Recipes for Swift vs RDB情報

A reference of everyday Swift, from strings and collections to protocols and design patterns. Every example comes with an explanation, and most of them run. • 25 sections: simple types, arrays and collections, classes and structs, protocols and generics, functions and closures, files, serialization, error handling, regular expressions, concurrency, extensions, patterns. • Run in the app: the example really executes and the output appears under the code. Needs an internet connection. • What changed in new versions: 19 sections from Swift 2.0 to 6.2, with "before" and "after" code side by side. • Keyword and function reference: 228 articles, fully open with no daily counter. • SQL alongside: over 200 queries against a live practice database - JOIN, GROUP BY, subqueries, data types. • Edit examples and add your own - they stay in the app and are always at hand. • Search runs over the code itself, not just the titles: remember a fragment and you will find the example. • Everything except running works offline. No account needed. WHAT THE FREE VERSION INCLUDES 12 runs and 12 edits a day - the counter resets every morning. The keyword reference is open without limits. Up to 5 examples of your own. Copying in the free app is blocked after five attempts. The full version opens every example, removes the daily limits and raises running to 30 launches a day. One purchase, no subscription. Made by a developer for developers. In development since 2015.

RDB（リレーショナルデータベース）にクエリ（問い合わせ）を行い、結果を返します。 SQLiteのDBを取り込み情報を表示します。 取り込んだSQL文を修正して実行できます。