{"id":75978,"date":"2024-10-16T02:50:15","date_gmt":"2024-10-15T18:50:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75978\/"},"modified":"2024-10-16T02:50:15","modified_gmt":"2024-10-15T18:50:15","slug":"mysql-%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e5%95%8f%e9%a1%8c%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75978\/","title":{"rendered":"MySQL \u8907\u88fd\u8868\u7d50\u69cb\u554f\u984c\u7684\u89e3\u6c7a\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"mysql-%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e5%95%8f%e9%a1%8c%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95-HChXNXYFCw\">MySQL \u8907\u88fd\u8868\u7d50\u69cb\u554f\u984c\u7684\u89e3\u6c7a\u65b9\u6cd5<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u6642\uff0c\u8907\u88fd\u8868\u7d50\u69cb\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u70ba\u4e86\u5099\u4efd\u3001\u6e2c\u8a66\u9084\u662f\u6578\u64da\u9077\u79fb\uff0c\u6b63\u78ba\u5730\u8907\u88fd\u8868\u7d50\u69cb\u90fd\u80fd\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u7136\u800c\uff0c\u5728\u9019\u500b\u904e\u7a0b\u4e2d\uff0c\u4f7f\u7528\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e MySQL \u8907\u88fd\u8868\u7d50\u69cb\u7684\u5e38\u898b\u554f\u984c\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%b8%80%e3%80%81%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-HChXNXYFCw\">\u4e00\u3001\u8907\u88fd\u8868\u7d50\u69cb\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u8907\u88fd\u8868\u7d50\u69cb\u7684\u6700\u57fa\u672c\u65b9\u6cd5\u662f\u4f7f\u7528 <code>CREATE TABLE<\/code> \u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE new_table LIKE original_table;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u6703\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>new_table<\/code> \u7684\u65b0\u8868\uff0c\u5176\u7d50\u69cb\u8207 <code>original_table<\/code> \u5b8c\u5168\u76f8\u540c\uff0c\u4f46\u4e0d\u6703\u8907\u88fd\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%ba%8c%e3%80%81%e5%b8%b8%e8%a6%8b%e5%95%8f%e9%a1%8c%e5%8f%8a%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95-HChXNXYFCw\">\u4e8c\u3001\u5e38\u898b\u554f\u984c\u53ca\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e8%a4%87%e8%a3%bd%e5%be%8c%e7%9a%84%e8%a1%a8%e7%bc%ba%e5%b0%91%e7%b4%a2%e5%bc%95-HChXNXYFCw\">1. \u8907\u88fd\u5f8c\u7684\u8868\u7f3a\u5c11\u7d22\u5f15<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528 <code>CREATE TABLE ... LIKE<\/code> \u53ef\u80fd\u6703\u5c0e\u81f4\u65b0\u8868\u7f3a\u5c11\u67d0\u4e9b\u7d22\u5f15\u3002\u9019\u662f\u56e0\u70ba\u67d0\u4e9b\u7d22\u5f15\u53ef\u80fd\u4e0d\u6703\u88ab\u8907\u88fd\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u53ef\u4ee5\u624b\u52d5\u6dfb\u52a0\u7d22\u5f15\uff1a<\/p>\n<pre><code>ALTER TABLE new_table ADD INDEX index_name (column_name);<\/code><\/pre>\n<h3 id=\"2-%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e6%99%82%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e4%b8%8d%e4%b8%80%e8%87%b4-HChXNXYFCw\">2. \u8907\u88fd\u8868\u7d50\u69cb\u6642\u7684\u6578\u64da\u985e\u578b\u4e0d\u4e00\u81f4<\/h3>\n<p>\u5728\u8907\u88fd\u8868\u7d50\u69cb\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u6578\u64da\u985e\u578b\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4f7f\u7528\u4e0d\u540c\u7248\u672c\u7684 MySQL \u6642\u3002\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u5efa\u8b70\u5728\u8907\u88fd\u8868\u7d50\u69cb\u4e4b\u524d\uff0c\u5148\u6aa2\u67e5\u539f\u8868\u7684\u6578\u64da\u985e\u578b\uff1a<\/p>\n<pre><code>SHOW COLUMNS FROM original_table;<\/code><\/pre>\n<p>\u7136\u5f8c\u6839\u64da\u9700\u8981\u624b\u52d5\u8abf\u6574\u65b0\u8868\u7684\u6578\u64da\u985e\u578b\u3002<\/p>\n<h3 id=\"3-%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e5%be%8c%e7%9a%84%e5%a4%96%e9%8d%b5%e7%b4%84%e6%9d%9f%e5%95%8f%e9%a1%8c-HChXNXYFCw\">3. \u8907\u88fd\u8868\u7d50\u69cb\u5f8c\u7684\u5916\u9375\u7d04\u675f\u554f\u984c<\/h3>\n<p>\u5982\u679c\u539f\u8868\u4e2d\u6709\u5916\u9375\u7d04\u675f\uff0c\u9019\u4e9b\u7d04\u675f\u4e0d\u6703\u81ea\u52d5\u8907\u88fd\u5230\u65b0\u8868\u4e2d\u3002\u70ba\u4e86\u624b\u52d5\u6dfb\u52a0\u5916\u9375\u7d04\u675f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE new_table ADD CONSTRAINT fk_name FOREIGN KEY (column_name) REFERENCES other_table (other_column);<\/code><\/pre>\n<h3 id=\"4-%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e6%99%82%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86%e5%95%8f%e9%a1%8c-HChXNXYFCw\">4. \u8907\u88fd\u8868\u7d50\u69cb\u6642\u7684\u5b57\u7b26\u96c6\u554f\u984c<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u8907\u88fd\u7684\u8868\u53ef\u80fd\u6703\u4f7f\u7528\u4e0d\u540c\u7684\u5b57\u7b26\u96c6\u3002\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u5b58\u5132\u4e0d\u6b63\u78ba\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u8a9e\u53e5\u6aa2\u67e5\u548c\u8a2d\u7f6e\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW TABLE STATUS LIKE 'new_table';<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\u66f4\u6539\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>ALTER TABLE new_table CONVERT TO CHARACTER SET utf8mb4;<\/code><\/pre>\n<h2 id=\"%e4%b8%89%e3%80%81%e4%bd%bf%e7%94%a8%e5%b7%a5%e5%85%b7%e8%bc%94%e5%8a%a9%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b-HChXNXYFCw\">\u4e09\u3001\u4f7f\u7528\u5de5\u5177\u8f14\u52a9\u8907\u88fd\u8868\u7d50\u69cb<\/h2>\n<p>\u9664\u4e86\u624b\u52d5\u64cd\u4f5c\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5de5\u5177\u4f86\u8f14\u52a9\u8907\u88fd\u8868\u7d50\u69cb\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 MySQL Workbench \u6216 phpMyAdmin \u7b49\u5de5\u5177\uff0c\u53ef\u4ee5\u66f4\u76f4\u89c0\u5730\u9032\u884c\u8868\u7d50\u69cb\u7684\u8907\u88fd\u548c\u4fee\u6539\u3002\u9019\u4e9b\u5de5\u5177\u901a\u5e38\u63d0\u4f9b\u4e86\u5716\u5f62\u754c\u9762\uff0c\u65b9\u4fbf\u7528\u6236\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-HChXNXYFCw\">\u7e3d\u7d50<\/h2>\n<p>\u5728 MySQL \u4e2d\u8907\u88fd\u8868\u7d50\u69cb\u96d6\u7136\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u64cd\u4f5c\uff0c\u4f46\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u554f\u984c\u3002\u901a\u904e\u4e86\u89e3\u5e38\u898b\u554f\u984c\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\uff0c\u7528\u6236\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u7d50\u69cb\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4f86\u904b\u884c\u60a8\u7684 MySQL \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u9084\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u5f37\u6709\u529b\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u89e3\u6c7aMySQL\u8907\u88fd\u8868\u7d50\u69cb\u554f\u984c\u7684\u65b9\u6cd5\uff0c\u8f15\u9b06\u638c\u63e1\u6578\u64da\u5eab\u7ba1\u7406\u6280\u5de7\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-75978","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=75978"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75978\/revisions"}],"predecessor-version":[{"id":75979,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75978\/revisions\/75979"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}