{"id":160239,"date":"2024-11-03T21:26:20","date_gmt":"2024-11-03T13:26:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160239\/"},"modified":"2024-11-03T21:26:21","modified_gmt":"2024-11-03T13:26:21","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-sql-%e8%aa%bf%e5%84%aa%e5%9f%ba%e6%9c%ac%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160239\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase SQL \u8abf\u512a\u57fa\u672c\u6d41\u7a0b"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-sql-%e8%aa%bf%e5%84%aa%e5%9f%ba%e6%9c%ac%e6%b5%81%e7%a8%8b-zYzQYzlmCd\">OceanBase \u6559\u7a0b\uff1aOceanBase SQL \u8abf\u512a\u57fa\u672c\u6d41\u7a0b<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002OceanBase \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684 SQL \u8abf\u512a\u529f\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39 OceanBase SQL \u8abf\u512a\u7684\u57fa\u672c\u6d41\u7a0b\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-oceanbase%ef%bc%9f-zYzQYzlmCd\">\u4ec0\u9ebc\u662f OceanBase\uff1f<\/h2>\n<p>OceanBase \u662f\u963f\u91cc\u5df4\u5df4\u96c6\u5718\u958b\u767c\u7684\u4e00\u6b3e\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u65e8\u5728\u652f\u6301\u5927\u898f\u6a21\u7684\u5728\u7dda\u4ea4\u6613\u8655\u7406\uff08OLTP\uff09\u548c\u5728\u7dda\u5206\u6790\u8655\u7406\uff08OLAP\uff09\u3002\u5b83\u5177\u5099\u9ad8\u53ef\u7528\u6027\u3001\u53ef\u64f4\u5c55\u6027\u548c\u5f37\u4e00\u81f4\u6027\uff0c\u9069\u5408\u7528\u65bc\u91d1\u878d\u3001\u96fb\u5546\u7b49\u884c\u696d\u3002<\/p>\n<h2 id=\"sql-%e8%aa%bf%e5%84%aa%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-zYzQYzlmCd\">SQL \u8abf\u512a\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0cSQL \u67e5\u8a62\u7684\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002\u8abf\u512a SQL \u67e5\u8a62\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u97ff\u61c9\u901f\u5ea6\uff0c\u6e1b\u5c11\u8cc7\u6e90\u6d88\u8017\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684 SQL \u8abf\u512a\u65b9\u6cd5\uff1a<\/p>\n<h2 id=\"oceanbase-sql-%e8%aa%bf%e5%84%aa%e5%9f%ba%e6%9c%ac%e6%b5%81%e7%a8%8b-zYzQYzlmCd\">OceanBase SQL \u8abf\u512a\u57fa\u672c\u6d41\u7a0b<\/h2>\n<h3 id=\"1-%e7%a2%ba%e5%ae%9a%e6%80%a7%e8%83%bd%e7%93%b6%e9%a0%b8-zYzQYzlmCd\">1. \u78ba\u5b9a\u6027\u80fd\u74f6\u9838<\/h3>\n<p>\u5728\u9032\u884c SQL \u8abf\u512a\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u5b9a\u6027\u80fd\u74f6\u9838\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u9032\u884c\u5206\u6790\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 OceanBase \u63d0\u4f9b\u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\uff0c\u67e5\u770b\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\u548c\u8cc7\u6e90\u4f7f\u7528\u60c5\u6cc1\u3002<\/li>\n<li>\u5206\u6790\u6162\u67e5\u8a62\u65e5\u8a8c\uff0c\u627e\u51fa\u57f7\u884c\u6642\u9593\u8f03\u9577\u7684 SQL \u8a9e\u53e5\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e5%88%86%e6%9e%90%e5%9f%b7%e8%a1%8c%e8%a8%88%e5%8a%83-zYzQYzlmCd\">2. \u5206\u6790\u57f7\u884c\u8a08\u5283<\/h3>\n<p>\u57f7\u884c\u8a08\u5283\u662f\u6578\u64da\u5eab\u57f7\u884c SQL \u67e5\u8a62\u7684\u5177\u9ad4\u6b65\u9a5f\u3002\u901a\u904e\u5206\u6790\u57f7\u884c\u8a08\u5283\uff0c\u53ef\u4ee5\u4e86\u89e3\u6578\u64da\u5eab\u662f\u5982\u4f55\u8655\u7406\u67e5\u8a62\u7684\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u57f7\u884c\u8a08\u5283\uff1a<\/p>\n<pre><code>EXPLAIN SELECT * FROM your_table WHERE condition;<\/code><\/pre>\n<p>\u6839\u64da\u57f7\u884c\u8a08\u5283\u7684\u7d50\u679c\uff0c\u6aa2\u67e5\u662f\u5426\u5b58\u5728\u5168\u8868\u6383\u63cf\u3001\u7d22\u5f15\u672a\u4f7f\u7528\u7b49\u554f\u984c\u3002<\/p>\n<h3 id=\"3-%e5%84%aa%e5%8c%96-sql-%e8%aa%9e%e5%8f%a5-zYzQYzlmCd\">3. \u512a\u5316 SQL \u8a9e\u53e5<\/h3>\n<p>\u6839\u64da\u57f7\u884c\u8a08\u5283\u7684\u5206\u6790\u7d50\u679c\uff0c\u5c0d SQL \u8a9e\u53e5\u9032\u884c\u512a\u5316\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u512a\u5316\u6280\u5de7\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u7d22\u5f15\uff1a\u78ba\u4fdd\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5217\u6709\u9069\u7576\u7684\u7d22\u5f15\uff0c\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li>\u907f\u514d SELECT *\uff1a\u53ea\u9078\u64c7\u9700\u8981\u7684\u5217\uff0c\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\u3002<\/li>\n<li>\u4f7f\u7528 JOIN \u800c\u975e\u5b50\u67e5\u8a62\uff1a\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528 JOIN \u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"4-%e8%aa%bf%e6%95%b4%e6%95%b8%e6%93%9a%e5%ba%ab%e9%85%8d%e7%bd%ae-zYzQYzlmCd\">4. \u8abf\u6574\u6578\u64da\u5eab\u914d\u7f6e<\/h3>\n<p>\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\uff0c\u8abf\u6574 OceanBase \u7684\u914d\u7f6e\u53c3\u6578\uff0c\u4f8b\u5982\u5167\u5b58\u5206\u914d\u3001\u9023\u63a5\u6578\u91cf\u7b49\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7576\u524d\u914d\u7f6e\uff1a<\/p>\n<pre><code>SHOW VARIABLES;<\/code><\/pre>\n<h3 id=\"5-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-zYzQYzlmCd\">5. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u9032\u884c\u8abf\u512a\u5f8c\uff0c\u52d9\u5fc5\u9032\u884c\u6e2c\u8a66\u4ee5\u9a57\u8b49\u6027\u80fd\u7684\u63d0\u5347\u3002\u53ef\u4ee5\u4f7f\u7528\u57fa\u6e96\u6e2c\u8a66\u5de5\u5177\uff0c\u5c0d\u6bd4\u8abf\u512a\u524d\u5f8c\u7684\u6027\u80fd\u6307\u6a19\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-zYzQYzlmCd\">\u7d50\u8ad6<\/h2>\n<p>OceanBase \u7684 SQL \u8abf\u512a\u662f\u4e00\u500b\u7cfb\u7d71\u5316\u7684\u904e\u7a0b\uff0c\u901a\u904e\u78ba\u5b9a\u6027\u80fd\u74f6\u9838\u3001\u5206\u6790\u57f7\u884c\u8a08\u5283\u3001\u512a\u5316 SQL \u8a9e\u53e5\u3001\u8abf\u6574\u6578\u64da\u5eab\u914d\u7f6e\u4ee5\u53ca\u6e2c\u8a66\u9a57\u8b49\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u6301\u7e8c\u7684\u8abf\u512a\u5c07\u662f\u78ba\u4fdd\u7cfb\u7d71\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 OceanBase SQL \u8abf\u512a\u7684\u57fa\u672c\u6d41\u7a0b\uff0c\u5b78\u7fd2\u5982\u4f55\u63d0\u5347\u67e5\u8a62\u6027\u80fd\uff0c\u512a\u5316\u6578\u64da\u5eab\u6548\u7387\uff0c\u5be6\u73fe\u6700\u4f73\u5316\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-160239","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160239","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=160239"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160239\/revisions"}],"predecessor-version":[{"id":160240,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160239\/revisions\/160240"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}