{"id":200104,"date":"2025-05-06T11:29:51","date_gmt":"2025-05-06T03:29:51","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200104\/"},"modified":"2025-05-06T11:29:51","modified_gmt":"2025-05-06T03:29:51","slug":"mysql%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ad%98%e5%82%a8%e5%92%8c%e7%ae%a1%e7%90%86%e7%9a%84%e4%bc%98%e7%82%b9%e5%92%8c%e7%89%b9%e6%80%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200104\/","title":{"rendered":"MySQL\u7684\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u7684\u4f18\u70b9\u548c\u7279\u6027"},"content":{"rendered":"

<\/b> <\/p>\n

MySQL\u7684\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u7684\u4f18\u70b9\u548c\u7279\u6027<\/h1>\n

MySQL\uff0c\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u4ee5\u5176\u4f18\u52bf\u548c\u7279\u6027\u6210\u4e3a\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u9886\u57df\u7684\u70ed\u95e8\u9009\u62e9\u3002\u5b83\u5f00\u6e90\u3001\u8de8\u5e73\u53f0\uff0c\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u6570\u636e\u5b89\u5168\u6027\u4ee5\u53ca\u5f3a\u5927\u7684\u793e\u533a\u652f\u6301\u3002\u901a\u8fc7\u4f18\u5316\u7d22\u5f15\u3001\u67e5\u8be2\u548c\u7f13\u5b58\u673a\u5236\uff0cMySQL\u53ef\u663e\u8457\u63d0\u5347\u6570\u636e\u5e93\u8bbf\u95ee\u6548\u7387\u3002\u6b64\u5916\uff0c\u5176\u5b8c\u5584\u7684\u5b89\u5168\u529f\u80fd\uff0c\u5305\u62ec\u7528\u6237\u8eab\u4efd\u9a8c\u8bc1\u548c\u6570\u636e\u5907\u4efd\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u53ef\u9760\u3002MySQL\u7684\u751f\u6001\u7cfb\u7edf\u4e30\u5bcc\uff0c\u62e5\u6709\u4f17\u591a\u6269\u5c55\u548c\u5de5\u5177\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u4fbf\u5229\u3002<\/p>\n

MySQL\u5728\u6570\u636e\u5b58\u50a8\u4e0e\u7ba1\u7406\u4e2d\u7684\u4f18\u52bf\u4e0e\u7279\u70b9<\/h1>\n

MySQL\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7f51\u7ad9\u5f00\u53d1\u3001\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u7b49\u9886\u57df\u3002MySQL\u5177\u6709\u8bb8\u591a\u4f18\u52bf\u548c\u7279\u70b9\uff0c\u4f7f\u5176\u6210\u4e3a\u8bb8\u591a\u5f00\u53d1\u8005\u548c\u7ec4\u7ec7\u7684\u9996\u9009\u6570\u636e\u5e93\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

1. \u5f00\u653e\u6e90\u4ee3\u7801<\/h2>\n

MySQL\u662f\u4e00\u4e2a\u5f00\u6e90\u8f6f\u4ef6\uff0c\u9075\u5faaGNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\uff08GPL\uff09\u3002\u8fd9\u610f\u5473\u7740\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u514d\u8d39\u83b7\u5f97MySQL\u7684\u6e90\u4ee3\u7801\uff0c\u5e76\u4e14\u53ef\u4ee5\u81ea\u7531\u4fee\u6539\u548c\u5206\u53d1\u5b83\u3002\u5f00\u653e\u6e90\u4ee3\u7801\u4f7f\u5f97MySQL\u900f\u660e\u3001\u7075\u6d3b\uff0c\u7528\u6237\u53ef\u4ee5\u81ea\u5b9a\u4e49\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u4ee5\u6ee1\u8db3\u5176\u7279\u5b9a\u9700\u6c42\u3002<\/p>\n

2. \u8de8\u5e73\u53f0\u6027<\/h2>\n

MySQL\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u652f\u6301\u591a\u79cd\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5305\u62ecWindows\u3001Linux\u3001Unix\u7b49\u3002\u8fd9\u4f7f\u5f97MySQL\u53ef\u4ee5\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u8fd0\u884c\uff0c\u4e3a\u5f00\u53d1\u8005\u548c\u7ec4\u7ec7\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u548c\u9009\u62e9\u3002<\/p>\n

3. \u9ad8\u6027\u80fd<\/h2>\n

MySQL\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u5e93\u65f6\u8868\u73b0\u51fa\u8272\u3002\u5176\u9ad8\u6027\u80fd\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n

3.1 \u7d22\u5f15\u4f18\u5316<\/h3>\n

MySQL\u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u5982B-Tree\u7d22\u5f15\u3001\u54c8\u5e0c\u7d22\u5f15\u7b49\uff0c\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u9700\u6c42\u9009\u62e9\u6700\u9002\u5408\u7684\u7d22\u5f15\u7c7b\u578b\u3002\u4f18\u79c0\u7684\u7d22\u5f15\u8bbe\u8ba1\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\uff0c\u52a0\u5feb\u6570\u636e\u68c0\u7d22\u901f\u5ea6\u3002<\/p>\n

CREATE INDEX idx_name ON table_name (column_name);<\/pre>\n
3.2 \u67e5\u8be2\u4f18\u5316<\/h3>\n
MySQL\u4f18\u5316\u5668\u80fd\u591f\u6839\u636e\u67e5\u8be2\u6761\u4ef6\u548c\u6570\u636e\u91cf\u81ea\u52a8\u9009\u62e9\u6700\u4f18\u7684\u6267\u884c\u8ba1\u5212\uff0c\u6709\u6548\u5730\u51cf\u5c11\u67e5\u8be2\u65f6\u95f4\u3002\u901a\u8fc7\u5206\u6790\u8868\u7ed3\u6784\u548c\u67e5\u8be2\u8bed\u53e5\uff0c\u53ef\u4ee5\u4f7f\u7528EXPLAIN\u8bed\u53e5\u6765\u67e5\u770bMySQL\u7684\u6267\u884c\u8ba1\u5212\u3002<\/p>\n
EXPLAIN SELECT * FROM table_name WHERE column_name = 'value';<\/pre>\n
3.3 \u7f13\u5b58\u673a\u5236<\/h3>\n
MySQL\u652f\u6301\u67e5\u8be2\u7f13\u5b58\uff0c\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u7f13\u5b58\u5230\u5185\u5b58\u4e2d\uff0c\u63d0\u9ad8\u91cd\u590d\u67e5\u8be2\u7684\u6027\u80fd\u3002\u9002\u5f53\u914d\u7f6e\u7f13\u5b58\u5927\u5c0f\u548c\u6e05\u9664\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u6570\u636e\u5e93\u8bbf\u95ee\u538b\u529b\u3002<\/p>\n
SET GLOBAL query_cache_size = 1000000;<\/pre>\n
4. \u6570\u636e\u5b89\u5168\u6027<\/h2>\n
MySQL\u63d0\u4f9b\u591a\u79cd\u5b89\u5168\u6027\u529f\u80fd\uff0c\u4fdd\u62a4\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u4e0d\u53d7\u635f\u574f\u6216\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002\u5176\u4e2d\u5305\u62ec\uff1a<\/p>\n
4.1 \u7528\u6237\u8eab\u4efd\u9a8c\u8bc1<\/h3>\n
MySQL\u652f\u6301\u7528\u6237\u540d\u548c\u5bc6\u7801\u7684\u8ba4\u8bc1\u673a\u5236\uff0c\u786e\u4fdd\u53ea\u6709\u7ecf\u8fc7\u6388\u6743\u7684\u7528\u6237\u624d\u80fd\u8bbf\u95ee\u6570\u636e\u5e93\u3002\u7528\u6237\u53ef\u4ee5\u8bbe\u5b9a\u4e0d\u540c\u7684\u6743\u9650\u7ea7\u522b\uff0c\u5b9e\u73b0\u5bf9\u6570\u636e\u5e93\u7684\u7ec6\u7c92\u5ea6\u63a7\u5236\u3002<\/p>\n
CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';\nGRANT SELECT, INSERT ON database_name.* TO 'username'@'localhost';<\/pre>\n
4.2 \u6570\u636e\u5907\u4efd\u4e0e\u6062\u590d<\/h3>\n
MySQL\u63d0\u4f9b\u591a\u79cd\u5907\u4efd\u548c\u6062\u590d\u65b9\u6cd5\uff0c\u5305\u62ec\u7269\u7406\u5907\u4efd\u548c\u903b\u8f91\u5907\u4efd\u3002\u901a\u8fc7\u5b9a\u671f\u5907\u4efd\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u4e22\u5931\u6216\u635f\u574f\u65f6\u5feb\u901f\u6062\u590d\u6570\u636e\u3002<\/p>\n
mysqldump -u username -p database_name > backup.sql\nmysql -u username -p database_name < backup.sql<\/pre>\n
5. \u793e\u533a\u652f\u6301\u4e0e\u751f\u6001\u7cfb\u7edf<\/h2>\n
MySQL\u62e5\u6709\u5e9e\u5927\u7684\u5f00\u53d1\u8005\u793e\u533a\u548c\u652f\u6301\u56e2\u961f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5728\u793e\u533a\u4e2d\u83b7\u53d6\u6280\u672f\u652f\u6301\u3001\u66f4\u65b0\u65e5\u5fd7\u548c\u6587\u6863\uff0c\u89e3\u51b3\u9047\u5230\u7684\u95ee\u9898\u3002\u6b64\u5916\uff0cMySQL\u751f\u6001\u7cfb\u7edf\u4e30\u5bcc\uff0c\u6709\u8bb8\u591a\u6269\u5c55\u548c\u5de5\u5177\uff0c\u5982MySQL Workbench\u3001phpMyAdmin\u7b49\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u4e86\u66f4\u591a\u4fbf\u5229\u3002<\/p>\n
\u603b\u7684\u6765\u8bf4\uff0cMySQL\u4f5c\u4e3a\u4e00\u79cd\u5f00\u6e90\u3001\u8de8\u5e73\u53f0\u3001\u9ad8\u6027\u80fd\u548c\u5b89\u5168\u7684\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5177\u6709\u5f88\u591a\u4f18\u52bf\u548c\u7279\u70b9\uff0c\u9002\u7528\u4e8e\u4e2d\u5c0f\u578b\u548c\u5927\u578b\u5e94\u7528\u7a0b\u5e8f\u7684\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u9700\u6c42\u3002\u901a\u8fc7\u5408\u7406\u7684\u8bbe\u8ba1\u548c\u4f18\u5316\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5145\u5206\u53d1\u6325MySQL\u7684\u6f5c\u529b\uff0c\u6784\u5efa\u7a33\u5b9a\u9ad8\u6548\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u3002<\/p>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aMySQL\u7684\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u7684\u4f18\u70b9\u548c\u7279\u6027\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u6570\u636e\u7ba1\u7406,\u6570\u636e\u5b58\u50a8,\u4f18\u52bf\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
MySQL\u7684\u6570\u636e\u5b58\u50a8\u548c\u7ba1\u7406\u7684\u4f18\u70b9...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200104","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200104","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200104"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200104\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}