投稿時間:2021-04-27 06:31:57 RSSフィード2021-04-27 06:00 分まとめ(33件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
IT	ITmedia 総合記事一覧	[ITmedia News] Apple WatchでiPhoneのFace IDアンロックを初体験して分かったこと　Apple Watchはもはや必須	https://www.itmedia.co.jp/news/articles/2104/27/news059.html	applewatch	2021-04-27 05:10:00
AWS	AWS Government, Education, and Nonprofits Blog	Advice for transportation agencies and authorities seeking funding for innovation	https://aws.amazon.com/blogs/publicsector/advice-transportation-agencies-authorities-seeking-funding-innovation/	Advice for transportation agencies and authorities seeking funding for innovationInnovators in the transportation sector can seek additional sources of funding to help advance projects to improve safety efficiency system performance and infrastructure The US Department of Transportation USDOT offers state and local government funding opportunities through discretionary grant programs that encourage transportation agencies to think big Several AWS customers including the Contra Costa Transportation Authority and the Washington Department of Transportation WSDOT successfully won these highly competitive USDOT grants Learn from the collaborators on these projects including Haile Mark Haselkorn director of the University of Washington s Center for Collaborative Systems for Safety Security and Regional Resilience CoSSaR and Jimmy Kim head of business development for smart communities transportation and mobility at Verizon as they share their suggestions for crafting a successful application	2021-04-26 20:26:14
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	詳細ページに行くとき、テーブルがないとなります(Table not found; SQL statement:)	https://teratail.com/questions/335339?rss=all		2021-04-27 05:30:16
Ruby	Railsタグが付けられた新着投稿 - Qiita	[Rails]RuboCopの使い方を解説	https://qiita.com/Jackson123/items/1c490740cc2ddb06461a	RailsRuboCopの使い方を解説今回は以下の記事を参考にさせていただきました。	2021-04-27 05:03:49
海外TECH	Ars Technica	One in five Californian EV drivers revert to piston power—but why?	https://arstechnica.com/?p=1760187	study	2021-04-26 20:39:16
海外TECH	Ars Technica	New versions of macOS, watchOS, and tvOS hit supported devices today	https://arstechnica.com/?p=1760092	airtag	2021-04-26 20:16:56
海外TECH	DEV Community	Getting started with PostgreSQL Set Operators	https://dev.to/arctype/getting-started-with-postgresql-set-operators-406c	Getting started with PostgreSQL Set OperatorsPostgres offers set operators that make it easy to query and filter the results of searches from your database Set operators are used to join the results of two or more SELECT statements These operators are UNION UNION ALL INTERSECT and EXCEPTーeach can be used to construct queries across multiple tables and filter for the specific data that you need To return the combined results of two SELECT statements we use the UNION set operator This operator removes all the duplicates from the queried resultsーonly listing one row for each duplicated result To examine this behavior the UNION ALL set operator can be used as it retains duplicates in the final result The INTERSECT set operator only lists records that are shared by both SELECT queries and conversely the EXCEPT set operator removes the results from the second SELECT query Thus the INTERSECT and EXCEPT set operators are used to produce unduplicated results All set operators initially share the same degree of precedence except for INTERSECT which we ll discuss later Because parentheses are prioritized above dangling operators they can cause the order to differ Note ー All SELECT statements that are used with a SET operator must select the same number of columns The columns used in the display are obtained from the first query The column list data types must be implicitly convertible by Postgres Postgres does not perform implicit type conversion if the corresponding columns in the queries belong to different data types If a column in the first query of type INT and the corresponding column in the second query is of type CHAR Postgres will not perform an implicit conversionーinstead it will raise a type error To sort the result set positional ordering is used Set operators do not allow individual result set ordering At the end of the query ORDER BY can only appear once The order of the queries in UNION and INTERSECT operators is not important and doesn t change the final result UNION and INTERSECT operators are commutative UNION ALL has better performance compared to the UNION operator because resources are not used in filtering duplicates and sorting the results It is possible to use set operators as part of subqueries It is not possible to use set operators in SELECT statements containing TABLE collection expressions Creating TablesBefore we continue exploring the set operators we need to create tables that we will be using throught the tutorial DROP TABLE IF EXISTS top rated films CREATE TABLE top rated films title VARCHAR NOT NULL release year SMALLINT DROP TABLE IF EXISTS most popular films CREATE TABLE most popular films title VARCHAR NOT NULL release year SMALLINT INSERT INTO top rated films title release year VALUES Fast and furious The redemption Shooter INSERT INTO most popular films title release year VALUES American snipper Doulou continent Outpost Shooter UNIONPostgres displays the combined results from all of the compounded SELECT queries after removal of duplicate values and the results are sorted in ascending order when the UNION operator joins multiple SELECT queries SELECT FROM top rated filmsUNIONSELECT FROM most popular filmsNote ー the columns selected must be of the compatible data types otherwise Postgres throws a type error SELECT title FROM top rated filmsUNIONSELECT release year FROM most popular films errorUNION types character varying and smallint cannot be matched UNION ALLThe UNION and UNION ALL operators are similarーthe difference being that UNION ALL returns the result set without removing duplicates and sorting the data Check the query in the UNION section below Make sure to note the difference in the output that is generated without sorting and removal of duplicates SELECT FROM top rated filmsUNION ALLSELECT FROM most popular films INTERSECTTo display the common rows from both the select statements with no duplicates and with data arranged in sorted order the INTERSECT operator is used The shooter movie is returned because it is available in both top rated and most popular movie tables SELECT FROM most popular films INTERSECTSELECT FROM top rated films EXCEPTTo display rows that are present in the first query but absent in the second one the EXCEPT operator is used It returns no duplicates and the data is arranged in ascending order by default SELECT FROM most popular filmsEXCEPTSELECT FROM top rated films Using ORDER BY clause in SET operationsIn a query containing a compound SELECT statement the ORDER BY clause can only appear once at the end This indicates that individual SELECT statements cannot contain the ORDER BY clause Sorting is based on the columns that appear in the first SELECT query only It is recommended to sort compound queries using column positions The query below sorts the results from two departments and unifies them SELECT FROM most popular filmsUNION ALLSELECT FROM top rated filmsORDER BY title ConclusionNow that you have learned how to use Postgres set operators you can optimize your database queries with them to retrieve and compare data across different columnsーallowing for a more streamlined data retrieval process	2021-04-26 20:43:40
Apple	AppleInsider - Frontpage News	Want to protect your new AirTag? Here's the accessories you need	https://appleinsider.com/articles/21/04/26/want-to-protect-your-new-airtag-heres-the-accessories-you-need?utm_medium=rss	Want to protect your new AirTag Here x s the accessories you needIf you re buying an AirTag at launch you ll probably want to acquire a holder for the small tracker Here s a compilation of accessories for AirTag that you can buy to carry around and attach it to the things you don t want to lose AirTag s design is striking yet simple consisting of a round tag with a rim While the coin like device is beautifully crafted by Apple it differs from other trackers on the market as it doesn t include any built in attachment points Other tags from firms like Tile and Chipolo include holes and spaces to hook or tie the tags onto an item or keychain however AirTag doesn t offer this capability out of the box Naturally for an Apple device there s a large number of accessories already produced for the AirTag which can help you attach it to practically anything you want within reason Read more	2021-04-26 20:35:39
Apple	AppleInsider - Frontpage News	Apple adds AR Spaces feature to Clips, plans monthly content updates	https://appleinsider.com/articles/21/04/26/apple-adds-ar-spaces-feature-to-clips-plans-monthly-content-updates?utm_medium=rss	Apple adds AR Spaces feature to Clips plans monthly content updatesApple has updated the Clips video creation app with a new AR Spaces feature and says the platform will get monthly content updates going forward Credit AppleThe company on Tuesday updated its short video creation app Clips to version introducing a feature that will take advantage of LiDAR support on the iPhone Pro and the and iPad Pro models Read more	2021-04-26 20:25:35
Apple	AppleInsider - Frontpage News	Apple releases iOS 14.5 and iPadOS 14.5 with Apple Watch unlock, App Tracking Transparency	https://appleinsider.com/articles/21/04/26/apple-releases-ios-145-and-ipados-145-with-face-mask-unlock-app-tracking-transparency?utm_medium=rss	Apple releases iOS and iPadOS with Apple Watch unlock App Tracking TransparencyApple has released iOS and iPadOS with some of the biggest new features including App Tracking Transparency and easier iPhone unlocking when wearing a mask Apple released iOS and iPadOS iOS and iPadOS has seen a sporadic beta period over the past few weeks but is now available to the public These updates contain important user facing features and major changes to privacy control Read more	2021-04-26 20:56:47
Apple	AppleInsider - Frontpage News	Apple increases investment in US jobs to $430 billion over next five years	https://appleinsider.com/articles/21/04/26/apple-increases-investment-in-us-jobs-to-430-billion-over-next-five-years?utm_medium=rss	Apple increases investment in US jobs to billion over next five yearsApple has announced billion of investment in innovation across all states including funding a new North Carolina campus Apple is investing in jobs across all statesJust over halfway through the five year plan of US investments it announced in Apple is now to increase its targets Rather than billion by the company now plans to invest over in the next five years Aimed at supporting American innovation it s a increase which includes money for G and next generation silicon Read more	2021-04-26 20:48:42
海外TECH	Engadget	Lyft is selling its self-driving unit to Toyota for $550 million	https://www.engadget.com/lyft-sellss-level-5-self-driving-toyota-woven-planet-204353240.html	autonomous	2021-04-26 20:43:53
ニュース	BBC News - Home	Nazanin Zaghari-Ratcliffe sentenced to a year in Iran prison	https://www.bbc.co.uk/news/uk-56888938	activities	2021-04-26 20:18:13
ニュース	BBC News - Home	Covid: Boris Johnson's 'bodies pile high' comments prompt criticism	https://www.bbc.co.uk/news/uk-politics-56890714	rubbish	2021-04-26 20:38:09
ニュース	BBC News - Home	Crawley College: Man, 18, arrested after gunshots reported	https://www.bbc.co.uk/news/uk-england-sussex-56892589	crawley	2021-04-26 20:22:10
ニュース	BBC News - Home	Suffolk pub explosion: Heater 'was brought by customer'	https://www.bbc.co.uk/news/uk-england-suffolk-56889557	portable	2021-04-26 20:21:26
ニュース	BBC News - Home	Stylish Selby sees off Allen at World Championship	https://www.bbc.co.uk/sport/snooker/56893019	allen	2021-04-26 20:35:06
ビジネス	ダイヤモンド・オンライン - 新着記事	GAFAやテスラの株をあえて買わない理由、米国株投信の凄腕ファンドマネジャーに聞く - 有料記事限定公開	https://diamond.jp/articles/-/269180	奥野一成	2021-04-27 05:25:00
ビジネス	ダイヤモンド・オンライン - 新着記事	アプライド・マテリアルズ、ラムリサーチ…半導体業界がバブルではなく今後も有望な理由 - 決算直前　米国＆日本　最強の投資術	https://diamond.jp/articles/-/269179	三菱ufjモルガン	2021-04-27 05:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	京都市が内部告発裁判で勝った職員を結局処分！通報者保護「グレーゾーン」の怖さ - Diamond Premium News	https://diamond.jp/articles/-/269675	diamondpremiumnews	2021-04-27 05:17:00
ビジネス	ダイヤモンド・オンライン - 新着記事	上司と部下の「致命的なすれ違い」が生まれる4つのNGパターン - トンデモ人事部が会社を壊す	https://diamond.jp/articles/-/269564	防止	2021-04-27 05:15:00
ビジネス	ダイヤモンド・オンライン - 新着記事	残業代の未払い請求で「2年後に倒産」も!?経営者が絶対知っておくべき重要判例3選 - 社長が知るべき！労働法の新常識	https://diamond.jp/articles/-/269194	残業代の未払い請求で「年後に倒産」も経営者が絶対知っておくべき重要判例選社長が知るべき労働法の新常識昨年月の民法改正により、「賃金請求権の消滅時効」が年から年当面は年に延びた。	2021-04-27 05:10:00
ビジネス	ダイヤモンド・オンライン - 新着記事	ワクチン独り勝ちの英国に対する過度な「経済楽観論」が禁物の理由 - 政策・マーケットラボ	https://diamond.jp/articles/-/269721	世界経済	2021-04-27 05:05:00
ビジネス	電通報 | 広告業界動向とマーケティングのコラム・ニュース	フェムテックのトレンドから学ぶ、Z世代のセルフケアとは？	https://dentsu-ho.com/articles/7755	photoby	2021-04-27 06:00:00
ビジネス	電通報 | 広告業界動向とマーケティングのコラム・ニュース	どんなに多忙でも絶対に実践できるインプット術、教えます。	https://dentsu-ho.com/articles/7754	橋口幸生	2021-04-27 06:00:00
ビジネス	電通報 | 広告業界動向とマーケティングのコラム・ニュース	こどもになって、4メートルの自分に怒られてみた	https://dentsu-ho.com/articles/7751	真っ盛り	2021-04-27 06:00:00
ビジネス	電通報 | 広告業界動向とマーケティングのコラム・ニュース	アート×資本主義の未来とは？（椿昇×岩崎かおり）	https://dentsu-ho.com/articles/7717	dents	2021-04-27 06:00:00
ビジネス	不景気.com	パソナグループが11億円債権放棄、子会社「丹後王国」清算で - 不景気.com	https://www.fukeiki.com/2021/04/pasona-debt-waiver.html	債権放棄	2021-04-26 20:01:19
LifeHuck	ライフハッカー［日本版］	『Notion』の データベース機能を活用。タスクリストにフィルターを設定してみた【今日のライフハックツール】	https://www.lifehacker.jp/2021/04/lht_notion-database-tasklist.html	notion	2021-04-27 06:00:00
北海道	北海道新聞	イラン外相がイラク称賛　サウジ対話の「仲介役」	https://www.hokkaido-np.co.jp/article/537811/	称賛	2021-04-27 05:02:00
ビジネス	東洋経済オンライン	携帯ショップで｢スマホ販売拒否｣多発のなぜ 通信契約の有無で客を差別､揺らぐ｢完全分離｣ | 通信 | 東洋経済オンライン	https://toyokeizai.net/articles/-/424804?utm_source=rss&utm_medium=http&utm_campaign=link_back	東洋経済オンライン	2021-04-27 05:40:00
ビジネス	東洋経済オンライン	マネジャーがリーダーシップの邪魔をする理由 ビジョンなき大人が子どもの無力感を作り出す | リーダーシップ・教養・資格・スキル | 東洋経済オンライン	https://toyokeizai.net/articles/-/423948?utm_source=rss&utm_medium=http&utm_campaign=link_back	東洋経済オンライン	2021-04-27 05:10:00
IT	週刊アスキー	アップル、「macOS Big Sur 11.3」配信開始　M1版MacでiPhone用ゲームのサポート強化やハイバネーション対応	https://weekly.ascii.jp/elem/000/004/053/4053040/	iphone	2021-04-27 05:10:00