{"id":160623,"date":"2024-11-03T23:38:19","date_gmt":"2024-11-03T15:38:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160623\/"},"modified":"2024-11-03T23:38:20","modified_gmt":"2024-11-03T15:38:20","slug":"oceanbase%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%94%af%e6%8f%b4%e7%9a%84-sql-%e5%92%8c-pl-%e8%b3%87%e6%96%99%e9%a1%9e%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160623\/","title":{"rendered":"OCEANBASE\u6559\u7a0b\uff1aOceanBase \u652f\u63f4\u7684 SQL \u548c PL \u8cc7\u6599\u985e\u578b"},"content":{"rendered":"<h1 id=\"oceanbase%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e6%94%af%e6%8f%b4%e7%9a%84-sql-%e5%92%8c-pl-%e8%b3%87%e6%96%99%e9%a1%9e%e5%9e%8b-gMHswtjRmX\">OCEANBASE\u6559\u7a0b\uff1aOceanBase \u652f\u63f4\u7684 SQL \u548c PL \u8cc7\u6599\u985e\u578b<\/h1>\n<p>OceanBase \u662f\u4e00\u6b3e\u7531\u963f\u91cc\u5df4\u5df4\u96c6\u5718\u958b\u767c\u7684\u5206\u4f48\u5f0f\u95dc\u806f\u6578\u64da\u5eab\uff0c\u65e8\u5728\u63d0\u4f9b\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u64f4\u5c55\u6027\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u3002\u96a8\u8457\u5927\u6578\u64da\u548c\u96f2\u8a08\u7b97\u7684\u8208\u8d77\uff0cOceanBase \u9010\u6f38\u6210\u70ba\u4f01\u696d\u6578\u64da\u7ba1\u7406\u7684\u9996\u9078\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u652f\u63f4\u7684 SQL \u548c PL \u8cc7\u6599\u985e\u578b\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=\"oceanbase-%e6%94%af%e6%8f%b4%e7%9a%84-sql-%e8%b3%87%e6%96%99%e9%a1%9e%e5%9e%8b-gMHswtjRmX\">OceanBase \u652f\u63f4\u7684 SQL \u8cc7\u6599\u985e\u578b<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0cSQL \u8cc7\u6599\u985e\u578b\u4e3b\u8981\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 INT\u3001BIGINT\uff09\u3001\u6d6e\u9ede\u6578\u985e\u578b\uff08\u5982 FLOAT\u3001DOUBLE\uff09\u548c\u5341\u9032\u5236\u985e\u578b\uff08\u5982 DECIMAL\uff09\u3002\u9019\u4e9b\u985e\u578b\u9069\u7528\u65bc\u5b58\u5132\u5404\u7a2e\u6578\u5b57\u6578\u64da\u3002<\/li>\n<li><strong>\u5b57\u4e32\u985e\u578b\uff1a<\/strong>\u5305\u62ec CHAR\u3001VARCHAR \u548c TEXT\u3002CHAR \u548c VARCHAR \u7528\u65bc\u5b58\u5132\u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u4e32\uff0c\u800c TEXT \u5247\u9069\u5408\u5b58\u5132\u5927\u91cf\u6587\u672c\u6578\u64da\u3002<\/li>\n<li><strong>\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff1a<\/strong>\u5305\u62ec DATE\u3001TIME\u3001DATETIME \u548c TIMESTAMP\u3002\u9019\u4e9b\u985e\u578b\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\u4fe1\u606f\uff0c\u652f\u6301\u5404\u7a2e\u6642\u9593\u683c\u5f0f\u7684\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u5e03\u6797\u985e\u578b\uff1a<\/strong>\u4f7f\u7528 BOOLEAN \u4f86\u8868\u793a\u771f\u6216\u5047\uff0c\u9069\u5408\u7528\u65bc\u9700\u8981\u908f\u8f2f\u5224\u65b7\u7684\u5834\u666f\u3002<\/li>\n<\/ul>\n<h3 id=\"%e6%95%b8%e5%80%bc%e9%a1%9e%e5%9e%8b%e7%a4%ba%e4%be%8b-gMHswtjRmX\">\u6578\u503c\u985e\u578b\u793a\u4f8b<\/h3>\n<pre><code>\nCREATE TABLE example_numeric (\n    id INT PRIMARY KEY,\n    price DECIMAL(10, 2),\n    quantity INT\n);\n<\/code><\/pre>\n<h2 id=\"oceanbase-%e6%94%af%e6%8f%b4%e7%9a%84-pl-%e8%b3%87%e6%96%99%e9%a1%9e%e5%9e%8b-gMHswtjRmX\">OceanBase \u652f\u63f4\u7684 PL \u8cc7\u6599\u985e\u578b<\/h2>\n<p>\u9664\u4e86 SQL \u8cc7\u6599\u985e\u578b\uff0cOceanBase \u9084\u652f\u63f4 PL\uff08Procedural Language\uff09\u8cc7\u6599\u985e\u578b\uff0c\u9019\u4e9b\u8cc7\u6599\u985e\u578b\u4e3b\u8981\u7528\u65bc\u5b58\u5132\u7a0b\u5e8f\u548c\u51fd\u6578\u7684\u8b8a\u6578\u3002PL \u8cc7\u6599\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6574\u6578\u985e\u578b\uff1a<\/strong>\u8207 SQL \u4e2d\u7684\u6574\u6578\u985e\u578b\u76f8\u4f3c\uff0cPL \u4e2d\u7684\u6574\u6578\u985e\u578b\u4e5f\u5305\u62ec INT \u548c BIGINT\u3002<\/li>\n<li><strong>\u5b57\u4e32\u985e\u578b\uff1a<\/strong>PL \u4e2d\u7684\u5b57\u4e32\u985e\u578b\u901a\u5e38\u4f7f\u7528 VARCHAR \u548c CHAR\uff0c\u9019\u4e9b\u985e\u578b\u5728\u7a0b\u5e8f\u4e2d\u7528\u65bc\u8655\u7406\u6587\u672c\u6578\u64da\u3002<\/li>\n<li><strong>\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff1a<\/strong>PL \u4e2d\u7684\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\u8207 SQL \u4e2d\u7684\u985e\u4f3c\uff0c\u652f\u6301\u5404\u7a2e\u6642\u9593\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u8a18\u9304\u985e\u578b\uff1a<\/strong>PL \u652f\u63f4\u81ea\u5b9a\u7fa9\u8a18\u9304\u985e\u578b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u5b9a\u7fa9\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\u3002<\/li>\n<\/ul>\n<h3 id=\"pl-%e8%b3%87%e6%96%99%e9%a1%9e%e5%9e%8b%e7%a4%ba%e4%be%8b-gMHswtjRmX\">PL \u8cc7\u6599\u985e\u578b\u793a\u4f8b<\/h3>\n<pre><code>\nDECLARE\n    v_id INT;\n    v_name VARCHAR(100);\n    v_created_at DATETIME;\nBEGIN\n    v_id := 1;\n    v_name := 'Sample';\n    v_created_at := NOW();\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-gMHswtjRmX\">\u7d50\u8ad6<\/h2>\n<p>OceanBase \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6548\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u652f\u63f4\u591a\u7a2e SQL \u548c PL \u8cc7\u6599\u985e\u578b\uff0c\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002\u7121\u8ad6\u662f\u6578\u503c\u3001\u5b57\u4e32\u9084\u662f\u65e5\u671f\u6642\u9593\u985e\u578b\uff0cOceanBase \u90fd\u80fd\u5920\u6eff\u8db3\u4e0d\u540c\u5834\u666f\u4e0b\u7684\u9700\u6c42\u3002\u96a8\u8457\u5c0d\u5927\u6578\u64da\u548c\u9ad8\u53ef\u7528\u6027\u9700\u6c42\u7684\u589e\u52a0\uff0c\u638c\u63e1 OceanBase \u7684\u8cc7\u6599\u985e\u578b\u5c07\u6709\u52a9\u65bc\u958b\u767c\u8005\u5728\u6578\u64da\u7ba1\u7406\u4e0a\u53d6\u5f97\u66f4\u5927\u7684\u6210\u529f\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/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>\u63a2\u7d22 OceanBase \u6559\u7a0b\uff0c\u4e86\u89e3\u5176\u652f\u63f4\u7684 SQL \u548c PL \u8cc7\u6599\u985e\u578b\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u8207\u958b\u767c\u6280\u80fd\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-160623","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160623","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=160623"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160623\/revisions"}],"predecessor-version":[{"id":160624,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160623\/revisions\/160624"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}