{"provider_name":"Hatena Blog","url":"https://htn20190109.hatenablog.com/entry/2020/10/17/024653","author_url":"https://blog.hatena.ne.jp/HTN20190109/","width":"100%","published":"2020-10-17 02:46:53","height":"190","blog_url":"https://htn20190109.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2020%2F10%2F17%2F024653\" title=\"\u30d7\u30e9\u30f3\u30ac\u30a4\u30c9 - HTN20190109\u306e\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>","categories":["DB"],"image_url":null,"author_name":"HTN20190109","provider_url":"https://hatena.blog","title":"\u30d7\u30e9\u30f3\u30ac\u30a4\u30c9","version":"1.0","type":"rich","description":"SQL\u6587\u3092\u5909\u66f4\u305b\u305a\u306b\u3001\u5b9f\u884c\u8a08\u753b\u3092\u4fee\u6b63\u3059\u308b\u6a5f\u80fd MySQL \u8abf\u3079\u305f\u9650\u308a\u306a\u3057 Oracle (19c) [1] \u30d7\u30e9\u30f3\u30b9\u30bf\u30d3\u30ea\u30c6\u30a3( \u30b9\u30c8\u30a2\u30c9\u30a2\u30a6\u30c8\u30e9\u30a4\u30f3 )\u203b\u30ec\u30ac\u30b7\u30fc\u306e\u305f\u3081\u3001SQL\u8a08\u753b\u7ba1\u7406\u3078\u306e\u79fb\u884c\u304c\u63a8\u5968\u3055\u308c\u308b -- \u691c\u8a3c\u65b9\u6cd5\u30b9\u30c8\u30a2\u30c9\u30a2\u30a6\u30c8\u30e9\u30a4\u30f3\u3067\u30d2\u30f3\u30c8\u53e5\u3092\u4f7f\u7528\u305b\u305a\u306b\u30d5\u30eb\u30b9\u30ad\u30e3\u30f3\u306e\u5b9f\u884c\u8a08\u753b\u3092\u4f5c\u6210\u3057\u3001\u610f\u56f3\u7684\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3057\u306a\u3044\u5b9f\u884c\u8a08\u753b\u3092\u5f37\u5236\u3059\u308b -- \u30c6\u30b9\u30c8\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210drop table tab1 purge;create table tab1(col1 int, col2 int);alter table tab1 add constraint tab1pk primary key(col\u2026","blog_title":"HTN20190109\u306e\u65e5\u8a18"}