{"id":60945,"date":"2024-10-13T07:08:14","date_gmt":"2024-10-12T23:08:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60945\/"},"modified":"2024-10-13T07:08:14","modified_gmt":"2024-10-12T23:08:14","slug":"db2%e6%80%a7%e8%83%bd%e8%aa%bf%e5%84%aa%e4%b8%ad%e7%9a%8412%e5%80%8b%e7%96%91%e9%9b%a3%e5%95%8f%e9%a1%8c%e7%9a%84%e6%ad%a3%e7%a2%ba%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60945\/","title":{"rendered":"DB2\u6027\u80fd\u8abf\u512a\u4e2d\u768412\u500b\u7591\u96e3\u554f\u984c\u7684\u6b63\u78ba\u89e3\u6790"},"content":{"rendered":"<h1 id=\"db2%e6%80%a7%e8%83%bd%e8%aa%bf%e5%84%aa%e4%b8%ad%e7%9a%8412%e5%80%8b%e7%96%91%e9%9b%a3%e5%95%8f%e9%a1%8c%e7%9a%84%e6%ad%a3%e7%a2%ba%e8%a7%a3%e6%9e%90-cMtuisHTwn\">DB2\u6027\u80fd\u8abf\u512a\u4e2d\u768412\u500b\u7591\u96e3\u554f\u984c\u7684\u6b63\u78ba\u89e3\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u6210\u529f\u81f3\u95dc\u91cd\u8981\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u56e0\u5176\u9ad8\u6548\u80fd\u548c\u53ef\u9760\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\u548c\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0cDB2\u7684\u6027\u80fd\u8abf\u512a\u6210\u70ba\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2\u6027\u80fd\u8abf\u512a\u4e2d\u768412\u500b\u5e38\u898b\u7591\u96e3\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u6b63\u78ba\u7684\u89e3\u6790\u548c\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"1-%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd%e4%b8%8d%e4%bd%b3-cMtuisHTwn\">1. \u67e5\u8a62\u6027\u80fd\u4e0d\u4f73<\/h2>\n<p>\u67e5\u8a62\u6027\u80fd\u4e0d\u4f73\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u7576\u7684\u7d22\u5f15\u8a2d\u7f6e\u6216\u67e5\u8a62\u8a08\u5283\u4e0d\u4f73\u9020\u6210\u7684\u3002\u4f7f\u7528 <code>EXPLAIN<\/code> \u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u4e26\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002\u78ba\u4fdd\u70ba\u5e38\u7528\u67e5\u8a62\u5275\u5efa\u5408\u9069\u7684\u7d22\u5f15\uff0c\u4e26\u5b9a\u671f\u91cd\u5efa\u7d22\u5f15\u4ee5\u4fdd\u6301\u5176\u6548\u7387\u3002<\/p>\n<h2 id=\"2-%e9%8e%96%e5%ae%9a%e5%95%8f%e9%a1%8c-cMtuisHTwn\">2. \u9396\u5b9a\u554f\u984c<\/h2>\n<p>\u9396\u5b9a\u554f\u984c\u6703\u5c0e\u81f4\u6578\u64da\u5eab\u6027\u80fd\u4e0b\u964d\u3002\u4f7f\u7528 <code>GET SNAPSHOT FOR LOCKS<\/code> \u547d\u4ee4\u53ef\u4ee5\u6aa2\u67e5\u7576\u524d\u7684\u9396\u5b9a\u72c0\u614b\u3002\u8003\u616e\u4f7f\u7528\u884c\u7d1a\u9396\u5b9a\u800c\u975e\u8868\u7d1a\u9396\u5b9a\uff0c\u4ee5\u6e1b\u5c11\u9396\u5b9a\u7af6\u722d\u3002<\/p>\n<h2 id=\"3-%e8%a8%98%e6%86%b6%e9%ab%94%e9%85%8d%e7%bd%ae%e4%b8%8d%e7%95%b6-cMtuisHTwn\">3. \u8a18\u61b6\u9ad4\u914d\u7f6e\u4e0d\u7576<\/h2>\n<p>DB2\u7684\u6027\u80fd\u8207\u8a18\u61b6\u9ad4\u914d\u7f6e\u5bc6\u5207\u76f8\u95dc\u3002\u78ba\u4fdd <code>DBHEAP<\/code>\u3001<code>SORTHEAP<\/code> \u548c <code>LOGPRIMARY<\/code> \u7b49\u53c3\u6578\u7684\u8a2d\u7f6e\u7b26\u5408\u5be6\u969b\u9700\u6c42\u3002\u904e\u5c0f\u7684\u8a18\u61b6\u9ad4\u914d\u7f6e\u6703\u5c0e\u81f4\u983b\u7e41\u7684\u78c1\u789fI\/O\uff0c\u5f71\u97ff\u6027\u80fd\u3002<\/p>\n<h2 id=\"4-%e7%a3%81%e7%a2%9fi-o%e7%93%b6%e9%a0%b8-cMtuisHTwn\">4. \u78c1\u789fI\/O\u74f6\u9838<\/h2>\n<p>\u78c1\u789fI\/O\u662f\u5f71\u97ffDB2\u6027\u80fd\u7684\u4e3b\u8981\u56e0\u7d20\u4e4b\u4e00\u3002\u4f7f\u7528 <code>GET SNAPSHOT FOR DATABASE<\/code> \u547d\u4ee4\u53ef\u4ee5\u6aa2\u67e5I\/O\u6027\u80fd\u3002\u8003\u616e\u4f7f\u7528SSD\u4f86\u63d0\u9ad8I\/O\u6027\u80fd\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u5eab\u6587\u4ef6\u5206\u4f48\u5728\u4e0d\u540c\u7684\u78c1\u789f\u4e0a\u4ee5\u6e1b\u5c11\u7af6\u722d\u3002<\/p>\n<h2 id=\"5-%e4%b8%8d%e7%95%b6%e7%9a%84sql%e8%aa%9e%e5%8f%a5-cMtuisHTwn\">5. \u4e0d\u7576\u7684SQL\u8a9e\u53e5<\/h2>\n<p>\u4e0d\u7576\u7684SQL\u8a9e\u53e5\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u4f7f\u7528 <code>RUNSTATS<\/code> \u547d\u4ee4\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff0c\u4ee5\u5e6b\u52a9DB2\u751f\u6210\u66f4\u512a\u7684\u67e5\u8a62\u8a08\u5283\u3002\u907f\u514d\u4f7f\u7528SELECT *\uff0c\u800c\u662f\u660e\u78ba\u6307\u5b9a\u6240\u9700\u7684\u5217\u3002<\/p>\n<h2 id=\"6-%e9%80%a3%e6%8e%a5%e6%95%b8%e9%81%8e%e5%a4%9a-cMtuisHTwn\">6. \u9023\u63a5\u6578\u904e\u591a<\/h2>\n<p>\u904e\u591a\u7684\u9023\u63a5\u6703\u5c0e\u81f4\u8cc7\u6e90\u8017\u76e1\u3002\u4f7f\u7528 <code>GET SNAPSHOT FOR DATABASE<\/code> \u6aa2\u67e5\u7576\u524d\u9023\u63a5\u6578\u3002\u8003\u616e\u4f7f\u7528\u9023\u63a5\u6c60\u6280\u8853\u4f86\u7ba1\u7406\u9023\u63a5\uff0c\u6e1b\u5c11\u9023\u63a5\u7684\u958b\u92b7\u3002<\/p>\n<h2 id=\"7-%e4%ba%8b%e5%8b%99%e7%ae%a1%e7%90%86%e4%b8%8d%e7%95%b6-cMtuisHTwn\">7. \u4e8b\u52d9\u7ba1\u7406\u4e0d\u7576<\/h2>\n<p>\u4e8b\u52d9\u7ba1\u7406\u4e0d\u7576\u6703\u5c0e\u81f4\u9396\u5b9a\u548c\u6027\u80fd\u554f\u984c\u3002\u78ba\u4fdd\u4e8b\u52d9\u7684\u7bc4\u570d\u76e1\u53ef\u80fd\u5c0f\uff0c\u4e26\u53ca\u6642\u63d0\u4ea4\u6216\u56de\u6efe\u4e8b\u52d9\uff0c\u4ee5\u6e1b\u5c11\u9396\u5b9a\u6642\u9593\u3002<\/p>\n<h2 id=\"8-%e4%b8%8d%e7%95%b6%e7%9a%84%e6%95%b8%e6%93%9a%e5%88%86%e5%8d%80-cMtuisHTwn\">8. \u4e0d\u7576\u7684\u6578\u64da\u5206\u5340<\/h2>\n<p>\u6578\u64da\u5206\u5340\u4e0d\u7576\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002\u6839\u64da\u67e5\u8a62\u6a21\u5f0f\u548c\u6578\u64da\u7279\u6027\u8a2d\u8a08\u5408\u7406\u7684\u5206\u5340\u7b56\u7565\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h2 id=\"9-%e7%bc%ba%e4%b9%8f%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4-cMtuisHTwn\">9. \u7f3a\u4e4f\u76e3\u63a7\u548c\u8abf\u6574<\/h2>\n<p>\u7f3a\u4e4f\u76e3\u63a7\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\u7121\u6cd5\u53ca\u6642\u767c\u73fe\u3002\u4f7f\u7528DB2\u7684\u76e3\u63a7\u5de5\u5177\u5b9a\u671f\u6aa2\u67e5\u6027\u80fd\u6307\u6a19\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"10-%e4%b8%8d%e7%95%b6%e7%9a%84%e5%82%99%e4%bb%bd%e7%ad%96%e7%95%a5-cMtuisHTwn\">10. \u4e0d\u7576\u7684\u5099\u4efd\u7b56\u7565<\/h2>\n<p>\u4e0d\u7576\u7684\u5099\u4efd\u7b56\u7565\u6703\u5f71\u97ff\u6027\u80fd\u3002\u78ba\u4fdd\u5099\u4efd\u64cd\u4f5c\u5728\u4f4e\u5cf0\u6642\u6bb5\u9032\u884c\uff0c\u4e26\u8003\u616e\u4f7f\u7528\u589e\u91cf\u5099\u4efd\u4ee5\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"11-%e7%92%b0%e5%a2%83%e9%85%8d%e7%bd%ae%e4%b8%8d%e7%95%b6-cMtuisHTwn\">11. \u74b0\u5883\u914d\u7f6e\u4e0d\u7576<\/h2>\n<p>\u74b0\u5883\u914d\u7f6e\u4e0d\u7576\u6703\u5f71\u97ffDB2\u7684\u6027\u80fd\u3002\u78ba\u4fdd\u64cd\u4f5c\u7cfb\u7d71\u548c\u786c\u9ad4\u914d\u7f6e\u7b26\u5408DB2\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u4e26\u5b9a\u671f\u66f4\u65b0\u7cfb\u7d71\u4ee5\u7372\u53d6\u6700\u65b0\u7684\u6027\u80fd\u6539\u9032\u3002<\/p>\n<h2 id=\"12-%e7%bc%ba%e4%b9%8f%e6%96%87%e6%aa%94%e5%92%8c%e7%9f%a5%e8%ad%98%e5%88%86%e4%ba%ab-cMtuisHTwn\">12. \u7f3a\u4e4f\u6587\u6a94\u548c\u77e5\u8b58\u5206\u4eab<\/h2>\n<p>\u7f3a\u4e4f\u6587\u6a94\u548c\u77e5\u8b58\u5206\u4eab\u6703\u5c0e\u81f4\u5718\u968a\u5728\u6027\u80fd\u8abf\u512a\u4e0a\u9047\u5230\u56f0\u96e3\u3002\u5efa\u7acb\u826f\u597d\u7684\u6587\u6a94\u548c\u77e5\u8b58\u5206\u4eab\u6a5f\u5236\uff0c\u4ee5\u4fbf\u5718\u968a\u6210\u54e1\u80fd\u5920\u5feb\u901f\u89e3\u6c7a\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cMtuisHTwn\">\u7e3d\u7d50<\/h2>\n<p>DB2\u6027\u80fd\u8abf\u512a\u662f\u4e00\u500b\u8907\u96dc\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u591a\u500b\u65b9\u9762\u7684\u8003\u91cf\u3002\u901a\u904e\u6b63\u78ba\u89e3\u6790\u4e0a\u8ff012\u500b\u7591\u96e3\u554f\u984c\uff0c\u4e26\u63a1\u53d6\u76f8\u61c9\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8DB2\u7684\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u6027\u80fd\u8abf\u512a\u4e2d\u768412\u500b\u5e38\u898b\u7591\u96e3\u554f\u984c\uff0c\u63d0\u4f9b\u6b63\u78ba\u89e3\u6790\u8207\u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u60a8\u63d0\u5347\u6578\u64da\u5eab\u6548\u80fd\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-60945","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60945","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=60945"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60945\/revisions"}],"predecessor-version":[{"id":60946,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60945\/revisions\/60946"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}