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データベースが苦手なわけを考えてみました。

データベースで消耗していた話
https://qiita.com/kaizen_nagoya/items/3fcae9270d706fd6deaf

Relational Data base

結局、なにがいいかがわからないままです。

Main FrameというIBM、富士通、日立、NECなどの大型コンピュータには、専用のDBがあり、データの移植性が悪かったのに対して、OracleなどのDBや、IBM DB2などのSQL対応のDBがもてはやされました。

結局、移植性の利点はわかりましたり、SQLの利点もわかりました。
Relational DBの良さは分からずじまいです。

SQL

Python で SQL
https://qiita.com/kaizen_nagoya/items/1a210fd10efaead88f68

MySQL はじめてがいつか覚えていません。ごめんなさい。
https://qiita.com/kaizen_nagoya/items/0dcfa3090b9e146218c7

PostgreSQL
https://qiita.com/kaizen_nagoya/items/df63bfec9ec17b2fa87a

Tesra: 社外取締役はいかがでしょう。転職
(31)https://qiita.com/kaizen_nagoya/items/a77a81da08b17194699f

O/IEC 9075-1:2023 Information technology — Database languages SQL Part 1: Framework (SQL/Framework)
https://www.iso.org/standard/76583.html

Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO/IEC 646, Information technology — ISO 7-bit coded character set for information interchange
ISO/IEC 9075-2, Information technology — Database languages — SQL — Part 2: Foundation (SQL/Foundation)
ISO/IEC 9075-3, Information technology — Database languages — SQL — Part 3: Call-Level Interface (SQL/CLI)
ISO/IEC 9075-4, Information technology — Database languages — SQL — Part 4: Persistent Stored Modules (SQL/PSM)
ISO/IEC 9075-9, Information technology — Database languages — SQL — Part 9: Management of External Data (SQL/MED)
ISO/IEC 9075-10, Information technology — Database languages — SQL — Part 10: Object Language Bindings (SQL/OLB)
ISO/IEC 9075-11, Information technology — Database languages — SQL — Part 11: Information and Definition Schemas (SQL/Schemata)
ISO/IEC 9075-13, Information technology — Database languages — SQL — Part 13: SQL Routines and Types Using the Java™ Programming Language (SQL/JRT)
ISO/IEC 9075-14, Information technology — Database languages — SQL — Part 14: XML-Related Specifications (SQL/XML)
ISO/IEC 9075-15, Information technology — Database languages — SQL — Part 15: Multidimensional Arrays (SQL/MDA)
ISO/IEC 9075-16, Information technology — Database languages — SQL — Part 16: Property Graph Queries (SQL/PGQ)
ISO/IEC 10646:2020, Information technology — Universal Multi-Octet Coded Character Set (UCS)
ISO/IEC 14651, Information technology — International string ordering and comparison — Method for comparing character strings and description of the common template tailorable ordering

@rana_kualu 2020年の開発者が知っておくべき11の必須技能」→回答編 → 並べ替え→項目合併(8項目)→内容追記。仮説(170)
https://qiita.com/kaizen_nagoya/items/39e1c69bddb8e608b42b

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