{"id":116,"date":"2020-10-08T10:09:35","date_gmt":"2020-10-08T01:09:35","guid":{"rendered":"http:\/\/www.te9te9.com\/?p=116"},"modified":"2020-10-11T09:22:05","modified_gmt":"2020-10-11T00:22:05","slug":"mysql%e3%81%aevarchara%e3%81%a7%e5%a4%a7%e3%81%8d%e3%81%aa%e6%9c%80%e5%a4%a7%e5%80%a4%e3%82%92%e8%a8%ad%e5%ae%9a%e3%81%97%e3%81%9f%e3%81%a8%e3%81%8d%e3%81%ae%e5%b0%82%e6%9c%89%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.te9te9.com\/?p=116","title":{"rendered":"MySQL:varchar\u578b\u306e\u5c02\u6709\u3059\u308b\u5927\u304d\u3055\u306b\u3064\u3044\u3066"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u8a2d\u8a08\u3067varchar\u578b\u3092\u4f7f\u7528\u3057\u307e\u3059\u304c\u3001\u305d\u306e\u8a2d\u5b9a\u5024\u306b\u95a2\u3059\u308b\u8a18\u4e8b\u3067\u3059\u3002varchar\u578b\u306b\u5927\u304d\u306a\u6700\u5927\u5024\u3092\u8a2d\u5b9a\u3057\u305f\u3068\u304d\u306b\u5c02\u6709\u3059\u308b\u5bb9\u91cf\u306f\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>\u8272\u3005\u8003\u3048\u305f\u7d50\u679c\u3001\u5bb9\u91cf\u7bc0\u7d04\u306e\u305f\u3081\u306b\u4f59\u88d5\u306a\u304f\u30ae\u30c1\u30ae\u30c1\u306b\u8a2d\u5b9a\u3057\u305f\u308a\u3001\u4f59\u88d5\u3092\u8003\u3048\u3066\u5927\u304d\u304f\u8a2d\u8a08\u3057\u305f\u308a\u3068\u60a9\u307f\u3069\u3053\u308d\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30ae\u30c1\u30ae\u30c1\u306b\u8a2d\u8a08\u3057\u3059\u308b\u3068\u3001\u5f8c\u3005\u62e1\u5f35\u306e\u5fc5\u8981\u6027\u304c\u51fa\u305f\u308a\u3082\u3057\u307e\u3059\u3002\u4f59\u88d5\u3092\u898b\uff08\u904e\u304e\uff09\u3066\u8a2d\u8a08\u3059\u308b\u3068\u305d\u3093\u306a\u306b\u5165\u529b\u6587\u5b57\u6570\u306f\u3044\u3089\u306a\u304b\u3063\u305f\u30fb\u30fb\u30fb\u3053\u3093\u306a\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3055\u3066\u3001varchara\u578b\u306f\u3069\u306e\u3088\u3046\u306b\u632f\u308b\u821e\u3046\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">varchar(1000)<\/code><\/span><\/pre>\n\n\n<p>\u307e\u305a\u3001varchar\u306e\u6570\u5b57\u306e\u610f\u5473\u3067\u3059\u304c\u30011,000\u306f1,000\u6587\u5b57\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u6587\u5b57\u30b3\u30fc\u30c9\u6bce\u306e1\u6587\u5b57\u3092\u8868\u3059\u30c7\u30fc\u30bf\u306e\u5927\u304d\u3055\u306f\u95a2\u4fc2\u3042\u308a\u307e\u305b\u3093\u3002Unicode\uff084Byte\uff09\u3067\u3082SJIS\uff082Byte\uff09\u3067\u3082\u7b49\u3057\u304f1,000\u6587\u5b57\u5165\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3067\u306f\u6b21\u306b\u300c\u306f\u3044\u300d\u306e\u4e8c\u6587\u5b57\u3060\u3051\u683c\u7d0d\u3057\u305f\u6642\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u9818\u57df\u306f\u3069\u306e\u3088\u3046\u306b\u78ba\u4fdd\u3055\u308c\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n\n<p>\u3053\u306e\u5834\u5408\u30012\u6587\u5b57\u5206\u306e\u9818\u57df\u306e\u307f\u78ba\u4fdd\u3055\u308c\u307e\u3059\u3002\u5fc5\u305a1,000\u6587\u5b57\u5206\u306e\u9818\u57df\u3092\u78ba\u4fdd\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u4f59\u88d5\u3092\u6301\u3063\u305f\u8a2d\u5b9a\u306b\u3057\u3066\u3082\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5bb9\u91cf\u3092\u4e0d\u5fc5\u8981\u306b\u5727\u8feb\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<p>Unicode\u306a\u3089\u30014Byte\u00d72\u6587\u5b57\uff1d8Byte<br>SJIS\u306a\u3089\u30012Byte\u00d72\u6587\u5b57\uff1d4Byte<\/p>\n\n\n\n<p>varchar\u306f\u540d\u524d\u304b\u3089\u3082\u201d\u53ef\u5909\u9577\u306e\u6587\u5b57\u5217\u201d\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u81e8\u6a5f\u5fdc\u5909\u306b\u5bfe\u5fdc\u3057\u3066\u304f\u308c\u308b\u512a\u308c\u305f\u30c7\u30fc\u30bf\u578b\u3067\u3059\u3002<\/p>\n\n\n\n<p>CHAR\u578b\u3068VARCHAR\u578b\uff1aDBOnline<br><a href=\"https:\/\/www.dbonline.jp\/mysql\/type\/index3.html\">https:\/\/www.dbonline.jp\/mysql\/type\/index3.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u8a2d\u8a08\u3067varchar\u578b\u3092\u4f7f\u7528\u3057\u307e\u3059\u304c\u3001\u305d\u306e\u8a2d\u5b9a\u5024\u306b\u95a2\u3059\u308b\u8a18\u4e8b\u3067\u3059\u3002varchar\u578b\u306b\u5927\u304d\u306a\u6700\u5927\u5024\u3092\u8a2d\u5b9a\u3057\u305f\u3068\u304d\u306b\u5c02\u6709\u3059\u308b\u5bb9\u91cf\u306f\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8,9],"tags":[],"class_list":["post-116","post","type-post","status-publish","format-standard","hentry","category-database","category-mysql"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.te9te9.com\/index.php?rest_route=\/wp\/v2\/posts\/116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.te9te9.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.te9te9.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.te9te9.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.te9te9.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=116"}],"version-history":[{"count":11,"href":"https:\/\/www.te9te9.com\/index.php?rest_route=\/wp\/v2\/posts\/116\/revisions"}],"predecessor-version":[{"id":250,"href":"https:\/\/www.te9te9.com\/index.php?rest_route=\/wp\/v2\/posts\/116\/revisions\/250"}],"wp:attachment":[{"href":"https:\/\/www.te9te9.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.te9te9.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.te9te9.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}