{"categories":["SQL","MySQL","MariaDB"],"description":"mysql \u3067\u30c6\u30fc\u30d6\u30eb\u306e\u7d22\u5f15\u304c\u3069\u3046\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u77e5\u308a\u305f\u3044\u3068\u304d\u304c\u3042\u308b\u3068\u601d\u3046\u306e\u3067\u3059\u304c\u3002\u305d\u306e\u5834\u5408\u3001 mysql> show index from TABLE_NAME; \u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059 \u3067\u308f\u3001\u30b9\u30ad\u30fc\u30de\u5185\u306e\u5168\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u7d22\u5f15\u3092\u629c\u304d\u51fa\u3057\u305f\u3044\u5834\u5408\u306f\u3069\u3046\u3059\u308b\u304b\uff1f \u3068\u3044\u3046\u308f\u3051\u3067information_schema\u3092\u5229\u7528\u3057\u3066\u5bfe\u8c61\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u5168\u3066\u306e\u7d22\u5f15\u3092\u4e00\u62ec\u3067\u62bd\u51fa\u3059\u308bSQL\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u305f\u3002 \u7d22\u5f15\u306e\u60c5\u5831\u306f\u3001information_schema.STATISTICS\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u3089\u3057\u304f\u3001\u4ee5\u4e0b\u306eSQL\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002 \u3010\u5b63\u7bc0\u6027\u30a4\u30f3\u30d5\u30eb\u30a8\u30f3\u30b6\u4e88\u9632\u306b\u3082\u3011 TANITA \u30c7\u30b8\u30bf\u30eb\u6e29\u6e7f\u5ea6\u8a08 (\u5ba4\u5185\u7528\u2026","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/hit10231023/20180309/20180309104332.jpg","author_url":"https://blog.hatena.ne.jp/hit10231023/","url":"https://hit.hateblo.jp/entry/2016/05/02/124019","title":"MySQL \u30b9\u30ad\u30fc\u30de\u5185\u306b\u5b58\u5728\u3059\u308b\u5168\u3066\u306e\u7d22\u5f15\u3092\u4e00\u62ec\u3067\u62bd\u51fa\u3059\u308bSQL","author_name":"hit10231023","published":"2016-05-02 12:40:19","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhit.hateblo.jp%2Fentry%2F2016%2F05%2F02%2F124019\" title=\"MySQL \u30b9\u30ad\u30fc\u30de\u5185\u306b\u5b58\u5728\u3059\u308b\u5168\u3066\u306e\u7d22\u5f15\u3092\u4e00\u62ec\u3067\u62bd\u51fa\u3059\u308bSQL - Database JUNKY\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_title":"Database JUNKY","version":"1.0","height":"190","blog_url":"https://hit.hateblo.jp/","type":"rich","provider_url":"https://hatena.blog"}