{"id":160323,"date":"2024-11-03T22:09:20","date_gmt":"2024-11-03T14:09:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160323\/"},"modified":"2024-11-03T22:09:21","modified_gmt":"2024-11-03T14:09:21","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%9f%a5%e6%89%be%e6%9f%90%e5%80%8b%e7%a7%9f%e6%88%b6%e4%b8%ad%e5%9f%b7%e8%a1%8c%e5%85%a8%e8%a1%a8%e6%8e%83%e6%8f%8f%e7%9a%84-sql","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160323\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u67e5\u627e\u67d0\u500b\u79df\u6236\u4e2d\u57f7\u884c\u5168\u8868\u6383\u63cf\u7684 SQL"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%9f%a5%e6%89%be%e6%9f%90%e5%80%8b%e7%a7%9f%e6%88%b6%e4%b8%ad%e5%9f%b7%e8%a1%8c%e5%85%a8%e8%a1%a8%e6%8e%83%e6%8f%8f%e7%9a%84-sql-eJRMKiIqZY\">OceanBase \u6559\u7a0b\uff1aOceanBase \u67e5\u627e\u67d0\u500b\u79df\u6236\u4e2d\u57f7\u884c\u5168\u8868\u6383\u63cf\u7684 SQL<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u512a\u5316\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002OceanBase \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u91d1\u878d\u3001\u96fb\u5546\u7b49\u884c\u696d\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 OceanBase \u4e2d\u67e5\u627e\u67d0\u500b\u79df\u6236\u4e2d\u57f7\u884c\u5168\u8868\u6383\u63cf\u7684 SQL\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7406\u89e3\u548c\u512a\u5316\u5176\u6578\u64da\u5eab\u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%85%a8%e8%a1%a8%e6%8e%83%e6%8f%8f%ef%bc%9f-eJRMKiIqZY\">\u4ec0\u9ebc\u662f\u5168\u8868\u6383\u63cf\uff1f<\/h2>\n<p>\u5168\u8868\u6383\u63cf\u662f\u6307\u6578\u64da\u5eab\u5728\u67e5\u8a62\u6642\uff0c\u5c0d\u6574\u500b\u8868\u9032\u884c\u6383\u63cf\u4ee5\u67e5\u627e\u7b26\u5408\u689d\u4ef6\u7684\u6578\u64da\u3002\u9019\u7a2e\u64cd\u4f5c\u901a\u5e38\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u8f03\u5927\u7684\u60c5\u6cc1\u4e0b\u3002\u5168\u8868\u6383\u63cf\u7684\u539f\u56e0\u53ef\u80fd\u5305\u62ec\u7f3a\u4e4f\u7d22\u5f15\u3001\u67e5\u8a62\u689d\u4ef6\u4e0d\u7576\u7b49\u3002\u56e0\u6b64\uff0c\u8b58\u5225\u548c\u512a\u5316\u5168\u8868\u6383\u63cf\u7684 SQL \u67e5\u8a62\u5c0d\u65bc\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"oceanbase-%e4%b8%ad%e7%9a%84-sql-%e6%9f%a5%e8%a9%a2%e5%88%86%e6%9e%90-eJRMKiIqZY\">OceanBase \u4e2d\u7684 SQL \u67e5\u8a62\u5206\u6790<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u901a\u904e\u7cfb\u7d71\u8868\u548c\u6027\u80fd\u8996\u5716\u4f86\u5206\u6790 SQL \u67e5\u8a62\u7684\u57f7\u884c\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u7cfb\u7d71\u8868\uff1a<\/p>\n<ul>\n<li><code>ob_query_history<\/code>\uff1a\u8a18\u9304\u4e86\u6240\u6709\u57f7\u884c\u904e\u7684 SQL \u67e5\u8a62\u3002<\/li>\n<li><code>ob_sql_plan<\/code>\uff1a\u5b58\u5132 SQL \u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\u3002<\/li>\n<li><code>ob_session<\/code>\uff1a\u5305\u542b\u7576\u524d\u6703\u8a71\u7684\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e6%89%be%e5%85%a8%e8%a1%a8%e6%8e%83%e6%8f%8f%e7%9a%84-sql-%e6%9f%a5%e8%a9%a2-eJRMKiIqZY\">\u67e5\u627e\u5168\u8868\u6383\u63cf\u7684 SQL \u67e5\u8a62<\/h2>\n<p>\u8981\u67e5\u627e\u67d0\u500b\u79df\u6236\u4e2d\u57f7\u884c\u5168\u8868\u6383\u63cf\u7684 SQL\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u8a9e\u53e5\uff1a<\/p>\n<pre><code>\nSELECT \n    query_id, \n    sql_text, \n    execution_time, \n    scan_rows \nFROM \n    ob_query_history \nWHERE \n    tenant_id = 'your_tenant_id' \n    AND scan_rows = (SELECT COUNT(*) FROM your_table_name)\nORDER BY \n    execution_time DESC;\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u67e5\u8a62\u4e2d\uff0c\u8acb\u5c07 <code>your_tenant_id<\/code> \u66ff\u63db\u70ba\u76ee\u6a19\u79df\u6236\u7684 ID\uff0c<code>your_table_name<\/code> \u66ff\u63db\u70ba\u9700\u8981\u6aa2\u67e5\u7684\u8868\u540d\u3002\u9019\u6a23\u53ef\u4ee5\u7372\u53d6\u5230\u6240\u6709\u57f7\u884c\u5168\u8868\u6383\u63cf\u7684 SQL \u67e5\u8a62\uff0c\u4e26\u6309\u57f7\u884c\u6642\u9593\u964d\u5e8f\u6392\u5217\u3002<\/p>\n<h2 id=\"%e5%88%86%e6%9e%90%e6%9f%a5%e8%a9%a2%e7%b5%90%e6%9e%9c-eJRMKiIqZY\">\u5206\u6790\u67e5\u8a62\u7d50\u679c<\/h2>\n<p>\u67e5\u8a62\u7d50\u679c\u4e2d\uff0c<code>query_id<\/code> \u662f SQL \u67e5\u8a62\u7684\u552f\u4e00\u6a19\u8b58\uff0c<code>sql_text<\/code> \u662f\u5be6\u969b\u57f7\u884c\u7684 SQL \u8a9e\u53e5\uff0c<code>execution_time<\/code> \u662f\u57f7\u884c\u6642\u9593\uff0c<code>scan_rows<\/code> \u5247\u986f\u793a\u6383\u63cf\u7684\u884c\u6578\u3002\u901a\u904e\u9019\u4e9b\u4fe1\u606f\uff0c\u7528\u6236\u53ef\u4ee5\u8b58\u5225\u51fa\u6027\u80fd\u74f6\u9838\uff0c\u4e26\u9032\u4e00\u6b65\u512a\u5316 SQL \u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e5%84%aa%e5%8c%96%e5%85%a8%e8%a1%a8%e6%8e%83%e6%8f%8f%e7%9a%84%e5%bb%ba%e8%ad%b0-eJRMKiIqZY\">\u512a\u5316\u5168\u8868\u6383\u63cf\u7684\u5efa\u8b70<\/h2>\n<p>\u5728\u8b58\u5225\u51fa\u5168\u8868\u6383\u63cf\u7684 SQL \u67e5\u8a62\u5f8c\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u6dfb\u52a0\u7d22\u5f15\uff1a<\/strong>\u6839\u64da\u67e5\u8a62\u689d\u4ef6\u6dfb\u52a0\u9069\u7576\u7684\u7d22\u5f15\uff0c\u4ee5\u6e1b\u5c11\u5168\u8868\u6383\u63cf\u7684\u9700\u6c42\u3002<\/li>\n<li><strong>\u91cd\u69cb\u67e5\u8a62\uff1a<\/strong>\u8003\u616e\u91cd\u69cb SQL \u67e5\u8a62\uff0c\u4f7f\u7528\u66f4\u5177\u91dd\u5c0d\u6027\u7684\u689d\u4ef6\u4f86\u9650\u5236\u6383\u63cf\u7684\u884c\u6578\u3002<\/li>\n<li><strong>\u5206\u5340\u8868\uff1a<\/strong>\u5c0d\u65bc\u5927\u6578\u64da\u91cf\u7684\u8868\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5206\u5340\u8868\u4f86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-eJRMKiIqZY\">\u7d50\u8ad6<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u5728 OceanBase \u4e2d\u67e5\u627e\u67d0\u500b\u79df\u6236\u4e2d\u57f7\u884c\u5168\u8868\u6383\u63cf\u7684 SQL \u67e5\u8a62\uff0c\u4e26\u91dd\u5c0d\u6027\u5730\u9032\u884c\u512a\u5316\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6539\u5584\u6574\u9ad4\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u80fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u53ca\u5176\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7684\u61c9\u7528\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728 OceanBase \u4e2d\u67e5\u627e\u7279\u5b9a\u79df\u6236\u57f7\u884c\u5168\u8868\u6383\u63cf\u7684 SQL\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\u8207\u6027\u80fd\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-160323","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160323","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=160323"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160323\/revisions"}],"predecessor-version":[{"id":160324,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160323\/revisions\/160324"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}