{"id":60353,"date":"2024-10-13T02:09:15","date_gmt":"2024-10-12T18:09:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60353\/"},"modified":"2024-10-13T02:09:16","modified_gmt":"2024-10-12T18:09:16","slug":"db2-%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e7%95%b0%e5%b8%b8%e8%99%95%e7%90%86%e5%99%a8%e9%a1%9e%e5%9e%8b%e6%9c%89%e5%b9%be%e7%a8%ae%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60353\/","title":{"rendered":"DB2 \u5b58\u5132\u904e\u7a0b\u7684\u7570\u5e38\u8655\u7406\u5668\u985e\u578b\u6709\u5e7e\u7a2e\uff1f"},"content":{"rendered":"<h1 id=\"db2-%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e7%95%b0%e5%b8%b8%e8%99%95%e7%90%86%e5%99%a8%e9%a1%9e%e5%9e%8b%e6%9c%89%e5%b9%be%e7%a8%ae%ef%bc%9f-ucujEQgupr\">DB2 \u5b58\u5132\u904e\u7a0b\u7684\u7570\u5e38\u8655\u7406\u5668\u985e\u578b\u6709\u5e7e\u7a2e\uff1f<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u7570\u5e38\u8655\u7406\u662f\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u6027\u548c\u6578\u64da\u5b8c\u6574\u6027\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002IBM DB2 \u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u7570\u5e38\u8655\u7406\u5668\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u7ba1\u7406\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u7570\u5e38\u60c5\u6cc1\u3002\u672c\u6587\u5c07\u63a2\u8a0e DB2 \u5b58\u5132\u904e\u7a0b\u7684\u7570\u5e38\u8655\u7406\u5668\u985e\u578b\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e7%95%b0%e5%b8%b8%e8%99%95%e7%90%86%e5%99%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-ucujEQgupr\">\u7570\u5e38\u8655\u7406\u5668\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u7570\u5e38\u8655\u7406\u5668\u662f\u7528\u4f86\u6355\u6349\u548c\u8655\u7406\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u767c\u751f\u7684\u932f\u8aa4\u6216\u7570\u5e38\u60c5\u6cc1\u7684\u6a5f\u5236\u3002\u5728 DB2 \u4e2d\uff0c\u7570\u5e38\u8655\u7406\u5668\u901a\u5e38\u7528\u65bc\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u4ee5\u78ba\u4fdd\u5373\u4f7f\u5728\u51fa\u73fe\u932f\u8aa4\u7684\u60c5\u6cc1\u4e0b\uff0c\u7cfb\u7d71\u4e5f\u80fd\u5920\u6b63\u5e38\u904b\u884c\u6216\u9032\u884c\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\u3002<\/p>\n<h2 id=\"db2-%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e7%95%b0%e5%b8%b8%e8%99%95%e7%90%86%e5%99%a8%e9%a1%9e%e5%9e%8b-ucujEQgupr\">DB2 \u5b58\u5132\u904e\u7a0b\u7684\u7570\u5e38\u8655\u7406\u5668\u985e\u578b<\/h2>\n<p>\u5728 DB2 \u4e2d\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\u7570\u5e38\u8655\u7406\u5668\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>SQLSTATE<\/strong><\/li>\n<li><strong>SQLCODE<\/strong><\/li>\n<li><strong>EXCEPTION<\/strong><\/li>\n<li><strong>USER-DEFINED EXCEPTION<\/strong><\/li>\n<\/ul>\n<h3 id=\"1-sqlstate-ucujEQgupr\">1. SQLSTATE<\/h3>\n<p>SQLSTATE \u662f\u4e00\u500b\u4e94\u4f4d\u5b57\u7b26\u7684\u4ee3\u78bc\uff0c\u7528\u65bc\u8868\u793a SQL \u64cd\u4f5c\u7684\u7d50\u679c\u3002\u5b83\u63d0\u4f9b\u4e86\u66f4\u70ba\u8a73\u7d30\u7684\u932f\u8aa4\u4fe1\u606f\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u7570\u5e38\u7684\u5177\u9ad4\u539f\u56e0\u3002\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 SQLSTATE \u4f86\u6355\u6349\u548c\u8655\u7406\u7279\u5b9a\u7684\u932f\u8aa4\u60c5\u6cc1\u3002<\/p>\n<pre><code>\nBEGIN\n    -- \u4f60\u7684 SQL \u8a9e\u53e5\n    DECLARE CONTINUE HANDLER FOR SQLEXCEPTION\n    BEGIN\n        -- \u932f\u8aa4\u8655\u7406\u908f\u8f2f\n        SET @error_code = SQLSTATE;\n    END;\nEND;\n<\/code><\/pre>\n<h3 id=\"2-sqlcode-ucujEQgupr\">2. SQLCODE<\/h3>\n<p>SQLCODE \u662f\u4e00\u500b\u6574\u6578\u503c\uff0c\u8868\u793a SQL \u64cd\u4f5c\u7684\u7d50\u679c\u3002\u5b83\u7684\u503c\u53ef\u4ee5\u662f\u6b63\u6578\u3001\u8ca0\u6578\u6216\u96f6\uff0c\u5206\u5225\u8868\u793a\u6210\u529f\u3001\u8b66\u544a\u6216\u932f\u8aa4\u3002\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da SQLCODE \u7684\u503c\u4f86\u6c7a\u5b9a\u5f8c\u7e8c\u7684\u8655\u7406\u908f\u8f2f\u3002<\/p>\n<pre><code>\nBEGIN\n    -- \u4f60\u7684 SQL \u8a9e\u53e5\n    DECLARE CONTINUE HANDLER FOR SQLWARNING\n    BEGIN\n        -- \u8b66\u544a\u8655\u7406\u908f\u8f2f\n        SET @warning_code = SQLCODE;\n    END;\nEND;\n<\/code><\/pre>\n<h3 id=\"3-exception-ucujEQgupr\">3. EXCEPTION<\/h3>\n<p>EXCEPTION \u662f DB2 \u4e2d\u7684\u4e00\u7a2e\u901a\u7528\u7570\u5e38\u8655\u7406\u6a5f\u5236\u3002\u958b\u767c\u8005\u53ef\u4ee5\u5b9a\u7fa9\u7279\u5b9a\u7684\u7570\u5e38\u985e\u578b\uff0c\u4e26\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u9032\u884c\u6355\u6349\u548c\u8655\u7406\u3002\u9019\u7a2e\u65b9\u5f0f\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u9748\u6d3b\u6027\uff0c\u80fd\u5920\u91dd\u5c0d\u4e0d\u540c\u7684\u696d\u52d9\u9700\u6c42\u9032\u884c\u5b9a\u5236\u3002<\/p>\n<pre><code>\nBEGIN\n    -- \u4f60\u7684 SQL \u8a9e\u53e5\n    DECLARE EXIT HANDLER FOR SQLEXCEPTION\n    BEGIN\n        -- \u81ea\u5b9a\u7fa9\u7570\u5e38\u8655\u7406\u908f\u8f2f\n        ROLLBACK;\n    END;\nEND;\n<\/code><\/pre>\n<h3 id=\"4-user-defined-exception-ucujEQgupr\">4. USER-DEFINED EXCEPTION<\/h3>\n<p>\u7528\u6236\u81ea\u5b9a\u7fa9\u7570\u5e38\u5141\u8a31\u958b\u767c\u8005\u6839\u64da\u696d\u52d9\u908f\u8f2f\u5275\u5efa\u81ea\u5df1\u7684\u7570\u5e38\u985e\u578b\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u6355\u6349\u7279\u5b9a\u7684\u696d\u52d9\u932f\u8aa4\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<pre><code>\nDECLARE my_exception CONDITION FOR SQLSTATE '45000';\nBEGIN\n    -- \u4f60\u7684 SQL \u8a9e\u53e5\n    SIGNAL my_exception;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-ucujEQgupr\">\u7d50\u8ad6<\/h2>\n<p>\u5728 DB2 \u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u7570\u5e38\u8655\u7406\u5668\u7684\u4f7f\u7528\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528 SQLSTATE\u3001SQLCODE\u3001EXCEPTION \u548c\u7528\u6236\u81ea\u5b9a\u7fa9\u7570\u5e38\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u932f\u8aa4\u60c5\u6cc1\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002\u4e86\u89e3\u9019\u4e9b\u7570\u5e38\u8655\u7406\u5668\u7684\u7279\u6027\u548c\u4f7f\u7528\u65b9\u6cd5\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u958b\u767c\u6548\u7387\u548c\u7cfb\u7d71\u7684\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 DB2 \u5b58\u5132\u904e\u7a0b\u7684\u7570\u5e38\u8655\u7406\u5668\u985e\u578b\uff0c\u5305\u62ec SQLSTATE\u3001SQLCODE \u548c\u81ea\u5b9a\u7fa9\u7570\u5e38\u8655\u7406\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6548\u7387\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-60353","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60353","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=60353"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60353\/revisions"}],"predecessor-version":[{"id":60354,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60353\/revisions\/60354"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}