{"id":60935,"date":"2024-10-13T07:03:15","date_gmt":"2024-10-12T23:03:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60935\/"},"modified":"2024-10-13T07:03:15","modified_gmt":"2024-10-12T23:03:15","slug":"db2%e6%80%a7%e8%83%bd%e8%aa%bf%e5%84%aa%e5%b8%b8%e5%87%ba%e7%8f%be%e7%9a%8412%e5%80%8b%e7%96%91%e9%9b%a3%e5%95%8f%e9%a1%8c%e5%88%97%e8%88%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60935\/","title":{"rendered":"DB2\u6027\u80fd\u8abf\u512a\u5e38\u51fa\u73fe\u768412\u500b\u7591\u96e3\u554f\u984c\u5217\u8209"},"content":{"rendered":"

DB2\u6027\u80fd\u8abf\u512a\u5e38\u51fa\u73fe\u768412\u500b\u7591\u96e3\u554f\u984c\u5217\u8209<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u56e0\u5176\u7a69\u5b9a\u6027\u548c\u9ad8\u6548\u80fd\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0cDB2\u7684\u6027\u80fd\u8abf\u512a\u6210\u70ba\u4e00\u500b\u4e0d\u53ef\u5ffd\u8996\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u5217\u820912\u500b\u5e38\u898b\u7684DB2\u6027\u80fd\u8abf\u512a\u7591\u96e3\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n

1. \u67e5\u8a62\u6027\u80fd\u4e0d\u4f73<\/h2>\n

\u67e5\u8a62\u6027\u80fd\u4e0d\u4f73\u662fDB2\u7528\u6236\u6700\u5e38\u9047\u5230\u7684\u554f\u984c\u4e4b\u4e00\u3002\u9019\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u7576\u7684\u7d22\u5f15\u8a2d\u7f6e\u6216\u67e5\u8a62\u8a08\u5283\u4e0d\u4f73\u6240\u5c0e\u81f4\u7684\u3002\u4f7f\u7528EXPLAIN<\/code>\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u4e26\u6839\u64da\u9700\u8981\u8abf\u6574\u7d22\u5f15\u3002<\/p>\n

2. \u9396\u5b9a\u554f\u984c<\/h2>\n

\u7576\u591a\u500b\u7528\u6236\u540c\u6642\u8a2a\u554f\u6578\u64da\u6642\uff0c\u9396\u5b9a\u554f\u984c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u53ef\u4ee5\u901a\u904e\u8abf\u6574\u9396\u5b9a\u7c92\u5ea6\u6216\u4f7f\u7528\u884c\u7d1a\u9396\u4f86\u6e1b\u5c11\u9396\u5b9a\u885d\u7a81\u3002<\/p>\n

3. \u8a18\u61b6\u9ad4\u914d\u7f6e\u4e0d\u7576<\/h2>\n

DB2\u7684\u6027\u80fd\u8207\u8a18\u61b6\u9ad4\u914d\u7f6e\u5bc6\u5207\u76f8\u95dc\u3002\u78ba\u4fddDB2\u7684\u5de5\u4f5c\u8a18\u61b6\u9ad4\u548c\u7de9\u885d\u6c60\u5927\u5c0f\u9069\u7576\u914d\u7f6e\uff0c\u4ee5\u907f\u514d\u983b\u7e41\u7684\u78c1\u789fI\/O\u64cd\u4f5c\u3002<\/p>\n

4. \u4e0d\u7576\u7684\u8868\u8a2d\u8a08<\/h2>\n

\u8868\u7684\u8a2d\u8a08\u5c0d\u6027\u80fd\u6709\u76f4\u63a5\u5f71\u97ff\u3002\u904e\u591a\u7684\u5217\u6216\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u985e\u578b\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u5efa\u8b70\u5b9a\u671f\u6aa2\u67e5\u8868\u7d50\u69cb\uff0c\u4e26\u9032\u884c\u5fc5\u8981\u7684\u512a\u5316\u3002<\/p>\n

5. \u4e0d\u5408\u7406\u7684\u67e5\u8a62\u8a9e\u53e5<\/h2>\n

\u67e5\u8a62\u8a9e\u53e5\u7684\u6548\u7387\u76f4\u63a5\u5f71\u97ff\u6027\u80fd\u3002\u4f7f\u7528SET CURRENT QUERY OPTIMIZATION<\/code>\u4f86\u8abf\u6574\u67e5\u8a62\u512a\u5316\u7d1a\u5225\uff0c\u4e26\u907f\u514d\u4f7f\u7528\u4e0d\u5fc5\u8981\u7684\u5b50\u67e5\u8a62\u3002<\/p>\n

6. \u78c1\u789fI\/O\u74f6\u9838<\/h2>\n

\u78c1\u789fI\/O\u662fDB2\u6027\u80fd\u7684\u53e6\u4e00\u500b\u95dc\u9375\u56e0\u7d20\u3002\u4f7f\u7528db2pd<\/code>\u547d\u4ee4\u4f86\u76e3\u63a7I\/O\u6027\u80fd\uff0c\u4e26\u8003\u616e\u4f7f\u7528SSD\u4f86\u63d0\u9ad8\u8b80\u5beb\u901f\u5ea6\u3002<\/p>\n

7. \u9023\u63a5\u6578\u904e\u591a<\/h2>\n

\u904e\u591a\u7684\u9023\u63a5\u6703\u5c0e\u81f4\u8cc7\u6e90\u8017\u76e1\u3002\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e\u9023\u63a5\u6c60\u4f86\u7ba1\u7406\u9023\u63a5\u6578\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n

8. \u4e8b\u52d9\u7ba1\u7406\u4e0d\u7576<\/h2>\n

\u9577\u6642\u9593\u904b\u884c\u7684\u4e8b\u52d9\u6703\u5c0e\u81f4\u9396\u5b9a\u548c\u6027\u80fd\u554f\u984c\u3002\u5efa\u8b70\u5c07\u4e8b\u52d9\u63a7\u5236\u5728\u5408\u7406\u7684\u7bc4\u570d\u5167\uff0c\u4e26\u5b9a\u671f\u6aa2\u67e5\u4e8b\u52d9\u65e5\u8a8c\u3002<\/p>\n

9. \u7f3a\u4e4f\u7d71\u8a08\u4fe1\u606f<\/h2>\n

DB2\u4f9d\u8cf4\u7d71\u8a08\u4fe1\u606f\u4f86\u751f\u6210\u6700\u4f73\u67e5\u8a62\u8a08\u5283\u3002\u5b9a\u671f\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\u53ef\u4ee5\u5e6b\u52a9\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4f7f\u7528RUNSTATS<\/code>\u547d\u4ee4\u4f86\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\u3002<\/p>\n

10. \u4e0d\u7576\u7684\u7de9\u885d\u6c60\u914d\u7f6e<\/h2>\n

\u7de9\u885d\u6c60\u7684\u5927\u5c0f\u548c\u914d\u7f6e\u5c0d\u6027\u80fd\u6709\u76f4\u63a5\u5f71\u97ff\u3002\u6839\u64da\u5be6\u969b\u5de5\u4f5c\u8ca0\u8f09\u8abf\u6574\u7de9\u885d\u6c60\u7684\u5927\u5c0f\uff0c\u4ee5\u63d0\u9ad8\u6578\u64da\u8a2a\u554f\u901f\u5ea6\u3002<\/p>\n

11. \u7248\u672c\u4e0d\u517c\u5bb9<\/h2>\n

\u4f7f\u7528\u4e0d\u517c\u5bb9\u7684DB2\u7248\u672c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\u3002\u5efa\u8b70\u5b9a\u671f\u6aa2\u67e5\u4e26\u66f4\u65b0\u5230\u6700\u65b0\u7248\u672c\uff0c\u4ee5\u7372\u5f97\u6700\u4f73\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/p>\n

12. \u7f3a\u4e4f\u76e3\u63a7\u548c\u8abf\u6574<\/h2>\n

\u6301\u7e8c\u7684\u76e3\u63a7\u548c\u8abf\u6574\u662f\u78ba\u4fddDB2\u6027\u80fd\u7684\u95dc\u9375\u3002\u4f7f\u7528DB2\u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\u4f86\u8ddf\u8e2a\u6027\u80fd\u6307\u6a19\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

DB2\u6027\u80fd\u8abf\u512a\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u591a\u65b9\u9762\u7684\u8003\u91cf\u3002\u901a\u904e\u8b58\u5225\u548c\u89e3\u6c7a\u4e0a\u8ff0\u5e38\u898b\u554f\u984c\uff0c\u60a8\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8DB2\u7684\u6027\u80fd\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u6216\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u78ba\u4fdd\u696d\u52d9\u904b\u884c\u7684\u9ad8\u6548\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u63a2\u7d22DB2\u6027\u80fd\u8abf\u512a\u4e2d\u5e38\u898b\u768412\u500b\u7591\u96e3\u554f\u984c\uff0c\u52a9\u60a8\u63d0\u5347\u6578\u64da\u5eab\u6548\u80fd\uff0c\u512a\u5316\u67e5\u8a62\u548c\u8cc7\u6e90\u4f7f\u7528\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-60935","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60935","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=60935"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60935\/revisions"}],"predecessor-version":[{"id":60936,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60935\/revisions\/60936"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}