{"id":524,"date":"2017-12-15T10:34:45","date_gmt":"2017-12-15T02:34:45","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=524"},"modified":"2017-12-15T10:34:45","modified_gmt":"2017-12-15T02:34:45","slug":"mysqlcharset%e5%92%8ccollation%e7%9a%84%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=524","title":{"rendered":"MySql:charset\u548ccollation\u7684\u8bbe\u7f6e"},"content":{"rendered":"<p>MySql:charset\u548ccollation\u7684\u8bbe\u7f6e<\/p>\n<p>&nbsp;<\/p>\n<p>charset \u548c collation \u6709\u591a\u4e2a\u7ea7\u522b\u7684\u8bbe\u7f6e\uff1a\u670d\u52a1\u5668\u7ea7\u3001<a class=\"keylink\" href=\"https:\/\/www.2cto.com\/database\/\" target=\"_blank\" rel=\"noopener\">\u6570\u636e\u5e93<\/a>\u7ea7\u3001\u8868\u7ea7\u3001\u5217\u7ea7\u548c\u8fde\u63a5\u7ea7<\/p>\n<p>www.2cto.com<\/p>\n<p>1.\u670d\u52a1\u5668\u7ea7<\/p>\n<p>\u67e5\u770b\u8bbe\u7f6e\uff1ashow global variables like &#8216;character_set_server&#8217;; \u548c show global variables like &#8216;collation_server&#8217;;<\/p>\n<p>\u4fee\u6539\u8bbe\u7f6e\uff1a\u5728OPTION FILE \uff08\/etc\/<a class=\"keylink\" href=\"https:\/\/www.2cto.com\/database\/MySQL\/\" target=\"_blank\" rel=\"noopener\">mysql<\/a>\/my.cnf\uff09\u91cc\u8bbe\u7f6e\uff1a<\/p>\n<p>[mysqld]<\/p>\n<p>character_set_server=utf8<\/p>\n<p>collation_server=utf8_general_ci<\/p>\n<p>&nbsp;<\/p>\n<p>2. \u6570\u636e\u5e93\u7ea7<\/p>\n<p>\u67e5\u770b\u8bbe\u7f6e\uff1aselect * from information_schema.schemata where schema_name = &#8216;cookbook&#8217;;<\/p>\n<p>\u8bbe\u7f6e\uff1a<\/p>\n<p>1.\u82e5\u6ca1\u6709\u663e\u5f0f\u8bbe\u7f6e\uff0c\u5219\u81ea\u52a8\u4f7f\u7528\u670d\u52a1\u5668\u7ea7\u7684\u914d\u7f6e<\/p>\n<p>2.\u663e\u5f0f\u8bbe\u7f6e\uff1a\u5728\u521b\u5efa\u5e93\u65f6\u6307\u5b9a<\/p>\n<p>create database playUtf8 \u00a0DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci;<\/p>\n<p>www.2cto.com<\/p>\n<p>3.\u8868\u7ea7<\/p>\n<p>\u67e5\u770b\u8bbe\u7f6e\uff1ashow create table course;<\/p>\n<p>\u8bbe\u7f6e\uff1a<\/p>\n<p>1.\u82e5\u6ca1\u6709\u663e\u5f0f\u8bbe\u7f6e\uff0c\u5219\u81ea\u52a8\u4f7f\u7528\u6570\u636e\u5e93\u7ea7\u7684\u914d\u7f6e<\/p>\n<p>2.\u663e\u5f0f\u8bbe\u7f6e\uff1a\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a<\/p>\n<p>create table utf ( id int ) default charset=utf8 default collate=utf8_bin;<\/p>\n<p>&nbsp;<\/p>\n<p>4.\u5217\u7ea7<\/p>\n<p>\u67e5\u770b\u8bbe\u7f6e\uff1ashow create table course;<\/p>\n<p>\u8bbe\u7f6e\uff1a<\/p>\n<p>1.\u82e5\u6ca1\u6709\u663e\u5f0f\u8bbe\u7f6e\uff0c\u5219\u81ea\u52a8\u4f7f\u7528\u8868\u7ea7\u7684\u914d\u7f6e<\/p>\n<p>2.\u663e\u5f0f\u8bbe\u7f6e\uff1a<\/p>\n<p>&nbsp;<\/p>\n<p>CREATE TABLE Table1(column1 VARCHAR(5) CHARACTER SET latin1 COLLATE latin1_german1_ci);<\/p>\n<p>&nbsp;<\/p>\n<p>5.\u8fde\u63a5\u7ea7\u522b<\/p>\n<p>\u67e5\u770b\u8bbe\u7f6e\uff1a<\/p>\n<p>show variables like &#8216;character_set_client&#8217;; \u00a0# \u670d\u52a1\u7aef\u4f7f\u7528\u8fd9\u4e2a\u7f16\u7801\u6765\u7406\u89e3\u5ba2\u6237\u7aef\u53d1\u6765\u7684statements<\/p>\n<p>show variables like &#8216;character_set_connection&#8217; ; # \u6211\u8fd8\u4e0d\u77e5\u9053\u4ec0\u4e48\u610f\u601d\uff0c\u7b49\u770b\u4e86mysql<a class=\"keylink\" href=\"https:\/\/www.2cto.com\/ym\/\" target=\"_blank\" rel=\"noopener\">\u6e90\u7801<\/a>\u518d\u8bf4<\/p>\n<p>show variables like &#8216;character_set_results&#8217;; # \u670d\u52a1\u7aef\u4f7f\u7528\u8fd9\u4e2a\u7f16\u7801\u56de\u9001\u7ed3\u679c\u96c6\u548c\u9519\u8bef\u4fe1\u606f<\/p>\n<p>\u8bbe\u7f6e\uff1a<\/p>\n<p>\u5ba2\u6237\u7aef\u5728\u8fde\u63a5\u65f6\u53ef\u4ee5\u6307\u5b9a\u8fd9\u4e9b\u53c2\u6570\uff1b\u540c\u65f6\uff0c\u670d\u52a1\u7aef\u4e5f\u63d0\u4f9b\u4e86\u4e00\u4e2aGlobal\u8303\u56f4\u7684\u503c\uff0c\u5ba2\u6237\u7aef\u672a\u6307\u5b9a\u8fd9\u4e9b\u53c2\u6570\u65f6\uff0c\u670d\u52a1\u7aef\u5c31\u4f7f\u7528\u8fd9\u4e2aGlobal\u503c\u3002\u8fd9\u4e2aglobal\u503c\u600e\u4e48\u8bbe\u7f6e\u7684\uff1f\u3000\u6211\u67e5\u904d\u4e86\u5f88\u591a\u6587\u6863\uff0c\u4f3c\u4e4e\u8fd8\u6ca1\u770b\u5230\u8bbe\u7f6e\u7684\u529e\u6cd5\u3000\uff08\u6709\u4eba\u8bf4\u901a\u8fc7my.cnf\uff0c\u6216\u8005\u5728\u542f\u52a8mysqld\u65f6\u6307\u5b9a\u547d\u4ee4\u884c\u53c2\u6570\uff0c\u5176\u5b9e\u90fd\u662f\u9519\u7684\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>\u9644\uff1aconnector\/j\u4f20\u8f93SQL\u65f6\u7528\u4ec0\u4e48\u7f16\u7801\uff1f<\/p>\n<p>\u7b54\u6848\uff1a &#8220;The character encoding between client and server is automatically detected upon connection. The encoding used by the driver is specified on the server using the character_set_server system variable for server versions 4.1.0 and newer.&#8221;<\/p>\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u662f\u5728\u8fde\u63a5\u65f6\u67e5\u8be2\u670d\u52a1\u5668\u7aef\u7684character_set_server\u503c\uff0c\u518d\u786e\u5b9a\u8fde\u63a5\u5c06\u4f7f\u7528\u7684\u7f16\u7801\u3002<\/p>\n<p>\u4e0d\u8fc7\uff0c\u5b98\u65b9\u6587\u6863\u8fd8\u8bf4\uff0c&#8221;\u8981\u60f3\u8986\u76d6\u5ba2\u6237\u7aef\u4e0a\u7684\u81ea\u52a8\u68c0\u6d4b\u7f16\u7801\u529f\u80fd\uff0c\u53ef\u5728\u7528\u4e8e\u8fde\u63a5\u5230\u670d\u52a1\u5668\u7684URL\u4e2d\u4f7f\u7528\u201ccharacterEncoding\u201d\u5c5e\u6027\u3002&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySql:charset\u548ccollation\u7684\u8bbe\u7f6e &nbsp; charset \u548c collation \u6709\u591a\u4e2a\u7ea7\u522b\u7684\u8bbe\u7f6e\uff1a\u670d\u52a1\u5668\u7ea7\u3001\u6570\u636e\u5e93\u7ea7\u3001\u8868\u7ea7\u3001\u5217\u7ea7\u548c\u8fde\u63a5\u7ea7 www.2cto.com 1.\u670d\u52a1\u5668\u7ea7 \u67e5\u770b\u8bbe\u7f6e\uff1ashow global variables like &#8216;character_set_server&#8217;; \u548c show global variables like &#8216;collation_server&#8217;; \u4fee\u6539\u8bbe\u7f6e\uff1a\u5728OPTION [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-524","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=524"}],"version-history":[{"count":0,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/524\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}