{"id":143837,"date":"2024-11-01T01:40:22","date_gmt":"2024-10-31T17:40:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/143837\/"},"modified":"2024-11-01T01:40:23","modified_gmt":"2024-10-31T17:40:23","slug":"sql-%e6%8a%80%e5%b7%a7%ef%bc%9a%e5%af%a6%e7%8f%be%e5%85%a9%e5%80%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%96%93%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5-sql-%e5%85%a9%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8c%e6%ad%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/143837\/","title":{"rendered":"SQL \u6280\u5de7\uff1a\u5be6\u73fe\u5169\u500b\u6578\u64da\u5eab\u9593\u6578\u64da\u540c\u6b65 (sql \u5169\u6578\u64da\u5eab\u540c\u6b65\u6578\u64da)"},"content":{"rendered":"<h1 id=\"sql-%e6%8a%80%e5%b7%a7%ef%bc%9a%e5%af%a6%e7%8f%be%e5%85%a9%e5%80%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%96%93%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5-ygEAswtLDM\">SQL \u6280\u5de7\uff1a\u5be6\u73fe\u5169\u500b\u6578\u64da\u5eab\u9593\u6578\u64da\u540c\u6b65<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u540c\u6b65\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u70ba\u4e86\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\uff0c\u9084\u662f\u70ba\u4e86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u5be6\u73fe\u5169\u500b\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6578\u64da\u540c\u6b65\u90fd\u662f\u4e00\u9805\u95dc\u9375\u6280\u8853\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 SQL \u6280\u5de7\u4f86\u5be6\u73fe\u9019\u4e00\u76ee\u6a19\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-ygEAswtLDM\">\u6578\u64da\u540c\u6b65\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u6578\u64da\u540c\u6b65\u662f\u6307\u5c07\u4e00\u500b\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u66f4\u65b0\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u4e2d\uff0c\u4ee5\u78ba\u4fdd\u5169\u8005\u4e4b\u9593\u7684\u6578\u64da\u4e00\u81f4\u6027\u3002\u9019\u5728\u591a\u7a2e\u60c5\u6cc1\u4e0b\u90fd\u662f\u5fc5\u8981\u7684\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u5099\u4efd\uff1a\u5b9a\u671f\u5c07\u4e3b\u6578\u64da\u5eab\u7684\u6578\u64da\u5099\u4efd\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u4e2d\uff0c\u4ee5\u9632\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u8ca0\u8f09\u5747\u8861\uff1a\u5728\u591a\u500b\u6578\u64da\u5eab\u4e4b\u9593\u5206\u914d\u8acb\u6c42\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li>\u6578\u64da\u6574\u5408\uff1a\u5c07\u4f86\u81ea\u4e0d\u540c\u4f86\u6e90\u7684\u6578\u64da\u6574\u5408\u5230\u4e00\u500b\u4e2d\u5fc3\u6578\u64da\u5eab\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-ygEAswtLDM\">\u6578\u64da\u540c\u6b65\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5be6\u73fe\u6578\u64da\u540c\u6b65\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u6280\u8853\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e8%a7%b8%e7%99%bc%e5%99%a8-ygEAswtLDM\">1. \u4f7f\u7528\u89f8\u767c\u5668<\/h3>\n<p>\u89f8\u767c\u5668\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u5b58\u5132\u904e\u7a0b\uff0c\u7576\u7279\u5b9a\u4e8b\u4ef6\u767c\u751f\u6642\u81ea\u52d5\u57f7\u884c\u3002\u53ef\u4ee5\u5728\u4e3b\u6578\u64da\u5eab\u4e2d\u8a2d\u7f6e\u89f8\u767c\u5668\uff0c\u7576\u6578\u64da\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u6642\uff0c\u81ea\u52d5\u5c07\u9019\u4e9b\u8b8a\u66f4\u540c\u6b65\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u3002<\/p>\n<pre><code>\nCREATE TRIGGER sync_after_insert\nAFTER INSERT ON source_table\nFOR EACH ROW\nBEGIN\n    INSERT INTO target_table (column1, column2)\n    VALUES (NEW.column1, NEW.column2);\nEND;\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%ae%9a%e6%99%82%e4%bb%bb%e5%8b%99-ygEAswtLDM\">2. \u4f7f\u7528\u5b9a\u6642\u4efb\u52d9<\/h3>\n<p>\u5b9a\u6642\u4efb\u52d9\u53ef\u4ee5\u5b9a\u671f\u57f7\u884c SQL \u67e5\u8a62\uff0c\u5c07\u6578\u64da\u5f9e\u4e00\u500b\u6578\u64da\u5eab\u8907\u88fd\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u3002\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u65bc\u4e0d\u9700\u8981\u5be6\u6642\u540c\u6b65\u7684\u5834\u666f\u3002<\/p>\n<pre><code>\nCREATE EVENT sync_event\nON SCHEDULE EVERY 1 HOUR\nDO\nBEGIN\n    INSERT INTO target_table (column1, column2)\n    SELECT column1, column2 FROM source_table\n    ON DUPLICATE KEY UPDATE column2 = VALUES(column2);\nEND;\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-etl-%e5%b7%a5%e5%85%b7-ygEAswtLDM\">3. \u4f7f\u7528 ETL \u5de5\u5177<\/h3>\n<p>ETL\uff08\u63d0\u53d6\u3001\u8f49\u63db\u3001\u52a0\u8f09\uff09\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5f9e\u4e00\u500b\u6578\u64da\u5eab\u63d0\u53d6\u6578\u64da\uff0c\u9032\u884c\u5fc5\u8981\u7684\u8f49\u63db\uff0c\u7136\u5f8c\u52a0\u8f09\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u4e2d\u3002\u9019\u4e9b\u5de5\u5177\u901a\u5e38\u63d0\u4f9b\u5716\u5f62\u754c\u9762\uff0c\u65b9\u4fbf\u7528\u6236\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5%e7%9a%84%e6%8c%91%e6%88%b0-ygEAswtLDM\">\u6578\u64da\u540c\u6b65\u7684\u6311\u6230<\/h2>\n<p>\u5118\u7ba1\u6578\u64da\u540c\u6b65\u6280\u8853\u53ef\u4ee5\u5e36\u4f86\u8a31\u591a\u597d\u8655\uff0c\u4f46\u5728\u5be6\u65bd\u904e\u7a0b\u4e2d\u4e5f\u6703\u9762\u81e8\u4e00\u4e9b\u6311\u6230\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u885d\u7a81\uff1a\u7576\u5169\u500b\u6578\u64da\u5eab\u540c\u6642\u66f4\u65b0\u76f8\u540c\u7684\u6578\u64da\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u885d\u7a81\u3002<\/li>\n<li>\u6027\u80fd\u554f\u984c\uff1a\u983b\u7e41\u7684\u6578\u64da\u540c\u6b65\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/li>\n<li>\u7db2\u7d61\u5ef6\u9072\uff1a\u5728\u4e0d\u540c\u5730\u7406\u4f4d\u7f6e\u7684\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u540c\u6b65\u6642\uff0c\u7db2\u7d61\u5ef6\u9072\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u53ca\u6642\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-ygEAswtLDM\">\u7d50\u8ad6<\/h2>\n<p>\u5be6\u73fe\u5169\u500b\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6578\u64da\u540c\u6b65\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u8853\uff0c\u80fd\u5920\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\u548c\u4e00\u81f4\u6027\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u89f8\u767c\u5668\u3001\u5b9a\u6642\u4efb\u52d9\u9084\u662f ETL \u5de5\u5177\uff0c\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u548c\u6280\u8853\u74b0\u5883\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u6301\u7e8c\u512a\u5316\u6578\u64da\u540c\u6b65\u7684\u7b56\u7565\u5c07\u662f\u672a\u4f86\u7684\u4e00\u500b\u91cd\u8981\u65b9\u5411\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u696d\u52d9\u4e2d\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u540c\u6b65\u6709\u8208\u8da3\uff0c\u6216\u8005\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u53ca\u5176\u5728\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u61c9\u7528\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 SQL \u6280\u5de7\u5be6\u73fe\u5169\u500b\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6578\u64da\u540c\u6b65\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\u9ad8\u6548\u7ba1\u7406\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-143837","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143837","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=143837"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143837\/revisions"}],"predecessor-version":[{"id":143838,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143837\/revisions\/143838"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=143837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=143837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=143837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}