{"id":195079,"date":"2024-11-13T12:01:22","date_gmt":"2024-11-13T04:01:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195079\/"},"modified":"2024-11-13T12:01:23","modified_gmt":"2024-11-13T04:01:23","slug":"%e6%95%99%e6%82%a8%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8db2%e6%a2%9d%e4%bb%b6%e8%99%95%e7%90%86%e5%99%a8%e8%99%95%e7%90%86%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e9%81%8b%e8%a1%8c%e4%b8%ad%e7%9a%84sql","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195079\/","title":{"rendered":"\u6559\u60a8\u5982\u4f55\u4f7f\u7528DB2\u689d\u4ef6\u8655\u7406\u5668\u8655\u7406\u5b58\u5132\u904e\u7a0b\u904b\u884c\u4e2d\u7684SQL\u932f\u8aa4"},"content":{"rendered":"

\u6559\u60a8\u5982\u4f55\u4f7f\u7528DB2\u689d\u4ef6\u8655\u7406\u5668\u8655\u7406\u5b58\u5132\u904e\u7a0b\u904b\u884c\u4e2d\u7684SQL\u932f\u8aa4<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u932f\u8aa4\u8655\u7406\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u74b0\u7bc0\uff0c\u5c24\u5176\u662f\u5728\u4f7f\u7528IBM DB2\u6578\u64da\u5eab\u6642\u3002DB2\u63d0\u4f9b\u4e86\u689d\u4ef6\u8655\u7406\u5668\uff08Condition Handlers\uff09\uff0c\u4f7f\u958b\u767c\u8005\u80fd\u5920\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u6709\u6548\u5730\u6355\u7372\u548c\u8655\u7406SQL\u932f\u8aa4\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528DB2\u7684\u689d\u4ef6\u8655\u7406\u5668\u4f86\u8655\u7406\u5b58\u5132\u904e\u7a0b\u904b\u884c\u4e2d\u7684SQL\u932f\u8aa4\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

\u4ec0\u9ebc\u662fDB2\u689d\u4ef6\u8655\u7406\u5668\uff1f<\/h2>\n

DB2\u689d\u4ef6\u8655\u7406\u5668\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u63a7\u5236\u7d50\u69cb\uff0c\u5141\u8a31\u958b\u767c\u8005\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u6355\u7372\u548c\u8655\u7406\u7570\u5e38\u60c5\u6cc1\u3002\u7576SQL\u8a9e\u53e5\u57f7\u884c\u5931\u6557\u6642\uff0c\u689d\u4ef6\u8655\u7406\u5668\u53ef\u4ee5\u6839\u64da\u932f\u8aa4\u985e\u578b\u57f7\u884c\u76f8\u61c9\u7684\u8655\u7406\u908f\u8f2f\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528\u689d\u4ef6\u8655\u7406\u5668<\/h2>\n

\u5728DB2\u4e2d\uff0c\u689d\u4ef6\u8655\u7406\u5668\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

\nDECLARE CONTINUE HANDLER FOR SQLSTATE 'XXXX' \nBEGIN\n    -- \u932f\u8aa4\u8655\u7406\u908f\u8f2f\nEND;\n<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0c`SQLSTATE ‘XXXX’`\u662f\u60a8\u5e0c\u671b\u6355\u7372\u7684\u7279\u5b9a\u932f\u8aa4\u4ee3\u78bc\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528`CONTINUE`\u3001`EXIT`\u6216`UNDO`\u4f86\u6307\u5b9a\u932f\u8aa4\u8655\u7406\u7684\u884c\u70ba\u3002<\/p>\n
\u793a\u4f8b\uff1a\u6355\u7372\u7279\u5b9a\u7684SQL\u932f\u8aa4<\/h3>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u689d\u4ef6\u8655\u7406\u5668\u4f86\u6355\u7372\u548c\u8655\u7406SQL\u932f\u8aa4\uff1a<\/p>\n
\nCREATE PROCEDURE example_procedure()\nBEGIN\n    DECLARE EXIT HANDLER FOR SQLEXCEPTION\n    BEGIN\n        -- \u932f\u8aa4\u8655\u7406\u908f\u8f2f\uff0c\u4f8b\u5982\u8a18\u9304\u932f\u8aa4\n        INSERT INTO error_log (error_message) VALUES ('SQL\u932f\u8aa4\u767c\u751f');\n    END;\n\n    -- \u5617\u8a66\u57f7\u884c\u4e00\u500b\u53ef\u80fd\u6703\u5931\u6557\u7684SQL\u8a9e\u53e5\n    INSERT INTO my_table (column1) VALUES ('value1');\nEND;\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u5982\u679c`INSERT`\u8a9e\u53e5\u56e0\u70ba\u67d0\u7a2e\u539f\u56e0\u5931\u6557\uff0c\u689d\u4ef6\u8655\u7406\u5668\u5c07\u6355\u7372\u8a72\u932f\u8aa4\u4e26\u57f7\u884c\u932f\u8aa4\u8655\u7406\u908f\u8f2f\uff0c\u5c07\u932f\u8aa4\u4fe1\u606f\u8a18\u9304\u5230`error_log`\u8868\u4e2d\u3002<\/p>\n
\u591a\u500b\u689d\u4ef6\u8655\u7406\u5668\u7684\u4f7f\u7528<\/h2>\n
\u60a8\u53ef\u4ee5\u5728\u540c\u4e00\u5b58\u5132\u904e\u7a0b\u4e2d\u5b9a\u7fa9\u591a\u500b\u689d\u4ef6\u8655\u7406\u5668\uff0c\u4ee5\u6355\u7372\u4e0d\u540c\u985e\u578b\u7684\u932f\u8aa4\u3002\u4f8b\u5982\uff1a<\/p>\n
\nCREATE PROCEDURE multi_handler_procedure()\nBEGIN\n    DECLARE CONTINUE HANDLER FOR SQLSTATE '23505' -- \u552f\u4e00\u7d04\u675f\u9055\u53cd\n    BEGIN\n        INSERT INTO error_log (error_message) VALUES ('\u552f\u4e00\u7d04\u675f\u9055\u53cd');\n    END;\n\n    DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' -- \u7121\u6578\u64da\n    BEGIN\n        INSERT INTO error_log (error_message) VALUES ('\u7121\u6578\u64da');\n    END;\n\n    -- \u5617\u8a66\u57f7\u884c\u591a\u500bSQL\u8a9e\u53e5\n    INSERT INTO my_table (column1) VALUES ('value1');\n    SELECT * FROM my_table WHERE column1 = 'nonexistent_value';\nEND;\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u5b9a\u7fa9\u4e86\u5169\u500b\u689d\u4ef6\u8655\u7406\u5668\uff0c\u5206\u5225\u7528\u65bc\u6355\u7372\u552f\u4e00\u7d04\u675f\u9055\u53cd\u548c\u7121\u6578\u64da\u7684\u60c5\u6cc1\u3002\u9019\u6a23\u53ef\u4ee5\u91dd\u5c0d\u4e0d\u540c\u7684\u932f\u8aa4\u57f7\u884c\u4e0d\u540c\u7684\u8655\u7406\u908f\u8f2f\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u4f7f\u7528DB2\u7684\u689d\u4ef6\u8655\u7406\u5668\u53ef\u4ee5\u6709\u6548\u5730\u6355\u7372\u548c\u8655\u7406\u5b58\u5132\u904e\u7a0b\u4e2d\u7684SQL\u932f\u8aa4\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u901a\u904e\u5408\u7406\u5730\u8a2d\u8a08\u932f\u8aa4\u8655\u7406\u908f\u8f2f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u5728\u9762\u5c0d\u7570\u5e38\u60c5\u6cc1\u6642\u4ecd\u80fd\u6b63\u5e38\u904b\u884c\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684DB2\u6578\u64da\u5eab\uff0c\u4eab\u53d7\u7a69\u5b9a\u548c\u5b89\u5168\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528DB2\u689d\u4ef6\u8655\u7406\u5668\u6709\u6548\u8655\u7406\u5b58\u5132\u904e\u7a0b\u4e2d\u7684SQL\u932f\u8aa4\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6548\u7387\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-195079","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195079","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=195079"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195079\/revisions"}],"predecessor-version":[{"id":195080,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195079\/revisions\/195080"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195079"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195079"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195079"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}