{"provider_name":"Hatena Blog","published":"2022-10-06 01:51:12","blog_title":"HTN20190109\u306e\u65e5\u8a18","url":"https://htn20190109.hatenablog.com/entry/2022/10/06/015112","title":"varchar\u6700\u5927\u9577","blog_url":"https://htn20190109.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2022%2F10%2F06%2F015112\" title=\"varchar\u6700\u5927\u9577 - 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>","height":"190","width":"100%","image_url":null,"type":"rich","categories":["DB"],"version":"1.0","author_name":"HTN20190109","author_url":"https://blog.hatena.ne.jp/HTN20190109/","provider_url":"https://hatena.blog","description":"MySQL : 16383\u6587\u5b57Oracle : 4000\u30d0\u30a4\u30c8 or 32767\u30d0\u30a4\u30c8PosgreSQL : 10485760\u6587\u5b57SQL Server : 8000\u30d0\u30a4\u30c8 MySQL (8.0.29) VARCHAR\u306f\u30d0\u30a4\u30c8\u3067\u306e\u4e0a\u9650\u304c65535\u30d0\u30a4\u30c8\u3002\u6587\u5b57\u30bb\u30c3\u30c8\u304cutf8mb4\u306e\u5834\u5408\u306f\u3001\u4e0a\u9650\u304c16383\u6587\u5b57\u3068\u306a\u308b\u3002 VARCHAR \u30ab\u30e9\u30e0\u5185\u306e\u5024\u306f\u53ef\u5909\u9577\u306e\u6587\u5b57\u5217\u3067\u3059\u3002 \u9577\u3055\u306f 0 \u304b\u3089 65,535 \u307e\u3067\u306e\u5024\u3067\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002 VARCHAR \u30ab\u30e9\u30e0\u306e\u6709\u52b9\u306a\u6700\u5927\u9577\u306f\u3001\u6700\u5927\u884c\u30b5\u30a4\u30ba (65,535 \u30d0\u30a4\u30c8\u3001\u3059\u3079\u3066\u306e\u30ab\u30e9\u30e0\u3067\u5171\u6709\u3055\u308c\u308b) \u3068\u4f7f\u7528\u3055\u308c\u308b\u6587\u5b57\u30bb\u30c3\u30c8\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u3002 show varia\u2026"}