{"id":160621,"date":"2024-11-03T23:37:21","date_gmt":"2024-11-03T15:37:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160621\/"},"modified":"2024-11-03T23:37:22","modified_gmt":"2024-11-03T15:37:22","slug":"oceanbase%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e9%81%8b%e7%ae%97%e7%ac%a6%e6%a6%82%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160621\/","title":{"rendered":"OCEANBASE\u6559\u7a0b\uff1aOceanBase \u904b\u7b97\u7b26\u6982\u8ff0"},"content":{"rendered":"<h1 id=\"oceanbase%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e9%81%8b%e7%ae%97%e7%ac%a6%e6%a6%82%e8%bf%b0-GKJVMCXnfL\">OCEANBASE\u6559\u7a0b\uff1aOceanBase \u904b\u7b97\u7b26\u6982\u8ff0<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cOceanBase \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u8d8a\u4f86\u8d8a\u53d7\u5230\u958b\u767c\u8005\u548c\u4f01\u696d\u7684\u9752\u775e\u3002\u5b83\u4e0d\u50c5\u652f\u6301\u9ad8\u4e26\u767c\u7684\u4e8b\u52d9\u8655\u7406\uff0c\u9084\u5177\u5099\u826f\u597d\u7684\u64f4\u5c55\u6027\u548c\u5bb9\u932f\u80fd\u529b\u3002\u672c\u6587\u5c07\u5c0d OceanBase \u7684\u904b\u7b97\u7b26\u9032\u884c\u6982\u8ff0\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5176\u529f\u80fd\u548c\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%81%8b%e7%ae%97%e7%ac%a6%ef%bc%9f-GKJVMCXnfL\">\u4ec0\u9ebc\u662f\u904b\u7b97\u7b26\uff1f<\/h2>\n<p>\u904b\u7b97\u7b26\u662f\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u8a00\u4e2d\u7684\u57fa\u672c\u7d44\u4ef6\uff0c\u7528\u65bc\u57f7\u884c\u5404\u7a2e\u64cd\u4f5c\uff0c\u5982\u6578\u64da\u7684\u6bd4\u8f03\u3001\u8a08\u7b97\u548c\u908f\u8f2f\u904b\u7b97\u3002\u5728 OceanBase \u4e2d\uff0c\u904b\u7b97\u7b26\u7684\u4f7f\u7528\u4f7f\u5f97\u67e5\u8a62\u8a9e\u53e5\u66f4\u52a0\u9748\u6d3b\u548c\u5f37\u5927\u3002<\/p>\n<h2 id=\"oceanbase-%e4%b8%ad%e7%9a%84%e9%81%8b%e7%ae%97%e7%ac%a6%e9%a1%9e%e5%9e%8b-GKJVMCXnfL\">OceanBase \u4e2d\u7684\u904b\u7b97\u7b26\u985e\u578b<\/h2>\n<p>OceanBase \u652f\u6301\u591a\u7a2e\u904b\u7b97\u7b26\uff0c\u4e3b\u8981\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u985e\uff1a<\/p>\n<ul>\n<li><strong>\u7b97\u8853\u904b\u7b97\u7b26\uff1a<\/strong>\u7528\u65bc\u6578\u503c\u8a08\u7b97\u7684\u904b\u7b97\u7b26\uff0c\u5305\u62ec\u52a0\u6cd5 (+)\u3001\u6e1b\u6cd5 (-)\u3001\u4e58\u6cd5 (*) \u548c\u9664\u6cd5 (\/)\u3002<\/li>\n<li><strong>\u6bd4\u8f03\u904b\u7b97\u7b26\uff1a<\/strong>\u7528\u65bc\u6bd4\u8f03\u5169\u500b\u503c\u7684\u904b\u7b97\u7b26\uff0c\u5305\u62ec\u7b49\u65bc (=)\u3001\u4e0d\u7b49\u65bc ( \u6216 !=)\u3001\u5927\u65bc (&gt;)\u3001\u5c0f\u65bc (=) \u548c\u5c0f\u65bc\u7b49\u65bc (&lt;=)\u3002<\/li>\n<li><strong>\u908f\u8f2f\u904b\u7b97\u7b26\uff1a<\/strong>\u7528\u65bc\u7d44\u5408\u591a\u500b\u689d\u4ef6\u7684\u904b\u7b97\u7b26\uff0c\u5305\u62ec AND\u3001OR \u548c NOT\u3002<\/li>\n<li><strong>\u4f4d\u5143\u904b\u7b97\u7b26\uff1a<\/strong>\u7528\u65bc\u4f4d\u5143\u64cd\u4f5c\u7684\u904b\u7b97\u7b26\uff0c\u5305\u62ec AND (&amp;)\u3001OR (|)\u3001NOT (~) \u548c XOR (^)\u3002<\/li>\n<li><strong>\u5b57\u4e32\u904b\u7b97\u7b26\uff1a<\/strong>\u7528\u65bc\u5b57\u4e32\u64cd\u4f5c\u7684\u904b\u7b97\u7b26\uff0c\u5982 CONCAT() \u7528\u65bc\u9023\u63a5\u5b57\u4e32\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-GKJVMCXnfL\">\u904b\u7b97\u7b26\u7684\u4f7f\u7528\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b OceanBase \u4e2d\u904b\u7b97\u7b26\u7684\u4f7f\u7528\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e7%ae%97%e8%a1%93%e9%81%8b%e7%ae%97%e7%ac%a6%e7%a4%ba%e4%be%8b-GKJVMCXnfL\">1. \u7b97\u8853\u904b\u7b97\u7b26\u793a\u4f8b<\/h3>\n<pre><code>\nSELECT price, quantity, price * quantity AS total\nFROM orders;\n<\/code><\/pre>\n<h3 id=\"2-%e6%af%94%e8%bc%83%e9%81%8b%e7%ae%97%e7%ac%a6%e7%a4%ba%e4%be%8b-GKJVMCXnfL\">2. \u6bd4\u8f03\u904b\u7b97\u7b26\u793a\u4f8b<\/h3>\n<pre><code>\nSELECT * \nFROM products \nWHERE price &gt; 100;\n<\/code><\/pre>\n<h3 id=\"3-%e9%82%8f%e8%bc%af%e9%81%8b%e7%ae%97%e7%ac%a6%e7%a4%ba%e4%be%8b-GKJVMCXnfL\">3. \u908f\u8f2f\u904b\u7b97\u7b26\u793a\u4f8b<\/h3>\n<pre><code>\nSELECT * \nFROM users \nWHERE age &gt; 18 AND status = 'active';\n<\/code><\/pre>\n<h3 id=\"4-%e4%bd%8d%e5%85%83%e9%81%8b%e7%ae%97%e7%ac%a6%e7%a4%ba%e4%be%8b-GKJVMCXnfL\">4. \u4f4d\u5143\u904b\u7b97\u7b26\u793a\u4f8b<\/h3>\n<pre><code>\nSELECT user_id \nFROM permissions \nWHERE (permission_id &amp; 1) = 1;\n<\/code><\/pre>\n<h3 id=\"5-%e5%ad%97%e4%b8%b2%e9%81%8b%e7%ae%97%e7%ac%a6%e7%a4%ba%e4%be%8b-GKJVMCXnfL\">5. \u5b57\u4e32\u904b\u7b97\u7b26\u793a\u4f8b<\/h3>\n<pre><code>\nSELECT CONCAT(first_name, ' ', last_name) AS full_name \nFROM employees;\n<\/code><\/pre>\n<h2 id=\"%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-GKJVMCXnfL\">\u904b\u7b97\u7b26\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 OceanBase \u7684\u904b\u7b97\u7b26\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u6578\u64da\u985e\u578b\u7684\u517c\u5bb9\u6027\uff1a\u5728\u9032\u884c\u6bd4\u8f03\u6216\u8a08\u7b97\u6642\uff0c\u904b\u7b97\u7b26\u5169\u5074\u7684\u6578\u64da\u985e\u578b\u5fc5\u9808\u517c\u5bb9\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u62ec\u865f\uff1a\u5728\u8907\u96dc\u7684\u67e5\u8a62\u4e2d\uff0c\u4f7f\u7528\u62ec\u865f\u53ef\u4ee5\u5e6b\u52a9\u660e\u78ba\u904b\u7b97\u7684\u512a\u5148\u9806\u5e8f\u3002<\/li>\n<li>\u6027\u80fd\u8003\u91cf\uff1a\u67d0\u4e9b\u904b\u7b97\u7b26\u5728\u5927\u6578\u64da\u96c6\u4e0a\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\uff0c\u5efa\u8b70\u5728\u8a2d\u8a08\u67e5\u8a62\u6642\u9032\u884c\u6027\u80fd\u6e2c\u8a66\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GKJVMCXnfL\">\u7e3d\u7d50<\/h2>\n<p>OceanBase \u7684\u904b\u7b97\u7b26\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u64cd\u4f5c\u80fd\u529b\uff0c\u7121\u8ad6\u662f\u5728\u6578\u64da\u67e5\u8a62\u9084\u662f\u6578\u64da\u8655\u7406\u65b9\u9762\uff0c\u90fd\u80fd\u5920\u9748\u6d3b\u61c9\u7528\u3002\u4e86\u89e3\u548c\u638c\u63e1\u9019\u4e9b\u904b\u7b97\u7b26\u7684\u4f7f\u7528\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u958b\u767c\u6548\u7387\u548c\u6578\u64da\u8655\u7406\u7684\u6e96\u78ba\u6027\u3002\u5982\u679c\u60a8\u5c0d\u65bc\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4f86\u90e8\u7f72\u60a8\u7684 OceanBase \u6578\u64da\u5eab\uff0c\u4eab\u53d7\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22OceanBase\u904b\u7b97\u7b26\u7684\u57fa\u672c\u6982\u5ff5\u8207\u61c9\u7528\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5229\u7528\u9019\u4e9b\u904b\u7b97\u7b26\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\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-160621","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160621","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=160621"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160621\/revisions"}],"predecessor-version":[{"id":160622,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160621\/revisions\/160622"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}