{"type":"rich","author_name":"ryuichi1208","author_url":"https://blog.hatena.ne.jp/ryuichi1208/","height":"190","title":"\u3010MySQL\u3011mysql can't reopen union ","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fryuichi1208.hateblo.jp%2Fentry%2F2023%2F11%2F03%2F222522\" title=\"\u3010MySQL\u3011mysql can&#39;t reopen union  - \u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://ryuichi1208.hateblo.jp/","width":"100%","blog_title":"\u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18","provider_url":"https://hatena.blog","image_url":null,"version":"1.0","categories":[],"published":"2023-11-03 22:25:22","description":"MySQL\u306e\u4ed5\u69d8\u3068\u3057\u3066\u4e00\u6642\u30c6\u30fc\u30d6\u30eb\u306f\u30c6\u30fc\u30d6\u30eb\u3092\u518d\u30aa\u30fc\u30d7\u30f3\u3067\u304d\u306a\u3044\u306e\u3067\u4e00\u3064\u306e\u30af\u30a8\u30ea\u5185\u3067\u306f\u8907\u6570\u56de\u53c2\u7167\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002 mysql> desc employee_table; +---------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------+--------------+------+-----+---------+----------------+ | ID | int | NO \u2026","url":"https://ryuichi1208.hateblo.jp/entry/2023/11/03/222522"}