{"id":196289,"date":"2024-11-13T22:01:19","date_gmt":"2024-11-13T14:01:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196289\/"},"modified":"2024-11-13T22:01:20","modified_gmt":"2024-11-13T14:01:20","slug":"%e6%95%b4%e7%90%86db2%e6%95%b8%e6%93%9a%e9%9b%86%e7%9a%84%e7%af%84%e5%9c%8d%e7%b0%a1%e5%96%ae%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88%e6%8f%8f%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196289\/","title":{"rendered":"\u6574\u7406DB2\u6578\u64da\u96c6\u7684\u7bc4\u570d\u7c21\u55ae\u64cd\u4f5c\u65b9\u6848\u63cf\u8ff0"},"content":{"rendered":"<h1 id=\"%e6%95%b4%e7%90%86db2%e6%95%b8%e6%93%9a%e9%9b%86%e7%9a%84%e7%af%84%e5%9c%8d%e7%b0%a1%e5%96%ae%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88%e6%8f%8f%e8%bf%b0-wEeOGNBqjv\">\u6574\u7406DB2\u6578\u64da\u96c6\u7684\u7bc4\u570d\u7c21\u55ae\u64cd\u4f5c\u65b9\u6848\u63cf\u8ff0<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002IBM\u7684DB2\u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u4f01\u696d\u74b0\u5883\u4e2d\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5982\u4f55\u6709\u6548\u5730\u6574\u7406\u548c\u7ba1\u7406DB2\u6578\u64da\u96c6\u6210\u70ba\u4e86\u8a31\u591a\u4f01\u696d\u9762\u81e8\u7684\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6574\u7406DB2\u6578\u64da\u96c6\u7684\u7bc4\u570d\u53ca\u5176\u7c21\u55ae\u64cd\u4f5c\u65b9\u6848\u3002<\/p>\n<h2 id=\"db2%e6%95%b8%e6%93%9a%e9%9b%86%e7%9a%84%e7%af%84%e5%9c%8d%e6%a6%82%e8%bf%b0-wEeOGNBqjv\">DB2\u6578\u64da\u96c6\u7684\u7bc4\u570d\u6982\u8ff0<\/h2>\n<p>DB2\u6578\u64da\u96c6\u662f\u6307\u5728DB2\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u7684\u6578\u64da\u7684\u96c6\u5408\u3002\u9019\u4e9b\u6578\u64da\u96c6\u53ef\u4ee5\u662f\u8868\u3001\u7d22\u5f15\u3001\u8996\u5716\u7b49\u3002\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u6578\u64da\u96c6\u53ef\u80fd\u6703\u8b8a\u5f97\u5197\u9918\u6216\u4e0d\u4e00\u81f4\uff0c\u9019\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u67e5\u8a62\u6548\u7387\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6574\u7406\u6578\u64da\u96c6\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%95%b4%e7%90%86db2%e6%95%b8%e6%93%9a%e9%9b%86%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-wEeOGNBqjv\">\u6574\u7406DB2\u6578\u64da\u96c6\u7684\u5fc5\u8981\u6027<\/h2>\n<ul>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u6574\u7406\u6578\u64da\u96c6\u53ef\u4ee5\u6e1b\u5c11\u67e5\u8a62\u6642\u9593\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u5197\u9918\uff1a<\/strong>\u901a\u904e\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u5927\u5c0f\u3002<\/li>\n<li><strong>\u4fdd\u6301\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5b9a\u671f\u6574\u7406\u6709\u52a9\u65bc\u4fdd\u6301\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b0%a1%e5%96%ae%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88-wEeOGNBqjv\">\u7c21\u55ae\u64cd\u4f5c\u65b9\u6848<\/h2>\n<p>\u4ee5\u4e0b\u662f\u6574\u7406DB2\u6578\u64da\u96c6\u7684\u5e7e\u500b\u7c21\u55ae\u64cd\u4f5c\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8reorg%e5%91%bd%e4%bb%a4-wEeOGNBqjv\">1. \u4f7f\u7528REORG\u547d\u4ee4<\/h3>\n<p>REORG\u547d\u4ee4\u662fDB2\u4e2d\u7528\u65bc\u91cd\u7d44\u6578\u64da\u7684\u4e3b\u8981\u5de5\u5177\u3002\u5b83\u53ef\u4ee5\u91cd\u7d44\u8868\u548c\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528REORG\u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>REORG TABLE \u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cCUSTOMERS\u201d\u7684\u8868\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u91cd\u7d44\uff1a<\/p>\n<pre><code>REORG TABLE CUSTOMERS;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8runstats%e5%91%bd%e4%bb%a4-wEeOGNBqjv\">2. \u4f7f\u7528RUNSTATS\u547d\u4ee4<\/h3>\n<p>\u5728\u91cd\u7d44\u6578\u64da\u5f8c\uff0c\u5efa\u8b70\u4f7f\u7528RUNSTATS\u547d\u4ee4\u4f86\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\u3002\u9019\u6709\u52a9\u65bc\u67e5\u8a62\u512a\u5316\u5668\u9078\u64c7\u6700\u4f73\u7684\u57f7\u884c\u8a08\u5283\u3002\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>RUNSTATS ON TABLE \u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>RUNSTATS ON TABLE CUSTOMERS;<\/code><\/pre>\n<h3 id=\"3-%e5%88%aa%e9%99%a4%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e6%95%b8%e6%93%9a-wEeOGNBqjv\">3. \u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da<\/h3>\n<p>\u5b9a\u671f\u6aa2\u67e5\u4e26\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u4e5f\u662f\u6574\u7406\u6578\u64da\u96c6\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u53ef\u4ee5\u4f7f\u7528DELETE\u547d\u4ee4\u4f86\u522a\u9664\u7279\u5b9a\u689d\u4ef6\u4e0b\u7684\u6578\u64da\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>DELETE FROM CUSTOMERS WHERE LAST_PURCHASE &lt; '2020-01-01';<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-wEeOGNBqjv\">\u7d50\u8ad6<\/h2>\n<p>\u6574\u7406DB2\u6578\u64da\u96c6\u662f\u4e00\u9805\u91cd\u8981\u7684\u7dad\u8b77\u4efb\u52d9\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u901a\u904e\u4f7f\u7528REORG\u548cRUNSTATS\u547d\u4ee4\uff0c\u4ee5\u53ca\u5b9a\u671f\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff0c\u4f01\u696d\u53ef\u4ee5\u78ba\u4fdd\u5176\u6578\u64da\u5eab\u59cb\u7d42\u4fdd\u6301\u6700\u4f73\u72c0\u614b\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u652f\u6301\u60a8\u7684DB2\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u512a\u5316\u60a8\u7684\u6578\u64da\u96c6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7c21\u55ae\u64cd\u4f5c\u65b9\u6848\u63cf\u8ff0\uff0c\u5e6b\u52a9\u7528\u6236\u6709\u6548\u6574\u7406DB2\u6578\u64da\u96c6\u7684\u7bc4\u570d\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u8207\u6e96\u78ba\u6027\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-196289","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196289","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=196289"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196289\/revisions"}],"predecessor-version":[{"id":196290,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196289\/revisions\/196290"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}