{"id":160539,"date":"2024-11-03T22:56:23","date_gmt":"2024-11-03T14:56:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160539\/"},"modified":"2024-11-03T22:56:24","modified_gmt":"2024-11-03T14:56:24","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%a8%a1%e5%bc%8f%e5%8c%b9%e9%85%8d%e6%a2%9d%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160539\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u6a21\u5f0f\u5339\u914d\u689d\u4ef6"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%a8%a1%e5%bc%8f%e5%8c%b9%e9%85%8d%e6%a2%9d%e4%bb%b6-xiZUPPtprJ\">OceanBase \u6559\u7a0b\uff1aOceanBase \u6a21\u5f0f\u5339\u914d\u689d\u4ef6<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u6280\u8853\u4e2d\uff0cOceanBase \u4f5c\u70ba\u4e00\u6b3e\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\u8b80\u5beb\u64cd\u4f5c\uff0c\u9084\u5177\u5099\u826f\u597d\u7684\u64f4\u5c55\u6027\u548c\u5bb9\u932f\u80fd\u529b\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u7684\u6a21\u5f0f\u5339\u914d\u689d\u4ef6\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728 OceanBase \u4e2d\u9032\u884c\u6578\u64da\u67e5\u8a62\u548c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%a8%a1%e5%bc%8f%e5%8c%b9%e9%85%8d%e6%a2%9d%e4%bb%b6%ef%bc%9f-xiZUPPtprJ\">\u4ec0\u9ebc\u662f\u6a21\u5f0f\u5339\u914d\u689d\u4ef6\uff1f<\/h2>\n<p>\u6a21\u5f0f\u5339\u914d\u689d\u4ef6\u662f\u6307\u5728\u67e5\u8a62\u6578\u64da\u6642\uff0c\u6839\u64da\u7279\u5b9a\u7684\u6a21\u5f0f\u4f86\u7be9\u9078\u6578\u64da\u7684\u689d\u4ef6\u3002\u9019\u7a2e\u65b9\u5f0f\u901a\u5e38\u7528\u65bc\u5b57\u7b26\u4e32\u7684\u67e5\u8a62\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u67e5\u627e\u7b26\u5408\u67d0\u7a2e\u683c\u5f0f\u6216\u7279\u5fb5\u7684\u6578\u64da\u6642\u3002OceanBase \u652f\u6301\u591a\u7a2e\u6a21\u5f0f\u5339\u914d\u7684\u8a9e\u6cd5\uff0c\u4e3b\u8981\u5305\u62ec LIKE\u3001REGEXP \u7b49\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-like-%e9%80%b2%e8%a1%8c%e6%a8%a1%e5%bc%8f%e5%8c%b9%e9%85%8d-xiZUPPtprJ\">\u4f7f\u7528 LIKE \u9032\u884c\u6a21\u5f0f\u5339\u914d<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0cLIKE \u662f\u6700\u5e38\u7528\u7684\u6a21\u5f0f\u5339\u914d\u64cd\u4f5c\u7b26\u3002\u5b83\u5141\u8a31\u4f7f\u7528\u901a\u914d\u7b26\u4f86\u9032\u884c\u6a21\u7cca\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f LIKE \u7684\u57fa\u672c\u7528\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>%<\/strong>\uff1a\u4ee3\u8868\u96f6\u500b\u6216\u591a\u500b\u5b57\u7b26\u3002<\/li>\n<li><strong>_<\/strong>\uff1a\u4ee3\u8868\u4e00\u500b\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\uff0c\u4e26\u5e0c\u671b\u67e5\u627e\u6240\u6709\u4ee5 &#8220;A&#8221; \u958b\u982d\u7684\u7528\u6236\u540d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username LIKE 'A%';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u7528\u6236\u540d\u4ee5 &#8220;A&#8221; \u958b\u982d\u7684\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-regexp-%e9%80%b2%e8%a1%8c%e6%ad%a3%e5%89%87%e8%a1%a8%e9%81%94%e5%bc%8f%e5%8c%b9%e9%85%8d-xiZUPPtprJ\">\u4f7f\u7528 REGEXP \u9032\u884c\u6b63\u5247\u8868\u9054\u5f0f\u5339\u914d<\/h2>\n<p>\u9664\u4e86 LIKE\uff0cOceanBase \u9084\u652f\u6301\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u9032\u884c\u66f4\u8907\u96dc\u7684\u6a21\u5f0f\u5339\u914d\u3002REGEXP \u64cd\u4f5c\u7b26\u5141\u8a31\u7528\u6236\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u4f86\u5b9a\u7fa9\u5339\u914d\u6a21\u5f0f\u3002\u9019\u5c0d\u65bc\u9700\u8981\u9032\u884c\u66f4\u9748\u6d3b\u67e5\u8a62\u7684\u60c5\u6cc1\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u67e5\u627e\u6240\u6709\u7528\u6236\u540d\u4e2d\u5305\u542b\u6578\u5b57\u7684\u7528\u6236\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username REGEXP '[0-9]';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u7528\u6236\u540d\u4e2d\u5305\u542b\u81f3\u5c11\u4e00\u500b\u6578\u5b57\u7684\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e7%b5%90%e5%90%88%e5%a4%9a%e5%80%8b%e6%a2%9d%e4%bb%b6%e9%80%b2%e8%a1%8c%e6%9f%a5%e8%a9%a2-xiZUPPtprJ\">\u7d50\u5408\u591a\u500b\u689d\u4ef6\u9032\u884c\u67e5\u8a62<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u7d93\u5e38\u9700\u8981\u7d50\u5408\u591a\u500b\u689d\u4ef6\u4f86\u9032\u884c\u67e5\u8a62\u3002OceanBase \u652f\u6301\u4f7f\u7528 AND \u548c OR \u4f86\u7d44\u5408\u591a\u500b\u6a21\u5f0f\u5339\u914d\u689d\u4ef6\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u67e5\u627e\u6240\u6709\u4ee5 &#8220;A&#8221; \u958b\u982d\u4e14\u5305\u542b\u6578\u5b57\u7684\u7528\u6236\u540d\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username LIKE 'A%' AND username REGEXP '[0-9]';<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u7b26\u5408\u9019\u5169\u500b\u689d\u4ef6\u7684\u7528\u6236\u540d\u3002<\/p>\n<h2 id=\"%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-xiZUPPtprJ\">\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u4f7f\u7528\u6a21\u5f0f\u5339\u914d\u689d\u4ef6\u6642\uff0c\u6027\u80fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002\u7279\u5225\u662f\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u9032\u884c\u6a21\u7cca\u67e5\u8a62\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u5efa\u8b70\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u5118\u91cf\u907f\u514d\u904e\u5ea6\u4f9d\u8cf4\u6a21\u5f0f\u5339\u914d\uff0c\u4e26\u8003\u616e\u4f7f\u7528\u7d22\u5f15\u4f86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xiZUPPtprJ\">\u7e3d\u7d50<\/h2>\n<p>OceanBase \u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6a21\u5f0f\u5339\u914d\u529f\u80fd\uff0c\u901a\u904e LIKE \u548c REGEXP \u7b49\u64cd\u4f5c\u7b26\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u67e5\u8a62\u548c\u7be9\u9078\u6578\u64da\u3002\u4e86\u89e3\u9019\u4e9b\u6a21\u5f0f\u5339\u914d\u689d\u4ef6\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u3002\u82e5\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u9078\u64c7\u6709\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\u9ad8\u6548\u80fd\u7684\u6578\u64da\u8655\u7406\u9ad4\u9a57\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 OceanBase \u6a21\u5f0f\u5339\u914d\u689d\u4ef6\u7684\u8a73\u7d30\u6559\u7a0b\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u5730\u4f7f\u7528\u6a21\u5f0f\u5339\u914d\u4f86\u512a\u5316\u6578\u64da\u67e5\u8a62\u548c\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-160539","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160539","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=160539"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160539\/revisions"}],"predecessor-version":[{"id":160540,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160539\/revisions\/160540"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160539"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160539"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}