has For webhook action we can call an API or send an email You can design this using a tagged union in your codetype ActionType CALL API SEND EMAIL type CallRestApiActionPayload url string headers key string string type SendEmailActionPayload to string subject string ConclusionSchemaless gives a lot of flexibility for your application You can let your users define custom properties in any collection of your database In addition it handles heterogeneous and unknown data very well However you need to be careful when using it to avoid increasing the complexity of your database and your code and also avoiding inconsistency of data Woovi is a Startup that enables shoppers to pay as they like To make this possible Woovi provides instant payment solutions for merchants to accept orders If you want to work with us we are hiring Photo by Usman Yousaf on Unsplash |
2022-11-03 10:48:16 |
| 海外TECH |
DEV Community |
What is MongoDB ? |
https://dev.to/rakeshkr2/what-is-mongodb--2jlb
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What is MongoDB Replication for redundancy and high availability sharding for horizontal scaling and other characteristics make MongoDB a popular general purpose document oriented database The most recent versions of the MongoDB server can be downloaded as binary archives from mongodb com or installed using standard packaging techniques A robust GUI for searching aggregating and visualising your MongoDB data is available from MongoDB and is called MongoDB Compass Suitable connectionsMongoDB Community ForumsFrequently Asked QuestionsInstall MongoDB ServerMongoDB Atlas hosted MongoDB as a ServiceClient Drivers and LibrariesCommunity Supported DriversMongoDB documentationMongoDB tutorialsMongoDB University coursesMongoDB Developer HubMongoDB YouTube ChannelMongoDB JIRA bug tracking for MongoDB server and driversMongoDB Feedback Engine feature amp improvement suggestions for MongoDB productsMongoDB Cloud Manager freemium monitoring automation and backupMongoDB Ops ManagerServer Side Public License SSPL FAQBSON specificationMongoDB Wikipedia ArticlePresentationsMongoDB White Papers BooksMongoDB The Definitive Guide rd Edition updated for MongoDB O Reilly Media Dec MongoDB in Action Second Edition covers MongoDB Manning March MongoDB Cookbook Second Edition Packt Jan The Definitive Guide to MongoDB Third Edition Apress Practical MongoDB Architecting Developing and Administering MongoDB Apress MongoDB Applied Design Patterns O Reilly March |
2022-11-03 10:30:00 |
| 海外科学 |
NYT > Science |
Nations Must Increase Funding to Cope With Climate Shocks, U.N. Warns |
https://www.nytimes.com/2022/11/03/climate/united-nations-funding-climate-adaptation.html
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Nations Must Increase Funding to Cope With Climate Shocks U N WarnsFailing to help developing nations brace for disruption will lead to increased conflict and widespread suffering the United Nations wrote in a new report |
2022-11-03 10:01:05 |
| ニュース |
@日本経済新聞 電子版 |
日本酒の精米、新技術で細長く 香り変化し味もすっきり
https://t.co/kRrAeQcCws |
https://twitter.com/nikkei/statuses/1588123856895504384
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香り |
2022-11-03 11:00:08 |
| ニュース |
@日本経済新聞 電子版 |
［社説］FRBの真価問う物価安定と景気の難路
https://t.co/Rd0ZS2paV4 |
https://twitter.com/nikkei/statuses/1588118972544999424
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社説 |
2022-11-03 10:40:43 |
| ニュース |
@日本経済新聞 電子版 |
［社説］北朝鮮は軍事的緊張を高めるな
https://t.co/jDPSfamX9T |
https://twitter.com/nikkei/statuses/1588111915670065152
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軍事的 |
2022-11-03 10:12:41 |
| ニュース |
@日本経済新聞 電子版 |
「王将」社長射殺事件、福岡の組事務所を家宅捜索
https://t.co/dezj2rokOp |
https://twitter.com/nikkei/statuses/1588109653245800448
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家宅捜索 |
2022-11-03 10:03:41 |
| ニュース |
BBC News - Home |
Don't blame us for UK border problems, says Albanian PM |
https://www.bbc.co.uk/news/uk-politics-63489276?at_medium=RSS&at_campaign=KARANGA
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migration |
2022-11-03 10:08:42 |
| ニュース |
BBC News - Home |
Cold, hungry migrants left stranded in London |
https://www.bbc.co.uk/news/uk-63489901?at_medium=RSS&at_campaign=KARANGA
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hungry |
2022-11-03 10:20:07 |
| ニュース |
BBC News - Home |
David Fuller: Double murderer pleads guilty to more mortuary sexual abuse |
https://www.bbc.co.uk/news/uk-england-kent-63488309?at_medium=RSS&at_campaign=KARANGA
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sentence |
2022-11-03 10:40:29 |
| ニュース |
BBC News - Home |
Tory MP Andrew Bridgen facing suspension from Commons |
https://www.bbc.co.uk/news/uk-politics-63498136?at_medium=RSS&at_campaign=KARANGA
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cavalier |
2022-11-03 10:28:50 |
| ニュース |
BBC News - Home |
Bounty bars removed from Celebrations tubs in trial |
https://www.bbc.co.uk/news/business-63497187?at_medium=RSS&at_campaign=KARANGA
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chocolate |
2022-11-03 10:01:48 |
| ニュース |
BBC News - Home |
How much could your mortgage rise? Try our calculator |
https://www.bbc.co.uk/news/business-63474582?at_medium=RSS&at_campaign=KARANGA
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payments |
2022-11-03 10:47:39 |
| ニュース |
BBC News - Home |
Australia 57-53 England: Roses lose series 3-0 thanks to final-Test defeat |
https://www.bbc.co.uk/sport/netball/63495942?at_medium=RSS&at_campaign=KARANGA
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diamonds |
2022-11-03 10:27:19 |
| 北海道 |
北海道新聞 |
地方出版社の３作品を表彰 「ブックインとっとり」 |
https://www.hokkaido-np.co.jp/article/755286/
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鳥取県 |
2022-11-03 19:05:00 |
| 北海道 |
北海道新聞 |
キウイ直売所が１日限定復活 原発避難の福島・大熊 |
https://www.hokkaido-np.co.jp/article/755285/
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原発事故 |
2022-11-03 19:05:00 |
| ニュース |
Newsweek |
ウクライナで大活躍の兵器HIMARS、ハロウィンでは子供たちに「キャンディ発射！」 |
https://www.newsweekjapan.jp/stories/world/2022/11/himars-3.php
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2022-11-03 19:07:00 |
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