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SQL フィドル（データベースシステム概論）

Japanese This item is in Japanese.

ブラウザだけで動く日本語 SQL 練習場（ER図つき）

Description excerpted from the original listing, which is linked below.

Open it Listing Source code Open in English

The English version is the original site passed through Google Translate. Nothing is translated or stored here.

Facts

Published: 29 Sep 2026 (21d ago)
Medium: web
Language: Japanese (the page says so itself)
Subject: Data and research (read from the page)
Creator: Msk7000
First seen: 29 Sep 2026, 05:40 UTC

Built with

Not known. Nothing about this item shows which tool wrote it, and we would rather say so than guess.

Runs on

Static site: declared by the platform of origin

What we can see

77 hygiene score

Certificate issued by Amazon RSA 2048 M01, 106 days remaining
Cookie attributes no cookies set
Credentials and payment does not ask for either
Strict transport security set
Served over HTTPS
Mail authentication neither published
No insecure resources
Redirects 1
Security headers 1 of 5 set
Third-party origins 2
Transport security TLS 1.3

Observed 29 Sep 2026 by fetching the page as a browser would. This describes hygiene and transparency, not safety: a missing header does not make a site dangerous, and a complete set does not make it trustworthy.

Made this?

Show it on your own site or README. It links back to this page.

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For a web page

<a href="https://bitsexplorer.com/i/1027983/sql"><img src="https://bitsexplorer.com/badge/1027983.svg" alt="Featured on BitsExplorer" height="22"></a>

For a README (Markdown)

[![Featured on BitsExplorer](https://bitsexplorer.com/badge/1027983.svg)](https://bitsexplorer.com/i/1027983/sql)

Changes we have seen

29 Sep 2026 first indexed

SQL フィドル（データベースシステム概論）

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