{"id":196265,"date":"2024-11-13T21:50:22","date_gmt":"2024-11-13T13:50:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196265\/"},"modified":"2024-11-13T21:50:23","modified_gmt":"2024-11-13T13:50:23","slug":"%e9%80%998%e5%80%8bmysql%e9%99%b7%e9%98%b1%ef%bc%8c%e4%bd%a0%e4%b8%80%e5%ae%9a%e5%be%97%e5%a4%9a%e5%a4%9a%e6%b3%a8%e6%84%8f%e4%ba%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196265\/","title":{"rendered":"\u90198\u500bMySQL\u9677\u9631\uff0c\u4f60\u4e00\u5b9a\u5f97\u591a\u591a\u6ce8\u610f\u4e86~"},"content":{"rendered":"

\u90198\u500bMySQL\u9677\u9631\uff0c\u4f60\u4e00\u5b9a\u5f97\u591a\u591a\u6ce8\u610f\u4e86~<\/h1>\n

MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u96d6\u7136MySQL\u529f\u80fd\u5f37\u5927\uff0c\u4f46\u5728\u4f7f\u7528\u904e\u7a0b\u4e2d\u4e5f\u5b58\u5728\u4e00\u4e9b\u5e38\u898b\u7684\u9677\u9631\uff0c\u9019\u4e9b\u9677\u9631\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u6216\u6578\u64da\u640d\u58de\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u516b\u500b\u9700\u8981\u7279\u5225\u6ce8\u610f\u7684MySQL\u9677\u9631\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u907f\u514d\u5e38\u898b\u7684\u932f\u8aa4\u3002<\/p>\n

1. \u5ffd\u7565\u7d22\u5f15\u7684\u4f7f\u7528<\/h2>\n

\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u95dc\u9375\uff0c\u4f46\u904e\u5ea6\u6216\u4e0d\u7576\u4f7f\u7528\u7d22\u5f15\u4e5f\u6703\u5f71\u97ff\u6027\u80fd\u3002\u672a\u80fd\u70ba\u5e38\u7528\u67e5\u8a62\u5275\u5efa\u7d22\u5f15\uff0c\u6703\u5c0e\u81f4\u5168\u8868\u6383\u63cf\uff0c\u5f9e\u800c\u589e\u52a0\u67e5\u8a62\u6642\u9593\u3002\u76f8\u53cd\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u589e\u52a0\u5beb\u5165\u64cd\u4f5c\u7684\u6210\u672c\uff0c\u56e0\u70ba\u6bcf\u6b21\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\u6642\u90fd\u9700\u8981\u66f4\u65b0\u7d22\u5f15\u3002<\/p>\n

CREATE INDEX idx_name ON users(name);<\/code><\/pre>\n
2. \u4e0d\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\u9078\u64c7<\/h2>\n
\u9078\u64c7\u4e0d\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u6703\u5c0e\u81f4\u5b58\u5132\u7a7a\u9593\u6d6a\u8cbb\u548c\u6027\u80fd\u554f\u984c\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u53ea\u9700\u5b58\u5132\u5c0f\u7bc4\u570d\u6574\u6578\u7684\u5b57\u6bb5\uff0c\u4f7f\u7528INT\u985e\u578b\u6703\u6bd4\u4f7f\u7528TINYINT\u6d6a\u8cbb\u66f4\u591a\u7684\u7a7a\u9593\u3002\u5408\u7406\u9078\u64c7\u6578\u64da\u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u4e26\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u3002<\/p>\n
3. \u5ffd\u8996\u4e8b\u52d9\u7684\u4f7f\u7528<\/h2>\n
\u5728\u9032\u884c\u591a\u500b\u76f8\u95dc\u64cd\u4f5c\u6642\uff0c\u672a\u4f7f\u7528\u4e8b\u52d9\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u4e00\u7d44\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\uff0c\u5f9e\u800c\u4fdd\u8b77\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/p>\n
START TRANSACTION;\nUPDATE accounts SET balance = balance - 100 WHERE user_id = 1;\nUPDATE accounts SET balance = balance + 100 WHERE user_id = 2;\nCOMMIT;<\/code><\/pre>\n
4. \u4e0d\u7576\u7684\u67e5\u8a62\u512a\u5316<\/h2>\n
\u67e5\u8a62\u512a\u5316\u662f\u63d0\u9ad8\u6027\u80fd\u7684\u95dc\u9375\u3002\u4f7f\u7528\u4e0d\u5fc5\u8981\u7684SELECT *\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\uff0c\u61c9\u8a72\u660e\u78ba\u6307\u5b9a\u6240\u9700\u7684\u5217\u3002\u6b64\u5916\uff0c\u4f7f\u7528JOIN\u6642\uff0c\u61c9\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u9023\u63a5\u689d\u4ef6\uff0c\u4ee5\u907f\u514d\u751f\u6210\u7b1b\u5361\u723e\u7a4d\u3002<\/p>\n
5. \u5ffd\u7565\u7de9\u5b58\u6a5f\u5236<\/h2>\n
MySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u7de9\u5b58\u6a5f\u5236\uff0c\u5982\u67e5\u8a62\u7de9\u5b58\u548cInnoDB\u7de9\u5b58\u3002\u672a\u80fd\u5229\u7528\u9019\u4e9b\u7de9\u5b58\u6a5f\u5236\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u5408\u7406\u914d\u7f6e\u7de9\u5b58\u53c3\u6578\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n
6. \u4e0d\u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7dad\u8b77<\/h2>\n
\u6578\u64da\u5eab\u9700\u8981\u5b9a\u671f\u7dad\u8b77\uff0c\u5305\u62ec\u91cd\u5efa\u7d22\u5f15\u548c\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002\u672a\u9032\u884c\u7dad\u8b77\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u548c\u6578\u64da\u5eab\u81a8\u8139\u3002\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316\u6578\u64da\u5eab\u53ef\u4ee5\u4fdd\u6301\u5176\u9ad8\u6548\u904b\u884c\u3002<\/p>\n
7. \u5ffd\u8996\u5b89\u5168\u6027<\/h2>\n
\u6578\u64da\u5eab\u5b89\u5168\u6027\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u672a\u80fd\u6b63\u78ba\u914d\u7f6e\u7528\u6236\u6b0a\u9650\u548c\u8a2a\u554f\u63a7\u5236\u6703\u5c0e\u81f4\u6578\u64da\u6d29\u9732\u6216\u640d\u58de\u3002\u61c9\u5b9a\u671f\u6aa2\u67e5\u7528\u6236\u6b0a\u9650\uff0c\u4e26\u4f7f\u7528\u5f37\u5bc6\u78bc\u4f86\u4fdd\u8b77\u6578\u64da\u5eab\u3002<\/p>\n
8. \u4e0d\u4f7f\u7528\u5099\u4efd<\/h2>\n
\u6578\u64da\u4e1f\u5931\u53ef\u80fd\u6703\u5c0d\u696d\u52d9\u9020\u6210\u91cd\u5927\u640d\u5931\u3002\u672a\u5b9a\u671f\u5099\u4efd\u6578\u64da\u5eab\u6703\u4f7f\u6578\u64da\u9762\u81e8\u98a8\u96aa\u3002\u61c9\u5b9a\u671f\u9032\u884c\u5099\u4efd\uff0c\u4e26\u6e2c\u8a66\u6062\u5fa9\u904e\u7a0b\uff0c\u4ee5\u78ba\u4fdd\u5728\u767c\u751f\u6545\u969c\u6642\u80fd\u5920\u5feb\u901f\u6062\u5fa9\u6578\u64da\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u4f7f\u7528MySQL\u6642\uff0c\u4e86\u89e3\u4e26\u907f\u514d\u9019\u4e9b\u5e38\u898b\u7684\u9677\u9631\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u7d22\u5f15\u3001\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u3001\u5229\u7528\u4e8b\u52d9\u3001\u512a\u5316\u67e5\u8a62\u3001\u4f7f\u7528\u7de9\u5b58\u3001\u5b9a\u671f\u7dad\u8b77\u3001\u52a0\u5f37\u5b89\u5168\u6027\u4ee5\u53ca\u5b9a\u671f\u5099\u4efd\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684MySQL\u6578\u64da\u5eab\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684\u670d\u52d9\uff0c\u8b93\u60a8\u7684\u6578\u64da\u5eab\u904b\u884c\u66f4\u52a0\u9806\u66a2\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u90198\u500bMySQL\u9677\u9631\uff0c\u907f\u514d\u5e38\u898b\u932f\u8aa4\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u5b89\u5168\u6027\uff0c\u8b93\u4f60\u7684\u958b\u767c\u5de5\u4f5c\u66f4\u52a0\u9806\u5229\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-196265","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196265","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=196265"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196265\/revisions"}],"predecessor-version":[{"id":196266,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196265\/revisions\/196266"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}