{"id":76738,"date":"2024-10-16T09:25:19","date_gmt":"2024-10-16T01:25:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76738\/"},"modified":"2024-10-16T09:25:19","modified_gmt":"2024-10-16T01:25:19","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%ad%a3%e7%a2%ba%e5%af%a6%e7%8f%be%e5%88%86%e9%a0%81%e9%a1%af%e7%a4%ba%e7%9a%84%e4%bb%a3%e7%a2%bc%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76738\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5be6\u73fe\u5206\u9801\u986f\u793a\u7684\u4ee3\u78bc\u793a\u4f8b"},"content":{"rendered":"

MySQL\u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5be6\u73fe\u5206\u9801\u986f\u793a\u7684\u4ee3\u78bc\u793a\u4f8b<\/h1>\n

\u5728\u73fe\u4ee3\u7684\u7db2\u9801\u61c9\u7528\u4e2d\uff0c\u6578\u64da\u7684\u5206\u9801\u986f\u793a\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\u3002\u7576\u6578\u64da\u91cf\u9f90\u5927\u6642\uff0c\u5c07\u6240\u6709\u6578\u64da\u4e00\u6b21\u6027\u986f\u793a\u6703\u5f71\u97ff\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u3002\u56e0\u6b64\uff0c\u6b63\u78ba\u5be6\u73fe\u5206\u9801\u986f\u793a\u4e0d\u50c5\u80fd\u63d0\u9ad8\u61c9\u7528\u7684\u6027\u80fd\uff0c\u9084\u80fd\u63d0\u5347\u7528\u6236\u7684\u700f\u89bd\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728MySQL\u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5be6\u73fe\u5206\u9801\u986f\u793a\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n

\u5206\u9801\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u5206\u9801\u7684\u57fa\u672c\u6982\u5ff5\u662f\u5c07\u6578\u64da\u5206\u6210\u591a\u500b\u9801\u9762\uff0c\u6bcf\u6b21\u53ea\u986f\u793a\u4e00\u90e8\u5206\u6578\u64da\u3002\u9019\u6a23\u7528\u6236\u53ef\u4ee5\u901a\u904e\u7ffb\u9801\u4f86\u67e5\u770b\u6240\u6709\u6578\u64da\u3002\u5206\u9801\u901a\u5e38\u9700\u8981\u5169\u500b\u53c3\u6578\uff1a\u7576\u524d\u9801\u78bc\u548c\u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578\u3002<\/p>\n

MySQL\u4e2d\u7684\u5206\u9801\u67e5\u8a62<\/h2>\n

\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528LIMIT\u548cOFFSET\u4f86\u5be6\u73fe\u5206\u9801\u67e5\u8a62\u3002LIMIT\u7528\u65bc\u9650\u5236\u67e5\u8a62\u7d50\u679c\u7684\u6578\u91cf\uff0c\u800cOFFSET\u5247\u7528\u65bc\u6307\u5b9a\u5f9e\u54ea\u4e00\u689d\u8a18\u9304\u958b\u59cb\u67e5\u8a62\u3002<\/p>\n

\u57fa\u672c\u8a9e\u6cd5<\/h3>\n
SELECT * FROM \u8868\u540d LIMIT \u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578 OFFSET (\u7576\u524d\u9801\u78bc - 1) * \u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578;<\/code><\/pre>\n
\u793a\u4f8b<\/h3>\n
\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cusers\u201d\u7684\u8868\uff0c\u4e26\u4e14\u6211\u5011\u5e0c\u671b\u6bcf\u9801\u986f\u793a10\u689d\u8a18\u9304\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5be6\u73fe\u5206\u9801\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n
-- \u5047\u8a2d\u7576\u524d\u9801\u78bc\u70ba2\nSET @current_page = 2;\nSET @records_per_page = 10;\n\nSELECT * FROM users \nLIMIT @records_per_page \nOFFSET (@current_page - 1) * @records_per_page;<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u7576\u524d\u9801\u78bc\u70ba2\uff0c\u9019\u610f\u5473\u8457\u6211\u5011\u5e0c\u671b\u5f9e\u7b2c11\u689d\u8a18\u9304\u958b\u59cb\u986f\u793a10\u689d\u8a18\u9304\u3002<\/p>\n
\u8a08\u7b97\u7e3d\u9801\u6578<\/h2>\n
\u5728\u5be6\u73fe\u5206\u9801\u529f\u80fd\u6642\uff0c\u9664\u4e86\u986f\u793a\u7576\u524d\u9801\u7684\u6578\u64da\u5916\uff0c\u9084\u9700\u8981\u8a08\u7b97\u7e3d\u9801\u6578\uff0c\u4ee5\u4fbf\u7528\u6236\u53ef\u4ee5\u77e5\u9053\u9084\u6709\u591a\u5c11\u9801\u53ef\u4f9b\u700f\u89bd\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8a08\u7b97\u7e3d\u8a18\u9304\u6578\u4f86\u5be6\u73fe\u3002<\/p>\n
SELECT COUNT(*) FROM users;<\/code><\/pre>\n
\u7136\u5f8c\uff0c\u6839\u64da\u7e3d\u8a18\u9304\u6578\u548c\u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578\u8a08\u7b97\u7e3d\u9801\u6578\uff1a<\/p>\n
SET @total_records = (SELECT COUNT(*) FROM users);\nSET @total_pages = CEIL(@total_records \/ @records_per_page);<\/code><\/pre>\n
\u5b8c\u6574\u7684\u5206\u9801\u67e5\u8a62\u793a\u4f8b<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u5206\u9801\u67e5\u8a62\u793a\u4f8b\uff0c\u5305\u62ec\u8a08\u7b97\u7e3d\u9801\u6578\u548c\u986f\u793a\u7576\u524d\u9801\u7684\u6578\u64da\uff1a<\/p>\n
SET @current_page = 2;\nSET @records_per_page = 10;\n\n-- \u8a08\u7b97\u7e3d\u8a18\u9304\u6578\nSET @total_records = (SELECT COUNT(*) FROM users);\nSET @total_pages = CEIL(@total_records \/ @records_per_page);\n\n-- \u67e5\u8a62\u7576\u524d\u9801\u7684\u6578\u64da\nSELECT * FROM users \nLIMIT @records_per_page \nOFFSET (@current_page - 1) * @records_per_page;\n\n-- \u986f\u793a\u7e3d\u9801\u6578\nSELECT @total_pages AS total_pages;<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
\u5728MySQL\u4e2d\u5be6\u73fe\u5206\u9801\u986f\u793a\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u53ea\u9700\u4f7f\u7528LIMIT\u548cOFFSET\u5373\u53ef\u8f15\u9b06\u5b8c\u6210\u3002\u901a\u904e\u8a08\u7b97\u7e3d\u8a18\u9304\u6578\u548c\u7e3d\u9801\u6578\uff0c\u7528\u6236\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u700f\u89bd\u6578\u64da\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u61c9\u7528\u7684\u6027\u80fd\uff0c\u9084\u6539\u5584\u4e86\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u5728MySQL\u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u5be6\u73fe\u5206\u9801\u986f\u793a\uff0c\u67e5\u770b\u4ee3\u78bc\u793a\u4f8b\u4ee5\u512a\u5316\u6578\u64da\u67e5\u8a62\u548c\u986f\u793a\u6548\u679c\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-76738","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76738","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=76738"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76738\/revisions"}],"predecessor-version":[{"id":76739,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76738\/revisions\/76739"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}