{"id":160321,"date":"2024-11-03T22:08:21","date_gmt":"2024-11-03T14:08:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160321\/"},"modified":"2024-11-03T22:08:23","modified_gmt":"2024-11-03T14:08:23","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%9f%a5%e8%a9%a2%e5%92%8c%e5%ad%90%e6%9f%a5%e8%a9%a2%e6%a6%82%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160321\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u67e5\u8a62\u548c\u5b50\u67e5\u8a62\u6982\u8ff0"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%9f%a5%e8%a9%a2%e5%92%8c%e5%ad%90%e6%9f%a5%e8%a9%a2%e6%a6%82%e8%bf%b0-BdZdYMrdrP\">OceanBase \u6559\u7a0b\uff1aOceanBase \u67e5\u8a62\u548c\u5b50\u67e5\u8a62\u6982\u8ff0<\/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\u5df2\u7d93\u5728\u591a\u500b\u884c\u696d\u4e2d\u5f97\u5230\u4e86\u5ee3\u6cdb\u61c9\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u7684\u67e5\u8a62\u548c\u5b50\u67e5\u8a62\u529f\u80fd\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e00\u5f37\u5927\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-oceanbase%ef%bc%9f-BdZdYMrdrP\">\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\u63d0\u4f9b\u9ad8\u53ef\u7528\u6027\u548c\u53ef\u64f4\u5c55\u6027\uff0c\u4e26\u4e14\u80fd\u5920\u5728\u591a\u7a2e\u74b0\u5883\u4e2d\u904b\u884c\uff0c\u5305\u62ec\u96f2\u7aef\u548c\u672c\u5730\u90e8\u7f72\u3002OceanBase \u652f\u6301 SQL \u8a9e\u8a00\uff0c\u9019\u4f7f\u5f97\u5b83\u5c0d\u65bc\u719f\u6089\u50b3\u7d71\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u5177\u6709\u8f03\u4f4e\u7684\u5b78\u7fd2\u66f2\u7dda\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e6%a6%82%e8%bf%b0-BdZdYMrdrP\">\u67e5\u8a62\u6982\u8ff0<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u67e5\u8a62\u662f\u7528\u4f86\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u7684\u57fa\u672c\u64cd\u4f5c\u3002\u67e5\u8a62\u8a9e\u53e5\u901a\u5e38\u4f7f\u7528 SQL \u8a9e\u8a00\u7de8\u5beb\uff0c\u4e26\u4e14\u53ef\u4ee5\u5305\u62ec\u591a\u7a2e\u689d\u4ef6\u548c\u904e\u6ffe\u5668\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE age &gt; 18;<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5c07\u5f9e\u540d\u70ba <code>users<\/code> \u7684\u8868\u4e2d\u6aa2\u7d22\u6240\u6709\u5e74\u9f61\u5927\u65bc 18 \u6b72\u7684\u7528\u6236\u3002OceanBase \u652f\u6301\u591a\u7a2e\u67e5\u8a62\u64cd\u4f5c\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9078\u64c7\u67e5\u8a62\uff1a<\/strong> \u7528\u65bc\u6aa2\u7d22\u6578\u64da\u3002<\/li>\n<li><strong>\u805a\u5408\u67e5\u8a62\uff1a<\/strong> \u7528\u65bc\u8a08\u7b97\u7e3d\u548c\u3001\u5e73\u5747\u503c\u7b49\u3002<\/li>\n<li><strong>\u806f\u63a5\u67e5\u8a62\uff1a<\/strong> \u7528\u65bc\u5f9e\u591a\u500b\u8868\u4e2d\u6aa2\u7d22\u76f8\u95dc\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%ad%90%e6%9f%a5%e8%a9%a2%e6%a6%82%e8%bf%b0-BdZdYMrdrP\">\u5b50\u67e5\u8a62\u6982\u8ff0<\/h2>\n<p>\u5b50\u67e5\u8a62\u662f\u6307\u5728\u4e00\u500b\u67e5\u8a62\u4e2d\u5d4c\u5957\u53e6\u4e00\u500b\u67e5\u8a62\u3002\u9019\u7a2e\u6280\u8853\u53ef\u4ee5\u7528\u4f86\u9032\u884c\u66f4\u8907\u96dc\u7684\u6578\u64da\u6aa2\u7d22\u3002OceanBase \u652f\u6301\u591a\u7a2e\u5f62\u5f0f\u7684\u5b50\u67e5\u8a62\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6a19\u91cf\u5b50\u67e5\u8a62\uff1a<\/strong> \u8fd4\u56de\u55ae\u4e00\u503c\u7684\u5b50\u67e5\u8a62\u3002<\/li>\n<li><strong>\u884c\u5b50\u67e5\u8a62\uff1a<\/strong> \u8fd4\u56de\u4e00\u884c\u6578\u64da\u7684\u5b50\u67e5\u8a62\u3002<\/li>\n<li><strong>\u8868\u5b50\u67e5\u8a62\uff1a<\/strong> \u8fd4\u56de\u591a\u884c\u591a\u5217\u6578\u64da\u7684\u5b50\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u5b50\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE id IN (SELECT user_id FROM orders WHERE amount &gt; 100);<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u6aa2\u7d22\u6240\u6709\u5728 <code>orders<\/code> \u8868\u4e2d\u6709\u8a02\u55ae\u91d1\u984d\u5927\u65bc 100 \u7684\u7528\u6236\u3002\u5b50\u67e5\u8a62\u7684\u4f7f\u7528\u53ef\u4ee5\u4f7f\u67e5\u8a62\u66f4\u52a0\u9748\u6d3b\u548c\u5f37\u5927\u3002<\/p>\n<h2 id=\"%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-BdZdYMrdrP\">\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u4f7f\u7528 OceanBase \u9032\u884c\u67e5\u8a62\u548c\u5b50\u67e5\u8a62\u6642\uff0c\u6027\u80fd\u662f\u9700\u8981\u8003\u616e\u7684\u91cd\u8981\u56e0\u7d20\u3002\u70ba\u4e86\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u7d22\u5f15\uff1a<\/strong> \u70ba\u5e38\u7528\u7684\u67e5\u8a62\u5b57\u6bb5\u5efa\u7acb\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u67e5\u8a62\u512a\u5316\uff1a<\/strong> \u4f7f\u7528 EXPLAIN \u8a9e\u53e5\u4f86\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5b50\u67e5\u8a62\uff1a<\/strong> \u5728\u53ef\u80fd\u7684\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u806f\u63a5\u4ee3\u66ff\u5b50\u67e5\u8a62\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-BdZdYMrdrP\">\u7e3d\u7d50<\/h2>\n<p>OceanBase \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6548\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u67e5\u8a62\u548c\u5b50\u67e5\u8a62\u529f\u80fd\uff0c\u80fd\u5920\u6eff\u8db3\u5404\u7a2e\u6578\u64da\u6aa2\u7d22\u9700\u6c42\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u67e5\u8a62\u548c\u5b50\u67e5\u8a62\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u5f9e\u6578\u64da\u4e2d\u63d0\u53d6\u6240\u9700\u7684\u4fe1\u606f\uff0c\u4e26\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u90e8\u7f72\u548c\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u9084\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 OceanBase \u6559\u7a0b\uff0c\u4e86\u89e3\u67e5\u8a62\u548c\u5b50\u67e5\u8a62\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u80fd\uff0c\u512a\u5316\u67e5\u8a62\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-160321","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160321","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=160321"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160321\/revisions"}],"predecessor-version":[{"id":160322,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160321\/revisions\/160322"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}