{"id":160573,"date":"2024-11-03T23:13:21","date_gmt":"2024-11-03T15:13:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160573\/"},"modified":"2024-11-03T23:13:22","modified_gmt":"2024-11-03T15:13:22","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e5%84%aa%e5%85%88%e7%b4%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160573\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u6578\u64da\u985e\u578b\u512a\u5148\u7d1a"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e5%84%aa%e5%85%88%e7%b4%9a-rcMAkdeGWc\">OceanBase \u6559\u7a0b\uff1aOceanBase \u6578\u64da\u985e\u578b\u512a\u5148\u7d1a<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u985e\u578b\u7684\u9078\u64c7\u5c0d\u65bc\u6578\u64da\u7684\u5b58\u5132\u3001\u67e5\u8a62\u548c\u6027\u80fd\u6709\u8457\u81f3\u95dc\u91cd\u8981\u7684\u5f71\u97ff\u3002OceanBase \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u61c9\u7528\u9700\u6c42\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u7684\u6578\u64da\u985e\u578b\u53ca\u5176\u512a\u5148\u7d1a\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5728\u8a2d\u8a08\u6578\u64da\u6a21\u578b\u6642\u505a\u51fa\u66f4\u660e\u667a\u7684\u9078\u64c7\u3002<\/p>\n<h2 id=\"oceanbase-%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0-rcMAkdeGWc\">OceanBase \u7684\u6578\u64da\u985e\u578b\u6982\u8ff0<\/h2>\n<p>OceanBase \u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u4e3b\u8981\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u985e\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u503c\u985e\u578b\uff1a<\/strong>\u5305\u62ec\u6574\u6578\u985e\u578b\uff08\u5982 TINYINT\u3001SMALLINT\u3001INT\u3001BIGINT\uff09\u548c\u6d6e\u9ede\u6578\u985e\u578b\uff08\u5982 FLOAT\u3001DOUBLE\uff09\u3002\u9019\u4e9b\u985e\u578b\u9069\u5408\u7528\u65bc\u6578\u91cf\u8a08\u7b97\u548c\u7d71\u8a08\u5206\u6790\u3002<\/li>\n<li><strong>\u5b57\u7b26\u985e\u578b\uff1a<\/strong>\u5305\u62ec CHAR \u548c VARCHAR\uff0c\u9069\u5408\u7528\u65bc\u5b58\u5132\u6587\u672c\u6578\u64da\u3002CHAR \u662f\u56fa\u5b9a\u9577\u5ea6\uff0c\u800c VARCHAR \u662f\u53ef\u8b8a\u9577\u5ea6\uff0c\u6839\u64da\u5be6\u969b\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u985e\u578b\u53ef\u4ee5\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u3002<\/li>\n<li><strong>\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff1a<\/strong>\u5305\u62ec DATE\u3001TIME\u3001DATETIME \u548c TIMESTAMP\uff0c\u9019\u4e9b\u985e\u578b\u7528\u65bc\u5b58\u5132\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u5e03\u723e\u985e\u578b\uff1a<\/strong>\u7528\u65bc\u8868\u793a\u771f\u6216\u5047\u7684\u503c\uff0c\u901a\u5e38\u7528\u65bc\u689d\u4ef6\u5224\u65b7\u3002<\/li>\n<li><strong>JSON \u985e\u578b\uff1a<\/strong>\u652f\u6301\u5b58\u5132 JSON \u683c\u5f0f\u7684\u6578\u64da\uff0c\u9069\u5408\u7528\u65bc\u9700\u8981\u9748\u6d3b\u7d50\u69cb\u7684\u6578\u64da\u5b58\u5132\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e5%84%aa%e5%85%88%e7%b4%9a-rcMAkdeGWc\">\u6578\u64da\u985e\u578b\u7684\u512a\u5148\u7d1a<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u6578\u64da\u985e\u578b\u7684\u512a\u5148\u7d1a\u4e3b\u8981\u5f71\u97ff\u6578\u64da\u7684\u904b\u7b97\u548c\u6bd4\u8f03\u3002\u7576\u9032\u884c\u6578\u64da\u985e\u578b\u7684\u904b\u7b97\u6642\uff0cOceanBase \u6703\u6839\u64da\u6578\u64da\u985e\u578b\u7684\u512a\u5148\u7d1a\u81ea\u52d5\u9032\u884c\u985e\u578b\u8f49\u63db\u3002\u4ee5\u4e0b\u662f OceanBase \u4e2d\u6578\u64da\u985e\u578b\u7684\u512a\u5148\u7d1a\u6392\u5e8f\uff1a<\/p>\n<ol>\n<li><strong>\u6d6e\u9ede\u6578\u985e\u578b\uff1a<\/strong>FLOAT \u548c DOUBLE \u7684\u512a\u5148\u7d1a\u6700\u9ad8\uff0c\u9069\u5408\u9032\u884c\u9ad8\u7cbe\u5ea6\u7684\u8a08\u7b97\u3002<\/li>\n<li><strong>\u6574\u6578\u985e\u578b\uff1a<\/strong>\u6574\u6578\u985e\u578b\u7684\u512a\u5148\u7d1a\u6b21\u4e4b\uff0c\u5f9e TINYINT \u5230 BIGINT \u4f9d\u6b21\u905e\u6e1b\u3002<\/li>\n<li><strong>\u5b57\u7b26\u985e\u578b\uff1a<\/strong>CHAR \u548c VARCHAR \u7684\u512a\u5148\u7d1a\u8f03\u4f4e\uff0c\u901a\u5e38\u5728\u8207\u6578\u503c\u985e\u578b\u9032\u884c\u6bd4\u8f03\u6642\u6703\u88ab\u8f49\u63db\u70ba\u6578\u503c\u3002<\/li>\n<li><strong>\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff1a<\/strong>\u9019\u4e9b\u985e\u578b\u7684\u512a\u5148\u7d1a\u76f8\u5c0d\u8f03\u4f4e\uff0c\u4f46\u5728\u9032\u884c\u6642\u9593\u8a08\u7b97\u6642\u4ecd\u7136\u975e\u5e38\u91cd\u8981\u3002<\/li>\n<li><strong>\u5e03\u723e\u985e\u578b\uff1a<\/strong>\u5e03\u723e\u985e\u578b\u7684\u512a\u5148\u7d1a\u6700\u4f4e\uff0c\u901a\u5e38\u5728\u8207\u5176\u4ed6\u985e\u578b\u9032\u884c\u904b\u7b97\u6642\u6703\u88ab\u8f49\u63db\u70ba\u6574\u6578\uff080 \u6216 1\uff09\u3002<\/li>\n<\/ol>\n<h2 id=\"%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e8%bd%89%e6%8f%9b%e7%a4%ba%e4%be%8b-rcMAkdeGWc\">\u6578\u64da\u985e\u578b\u8f49\u63db\u793a\u4f8b<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u6578\u64da\u985e\u578b\u4e4b\u9593\u7684\u8f49\u63db\u662f\u81ea\u52d5\u9032\u884c\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u6578\u64da\u985e\u578b\u8f49\u63db\uff1a<\/p>\n<pre><code>SELECT \n    CAST('123' AS INT) AS converted_int, \n    CAST(123.45 AS DECIMAL(10, 2)) AS converted_decimal;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u5b57\u7b26\u4e32 &#8216;123&#8217; \u88ab\u8f49\u63db\u70ba\u6574\u6578\uff0c\u800c\u6d6e\u9ede\u6578 123.45 \u88ab\u8f49\u63db\u70ba\u5177\u6709\u5169\u4f4d\u5c0f\u6578\u7684\u5341\u9032\u5236\u6578\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-rcMAkdeGWc\">\u7d50\u8ad6<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u5b58\u5132\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3 OceanBase \u4e2d\u6578\u64da\u985e\u578b\u7684\u512a\u5148\u7d1a\u548c\u8f49\u63db\u898f\u5247\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u8a2d\u8a08\u6578\u64da\u6a21\u578b\u6642\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002\u901a\u904e\u5408\u7406\u9078\u64c7\u6578\u64da\u985e\u578b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\u7684\u6d6a\u8cbb\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6548\u7387\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c\u5176\u4ed6\u96f2\u670d\u52d9\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 OceanBase \u6578\u64da\u985e\u578b\u7684\u512a\u5148\u7d1a\uff0c\u638c\u63e1\u6578\u64da\u5eab\u8a2d\u8a08\u7684\u95dc\u9375\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u52a9\u529b\u958b\u767c\u8005\u66f4\u597d\u5730\u4f7f\u7528 OceanBase\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-160573","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160573","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=160573"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160573\/revisions"}],"predecessor-version":[{"id":160574,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160573\/revisions\/160574"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}