{"id":60447,"date":"2024-10-13T02:56:20","date_gmt":"2024-10-12T18:56:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60447\/"},"modified":"2024-10-13T02:56:20","modified_gmt":"2024-10-12T18:56:20","slug":"db2%e5%89%b5%e5%bb%ba%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%b6%93%e5%b8%b8%e8%a6%81%e9%81%87%e5%88%b0%e7%9a%84%e4%b8%80%e4%ba%9b%e9%8c%af%e8%aa%a4%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60447\/","title":{"rendered":"DB2\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u7d93\u5e38\u8981\u9047\u5230\u7684\u4e00\u4e9b\u932f\u8aa4\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"

DB2\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u7d93\u5e38\u8981\u9047\u5230\u7684\u4e00\u4e9b\u932f\u8aa4<\/h1>\n

\u5728\u4f7f\u7528IBM DB2\u6578\u64da\u5eab\u6642\uff0c\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u500b\u5e38\u898b\u7684\u4efb\u52d9\u3002\u7136\u800c\uff0c\u958b\u767c\u8005\u5728\u9019\u500b\u904e\u7a0b\u4e2d\u7d93\u5e38\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u5275\u5efa\u548c\u7ba1\u7406\u5b58\u5132\u904e\u7a0b\u3002<\/p>\n

1. \u8a9e\u6cd5\u932f\u8aa4<\/h2>\n

\u8a9e\u6cd5\u932f\u8aa4\u662f\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u6642\u6700\u5e38\u898b\u7684\u554f\u984c\u4e4b\u4e00\u3002\u9019\u4e9b\u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u62fc\u5beb\u932f\u8aa4\u3001\u7f3a\u5c11\u5206\u865f\u6216\u62ec\u865f\u4e0d\u5339\u914d\u7b49\u539f\u56e0\u9020\u6210\u7684\u3002<\/p>\n

CREATE PROCEDURE myProcedure\nBEGIN\n    SELECT * FROM myTable\nEND; -- \u932f\u8aa4\uff1a\u7f3a\u5c11\u5206\u865f\n<\/code><\/pre>\n
\u89e3\u6c7a\u65b9\u6848\u662f\u4ed4\u7d30\u6aa2\u67e5\u8a9e\u6cd5\uff0c\u78ba\u4fdd\u6240\u6709\u7684\u8a9e\u53e5\u90fd\u6b63\u78ba\u7d50\u675f\uff0c\u4e26\u4e14\u6240\u6709\u7684\u62ec\u865f\u90fd\u6b63\u78ba\u914d\u5c0d\u3002<\/p>\n
2. \u53c3\u6578\u985e\u578b\u4e0d\u5339\u914d<\/h2>\n
\u5728\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u6642\uff0c\u53c3\u6578\u985e\u578b\u7684\u5b9a\u7fa9\u5fc5\u9808\u8207\u8abf\u7528\u6642\u63d0\u4f9b\u7684\u985e\u578b\u4e00\u81f4\u3002\u5982\u679c\u4e0d\u5339\u914d\uff0c\u5c07\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/p>\n
CREATE PROCEDURE myProcedure(IN myParam INT)\nBEGIN\n    -- \u932f\u8aa4\uff1a\u5982\u679c\u8abf\u7528\u6642\u50b3\u5165\u4e86\u5b57\u7b26\u4e32\u985e\u578b\u7684\u53c3\u6578\n    SELECT * FROM myTable WHERE id = myParam;\nEND;\n<\/code><\/pre>\n
\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u932f\u8aa4\uff0c\u958b\u767c\u8005\u61c9\u8a72\u5728\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u4e4b\u524d\uff0c\u78ba\u8a8d\u50b3\u5165\u7684\u53c3\u6578\u985e\u578b\u8207\u5b9a\u7fa9\u4e00\u81f4\u3002<\/p>\n
3. \u6b0a\u9650\u554f\u984c<\/h2>\n
\u5728DB2\u4e2d\uff0c\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u9700\u8981\u7279\u5b9a\u7684\u6b0a\u9650\u3002\u5982\u679c\u7528\u6236\u6c92\u6709\u8db3\u5920\u7684\u6b0a\u9650\uff0c\u5c07\u7121\u6cd5\u6210\u529f\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u3002<\/p>\n
\u89e3\u6c7a\u65b9\u6848\u662f\u6aa2\u67e5\u7528\u6236\u7684\u6b0a\u9650\uff0c\u78ba\u4fdd\u5176\u64c1\u6709\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u7684\u6b0a\u9650\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u6aa2\u67e5\u6b0a\u9650\uff1a<\/p>\n
SELECT * FROM SYSCAT.ROLES WHERE ROLE = 'myRole';\n<\/code><\/pre>\n
4. \u4f9d\u8cf4\u5c0d\u8c61\u4e0d\u5b58\u5728<\/h2>\n
\u5982\u679c\u5b58\u5132\u904e\u7a0b\u4e2d\u5f15\u7528\u4e86\u4e0d\u5b58\u5728\u7684\u8868\u6216\u8996\u5716\uff0c\u5c07\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u6578\u64da\u5eab\u7d50\u69cb\u8b8a\u66f4\u5f8c\uff0c\u958b\u767c\u8005\u672a\u80fd\u53ca\u6642\u66f4\u65b0\u5b58\u5132\u904e\u7a0b\u3002<\/p>\n
CREATE PROCEDURE myProcedure()\nBEGIN\n    SELECT * FROM nonExistentTable; -- \u932f\u8aa4\uff1a\u8868\u4e0d\u5b58\u5728\nEND;\n<\/code><\/pre>\n
\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u958b\u767c\u8005\u61c9\u5b9a\u671f\u6aa2\u67e5\u5b58\u5132\u904e\u7a0b\u4e2d\u5f15\u7528\u7684\u6240\u6709\u5c0d\u8c61\uff0c\u78ba\u4fdd\u5b83\u5011\u5b58\u5728\u4e14\u53ef\u7528\u3002<\/p>\n
5. \u4e8b\u52d9\u63a7\u5236\u932f\u8aa4<\/h2>\n
\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u4e8b\u52d9\u63a7\u5236\uff08\u5982COMMIT\u548cROLLBACK\uff09\u6642\uff0c\u5fc5\u9808\u5c0f\u5fc3\u3002\u932f\u8aa4\u7684\u4f7f\u7528\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u610f\u5916\u7684\u6578\u64da\u4e1f\u5931\u3002<\/p>\n
CREATE PROCEDURE myProcedure()\nBEGIN\n    START TRANSACTION;\n    -- \u932f\u8aa4\uff1a\u672a\u6b63\u78ba\u8655\u7406\u4e8b\u52d9\n    COMMIT; -- \u5982\u679c\u4e2d\u9014\u51fa\u73fe\u932f\u8aa4\uff0c\u61c9\u8a72ROLLBACK\nEND;\n<\/code><\/pre>\n
\u958b\u767c\u8005\u61c9\u8a72\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4ee5\u78ba\u4fdd\u4e8b\u52d9\u7684\u6b63\u78ba\u6027\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728DB2\u4e2d\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u591a\u7a2e\u932f\u8aa4\uff0c\u5305\u62ec\u8a9e\u6cd5\u932f\u8aa4\u3001\u53c3\u6578\u985e\u578b\u4e0d\u5339\u914d\u3001\u6b0a\u9650\u554f\u984c\u3001\u4f9d\u8cf4\u5c0d\u8c61\u4e0d\u5b58\u5728\u4ee5\u53ca\u4e8b\u52d9\u63a7\u5236\u932f\u8aa4\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u8a9e\u6cd5\u3001\u78ba\u8a8d\u53c3\u6578\u985e\u578b\u3001\u6aa2\u67e5\u6b0a\u9650\u3001\u78ba\u4fdd\u4f9d\u8cf4\u5c0d\u8c61\u5b58\u5728\u4ee5\u53ca\u6b63\u78ba\u4f7f\u7528\u4e8b\u52d9\u63a7\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u9019\u4e9b\u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n
\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u74b0\u5883\u4f86\u904b\u884c\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u4f9b\u9ad8\u6548\u80fd\u548c\u53ef\u9760\u6027\uff0c\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22DB2\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u6642\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u5305\u62ec\u8a9e\u6cd5\u554f\u984c\u3001\u6b0a\u9650\u4e0d\u8db3\u53ca\u6027\u80fd\u5f71\u97ff\uff0c\u52a9\u60a8\u8f15\u9b06\u6392\u67e5\u8207\u89e3\u6c7a\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-60447","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60447","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=60447"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60447\/revisions"}],"predecessor-version":[{"id":60448,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60447\/revisions\/60448"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}