{"id":160533,"date":"2024-11-03T22:53:19","date_gmt":"2024-11-03T14:53:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160533\/"},"modified":"2024-11-03T22:53:20","modified_gmt":"2024-11-03T14:53:20","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e8%81%af%e6%8e%a5%e9%a0%86%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160533\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u806f\u63a5\u9806\u5e8f"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e8%81%af%e6%8e%a5%e9%a0%86%e5%ba%8f-axkBPpwAfs\">OceanBase \u6559\u7a0b\uff1aOceanBase \u806f\u63a5\u9806\u5e8f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u9078\u64c7\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u81f3\u95dc\u91cd\u8981\u3002OceanBase \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u8d8a\u4f86\u8d8a\u53d7\u5230\u958b\u767c\u8005\u7684\u9752\u775e\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u7684\u806f\u63a5\u9806\u5e8f\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728 OceanBase \u4e2d\u9032\u884c\u6709\u6548\u7684\u6578\u64da\u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-oceanbase%ef%bc%9f-axkBPpwAfs\">\u4ec0\u9ebc\u662f OceanBase\uff1f<\/h2>\n<p>OceanBase \u662f\u7531\u963f\u91cc\u5df4\u5df4\u958b\u767c\u7684\u4e00\u6b3e\u5206\u4f48\u5f0f\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u65e8\u5728\u652f\u6301\u9ad8\u4e26\u767c\u548c\u5927\u898f\u6a21\u7684\u6578\u64da\u8655\u7406\u3002\u5b83\u7684\u8a2d\u8a08\u7406\u5ff5\u662f\u70ba\u4e86\u6eff\u8db3\u91d1\u878d\u3001\u96fb\u5546\u7b49\u884c\u696d\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u9700\u6c42\u3002OceanBase \u652f\u6301 SQL \u8a9e\u8a00\uff0c\u4e26\u4e14\u517c\u5bb9 MySQL \u548c Oracle \u7684\u8a9e\u6cd5\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u4e0a\u624b\u3002<\/p>\n<h2 id=\"%e8%81%af%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-axkBPpwAfs\">\u806f\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u806f\u63a5\uff08Join\uff09\u662f\u4e00\u7a2e\u5c07\u4f86\u81ea\u5169\u500b\u6216\u591a\u500b\u8868\u7684\u6578\u64da\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\u9032\u884c\u7d44\u5408\u7684\u64cd\u4f5c\u3002\u806f\u63a5\u7684\u985e\u578b\u4e3b\u8981\u5305\u62ec\u5167\u806f\u63a5\uff08Inner Join\uff09\u3001\u5916\u806f\u63a5\uff08Outer Join\uff09\u3001\u4ea4\u53c9\u806f\u63a5\uff08Cross Join\uff09\u7b49\u3002\u4e86\u89e3\u4e0d\u540c\u7684\u806f\u63a5\u985e\u578b\u53ca\u5176\u4f7f\u7528\u5834\u666f\u5c0d\u65bc\u512a\u5316\u67e5\u8a62\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"oceanbase-%e7%9a%84%e8%81%af%e6%8e%a5%e9%a0%86%e5%ba%8f-axkBPpwAfs\">OceanBase \u7684\u806f\u63a5\u9806\u5e8f<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u806f\u63a5\u7684\u57f7\u884c\u9806\u5e8f\u6703\u5f71\u97ff\u67e5\u8a62\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5f71\u97ff\u806f\u63a5\u9806\u5e8f\u7684\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u8868\u7684\u5927\u5c0f\uff1a<\/strong>\u901a\u5e38\u60c5\u6cc1\u4e0b\uff0c\u8f03\u5c0f\u7684\u8868\u61c9\u8a72\u653e\u5728\u806f\u63a5\u7684\u524d\u9762\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u4e2d\u9593\u7d50\u679c\u96c6\u7684\u5927\u5c0f\u3002<\/li>\n<li><strong>\u7d22\u5f15\u7684\u4f7f\u7528\uff1a<\/strong>\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u56e0\u6b64\u5728\u9078\u64c7\u806f\u63a5\u9806\u5e8f\u6642\uff0c\u61c9\u8003\u616e\u7d22\u5f15\u7684\u5b58\u5728\u8207\u5426\u3002<\/li>\n<li><strong>\u904e\u6ffe\u689d\u4ef6\uff1a<\/strong>\u5728\u806f\u63a5\u4e4b\u524d\uff0c\u5148\u5c0d\u8868\u9032\u884c\u904e\u6ffe\u53ef\u4ee5\u6e1b\u5c11\u9700\u8981\u8655\u7406\u7684\u6578\u64da\u91cf\u3002<\/li>\n<\/ul>\n<h3 id=\"%e8%81%af%e6%8e%a5%e9%a0%86%e5%ba%8f%e7%9a%84%e5%84%aa%e5%8c%96%e7%a4%ba%e4%be%8b-axkBPpwAfs\">\u806f\u63a5\u9806\u5e8f\u7684\u512a\u5316\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 SQL \u67e5\u8a62\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728 OceanBase \u4e2d\u9032\u884c\u806f\u63a5\uff1a<\/p>\n<pre><code>SELECT a.id, a.name, b.order_id\nFROM users a\nINNER JOIN orders b ON a.id = b.user_id\nWHERE a.status = 'active';\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5f9e <code>users<\/code> \u8868\u4e2d\u9078\u64c7\u6240\u6709\u72c0\u614b\u70ba &#8216;active&#8217; \u7684\u7528\u6236\uff0c\u7136\u5f8c\u518d\u8207 <code>orders<\/code> \u8868\u9032\u884c\u806f\u63a5\u3002\u9019\u6a23\u7684\u9806\u5e8f\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u9700\u8981\u8655\u7406\u7684\u6578\u64da\u91cf\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-explain-%e5%88%86%e6%9e%90%e8%81%af%e6%8e%a5%e9%a0%86%e5%ba%8f-axkBPpwAfs\">\u4f7f\u7528 EXPLAIN \u5206\u6790\u806f\u63a5\u9806\u5e8f<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>EXPLAIN<\/code> \u8a9e\u53e5\u4f86\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u4e86\u89e3\u806f\u63a5\u7684\u9806\u5e8f\u548c\u6027\u80fd\u74f6\u9838\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 <code>EXPLAIN<\/code> \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>EXPLAIN SELECT a.id, a.name, b.order_id\nFROM users a\nINNER JOIN orders b ON a.id = b.user_id\nWHERE a.status = 'active';\n<\/code><\/pre>\n<p>\u57f7\u884c\u9019\u500b\u547d\u4ee4\u5f8c\uff0cOceanBase \u6703\u8fd4\u56de\u4e00\u500b\u57f7\u884c\u8a08\u5283\uff0c\u986f\u793a\u6bcf\u500b\u8868\u7684\u8a2a\u554f\u9806\u5e8f\u3001\u4f7f\u7528\u7684\u7d22\u5f15\u4ee5\u53ca\u9810\u8a08\u7684\u884c\u6578\u3002\u901a\u904e\u5206\u6790\u9019\u4e9b\u4fe1\u606f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9032\u4e00\u6b65\u512a\u5316\u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-axkBPpwAfs\">\u7d50\u8ad6<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u806f\u63a5\u7684\u9806\u5e8f\u5c0d\u65bc\u67e5\u8a62\u6027\u80fd\u6709\u8457\u91cd\u8981\u5f71\u97ff\u3002\u901a\u904e\u5408\u7406\u5b89\u6392\u806f\u63a5\u9806\u5e8f\u3001\u4f7f\u7528\u7d22\u5f15\u4ee5\u53ca\u904e\u6ffe\u689d\u4ef6\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\u3002\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 <code>EXPLAIN<\/code> \u5206\u6790\u67e5\u8a62\u8a08\u5283\u4e5f\u662f\u512a\u5316\u904e\u7a0b\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u6b65\u9a5f\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 OceanBase \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 OceanBase \u6559\u7a0b\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u512a\u5316 OceanBase \u806f\u63a5\u9806\u5e8f\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6027\u80fd\u548c\u6548\u7387\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-160533","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160533","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=160533"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160533\/revisions"}],"predecessor-version":[{"id":160534,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160533\/revisions\/160534"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}