{"id":60581,"date":"2024-10-13T04:03:19","date_gmt":"2024-10-12T20:03:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60581\/"},"modified":"2024-10-13T04:03:19","modified_gmt":"2024-10-12T20:03:19","slug":"db2%e6%89%b9%e9%87%8f%e5%9f%b7%e8%a1%8csql%e8%85%b3%e6%9c%ac%e7%9a%84%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60581\/","title":{"rendered":"DB2\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\u7684\u5be6\u73fe"},"content":{"rendered":"<h1 id=\"db2%e6%89%b9%e9%87%8f%e5%9f%b7%e8%a1%8csql%e8%85%b3%e6%9c%ac%e7%9a%84%e5%af%a6%e7%8f%be-sjFtyVInwb\">DB2\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\u7684\u5be6\u73fe<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\u662f\u4e00\u9805\u5e38\u898b\u7684\u9700\u6c42\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9032\u884c\u5927\u91cf\u6578\u64da\u64cd\u4f5c\u6216\u66f4\u65b0\u6642\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728DB2\u4e2d\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"db2%e7%92%b0%e5%a2%83%e8%a8%ad%e7%bd%ae-sjFtyVInwb\">DB2\u74b0\u5883\u8a2d\u7f6e<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u78ba\u4fdd\u60a8\u5df2\u7d93\u5b89\u88dd\u4e86DB2\u6578\u64da\u5eab\u4e26\u914d\u7f6e\u597d\u74b0\u5883\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528DB2\u7684\u547d\u4ee4\u884c\u5de5\u5177\u6216\u5716\u5f62\u754c\u9762\u4f86\u57f7\u884cSQL\u8173\u672c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u74b0\u5883\u8a2d\u7f6e\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u5b89\u88ddDB2\u6578\u64da\u5eab\u3002<\/li>\n<li>\u8a2d\u7f6eDB2\u74b0\u5883\u8b8a\u91cf\uff0c\u4f8b\u5982\uff1a<code>DB2INSTANCE<\/code>\u3002<\/li>\n<li>\u555f\u52d5DB2\u5be6\u4f8b\uff1a<code>db2 start<\/code>\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8db2%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%b7%a5%e5%85%b7%e5%9f%b7%e8%a1%8csql%e8%85%b3%e6%9c%ac-sjFtyVInwb\">\u4f7f\u7528DB2\u547d\u4ee4\u884c\u5de5\u5177\u57f7\u884cSQL\u8173\u672c<\/h2>\n<p>DB2\u63d0\u4f9b\u4e86\u547d\u4ee4\u884c\u5de5\u5177\u4f86\u57f7\u884cSQL\u8173\u672c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u57f7\u884c\u4e00\u500bSQL\u8173\u672c\u6587\u4ef6\uff1a<\/p>\n<pre><code>db2 -tvf your_script.sql<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>-t<\/code>\u9078\u9805\u8868\u793a\u5728\u6bcf\u500b\u8a9e\u53e5\u7d50\u5c3e\u8655\u4f7f\u7528\u5206\u865f\u4f5c\u70ba\u7d50\u675f\u7b26\uff0c\u800c<code>-v<\/code>\u9078\u9805\u5247\u8868\u793a\u986f\u793a\u57f7\u884c\u904e\u7a0b\u4e2d\u7684\u8a73\u7d30\u4fe1\u606f\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e8%a1%a8%e5%92%8c%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-sjFtyVInwb\">\u793a\u4f8b\uff1a\u5275\u5efa\u8868\u548c\u63d2\u5165\u6578\u64da<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684SQL\u8173\u672c\u793a\u4f8b\uff0c\u8a72\u8173\u672c\u5275\u5efa\u4e00\u500b\u8868\u4e26\u63d2\u5165\u4e00\u4e9b\u6578\u64da\uff1a<\/p>\n<pre><code>CREATE TABLE employees (\n    id INT PRIMARY KEY,\n    name VARCHAR(100),\n    position VARCHAR(100)\n);\n\nINSERT INTO employees (id, name, position) VALUES (1, 'Alice', 'Manager');\nINSERT INTO employees (id, name, position) VALUES (2, 'Bob', 'Developer');\n<\/code><\/pre>\n<p>\u5c07\u4e0a\u8ff0\u4ee3\u78bc\u4fdd\u5b58\u70ba<code>create_employees.sql<\/code>\uff0c\u7136\u5f8c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u57f7\u884c\uff1a<\/p>\n<pre><code>db2 -tvf create_employees.sql<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8db2%e7%9a%84sql%e5%9f%b7%e8%a1%8c%e8%a8%88%e5%8a%83-sjFtyVInwb\">\u4f7f\u7528DB2\u7684SQL\u57f7\u884c\u8a08\u5283<\/h2>\n<p>\u5728\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\u6642\uff0c\u8003\u616e\u5230\u6027\u80fd\u512a\u5316\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002DB2\u63d0\u4f9b\u4e86SQL\u57f7\u884c\u8a08\u5283\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5206\u6790\u548c\u512a\u5316SQL\u8a9e\u53e5\u7684\u57f7\u884c\u6548\u7387\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770bSQL\u57f7\u884c\u8a08\u5283\uff1a<\/p>\n<pre><code>db2 explain plan for your_sql_statement<\/code><\/pre>\n<p>\u9019\u5c07\u751f\u6210\u4e00\u500b\u57f7\u884c\u8a08\u5283\uff0c\u5e6b\u52a9\u60a8\u4e86\u89e3DB2\u5982\u4f55\u57f7\u884c\u8a72\u8a9e\u53e5\uff0c\u4e26\u63d0\u4f9b\u512a\u5316\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8db2%e7%9a%84%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%e5%8a%9f%e8%83%bd-sjFtyVInwb\">\u4f7f\u7528DB2\u7684\u6279\u91cf\u63d2\u5165\u529f\u80fd<\/h2>\n<p>\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u4f7f\u7528\u6279\u91cf\u63d2\u5165\u529f\u80fd\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002DB2\u652f\u6301\u4f7f\u7528<code>INSERT INTO ... SELECT<\/code>\u8a9e\u53e5\u4f86\u6279\u91cf\u63d2\u5165\u6578\u64da\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>INSERT INTO target_table (column1, column2)\nSELECT column1, column2 FROM source_table WHERE condition;\n<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u4e00\u6b21\u6027\u5c07\u7b26\u5408\u689d\u4ef6\u7684\u6578\u64da\u5f9e\u6e90\u8868\u63d2\u5165\u5230\u76ee\u6a19\u8868\u4e2d\uff0c\u5f9e\u800c\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86%e5%92%8c%e6%97%a5%e8%aa%8c%e8%a8%98%e9%8c%84-sjFtyVInwb\">\u932f\u8aa4\u8655\u7406\u548c\u65e5\u8a8c\u8a18\u9304<\/h2>\n<p>\u5728\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002DB2\u63d0\u4f9b\u4e86\u932f\u8aa4\u4ee3\u78bc\u548c\u65e5\u8a8c\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u60a8\u8ffd\u8e64\u57f7\u884c\u904e\u7a0b\u4e2d\u7684\u554f\u984c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u6700\u8fd1\u7684\u932f\u8aa4\uff1a<\/p>\n<pre><code>db2 get db cfg for your_database<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u5efa\u8b70\u5728SQL\u8173\u672c\u4e2d\u6dfb\u52a0\u932f\u8aa4\u8655\u7406\u908f\u8f2f\uff0c\u4f8b\u5982\u4f7f\u7528<code>BEGIN<\/code>\u548c<code>ROLLBACK<\/code>\u8a9e\u53e5\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sjFtyVInwb\">\u7e3d\u7d50<\/h2>\n<p>\u5728DB2\u4e2d\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u9ad8\u6548\u5730\u8655\u7406\u5927\u91cf\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528DB2\u7684\u547d\u4ee4\u884c\u5de5\u5177\u3001SQL\u57f7\u884c\u8a08\u5283\u3001\u6279\u91cf\u63d2\u5165\u529f\u80fd\u4ee5\u53ca\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u60a8\u53ef\u4ee5\u512a\u5316\u6578\u64da\u64cd\u4f5c\u7684\u6548\u7387\u548c\u53ef\u9760\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728DB2\u4e2d\u6279\u91cf\u57f7\u884cSQL\u8173\u672c\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u6d41\u7a0b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60581","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60581","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=60581"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60581\/revisions"}],"predecessor-version":[{"id":60582,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60581\/revisions\/60582"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}