{"id":162765,"date":"2024-11-04T17:49:19","date_gmt":"2024-11-04T09:49:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162765\/"},"modified":"2024-11-04T17:49:20","modified_gmt":"2024-11-04T09:49:20","slug":"%e9%99%8d%e4%bd%8edb2%e7%ae%a1%e7%90%86%e8%a1%a8%e7%a9%ba%e9%96%93%e7%9a%84%e9%ab%98%e6%b0%b4%e4%bd%8d%e6%a8%99%e8%a8%98%e5%af%a6%e6%93%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162765\/","title":{"rendered":"\u964d\u4f4eDB2\u7ba1\u7406\u8868\u7a7a\u9593\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\u5be6\u64cd"},"content":{"rendered":"<h1 id=\"%e9%99%8d%e4%bd%8edb2%e7%ae%a1%e7%90%86%e8%a1%a8%e7%a9%ba%e9%96%93%e7%9a%84%e9%ab%98%e6%b0%b4%e4%bd%8d%e6%a8%99%e8%a8%98%e5%af%a6%e6%93%8d-qJnpTemihN\">\u964d\u4f4eDB2\u7ba1\u7406\u8868\u7a7a\u9593\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\u5be6\u64cd<\/h1>\n<p>\u5728DB2\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7ba1\u7406\u8868\u7a7a\u9593\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\u662f\u4e00\u9805\u91cd\u8981\u7684\u4efb\u52d9\u3002\u9ad8\u6c34\u4f4d\u6a19\u8a18\uff08High Water Mark, HWM\uff09\u662f\u6307\u8868\u7a7a\u9593\u4e2d\u5df2\u4f7f\u7528\u7684\u7a7a\u9593\u7684\u6700\u9ad8\u9ede\u3002\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u9019\u4e00\u6a19\u8a18\u53ef\u80fd\u6703\u4e0a\u5347\uff0c\u5c0e\u81f4\u7a7a\u9593\u7684\u6d6a\u8cbb\u548c\u6027\u80fd\u7684\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u964d\u4f4e\u9ad8\u6c34\u4f4d\u6a19\u8a18\u5c0d\u65bc\u7dad\u6301\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e9%ab%98%e6%b0%b4%e4%bd%8d%e6%a8%99%e8%a8%98%e7%9a%84%e6%a6%82%e5%bf%b5-qJnpTemihN\">\u9ad8\u6c34\u4f4d\u6a19\u8a18\u7684\u6982\u5ff5<\/h2>\n<p>\u9ad8\u6c34\u4f4d\u6a19\u8a18\u662fDB2\u8868\u7a7a\u9593\u4e2d\u5df2\u4f7f\u7528\u9801\u9762\u7684\u6307\u6a19\u3002\u7576\u6578\u64da\u88ab\u63d2\u5165\u6216\u66f4\u65b0\u6642\uff0cDB2\u6703\u81ea\u52d5\u8abf\u6574\u9ad8\u6c34\u4f4d\u6a19\u8a18\u3002\u7576\u6578\u64da\u88ab\u522a\u9664\u6642\uff0c\u96d6\u7136\u76f8\u61c9\u7684\u9801\u9762\u6703\u88ab\u6a19\u8a18\u70ba\u53ef\u7528\uff0c\u4f46\u9ad8\u6c34\u4f4d\u6a19\u8a18\u4e0d\u6703\u81ea\u52d5\u4e0b\u964d\u3002\u9019\u610f\u5473\u8457\uff0c\u5373\u4f7f\u6578\u64da\u88ab\u522a\u9664\uff0c\u8868\u7a7a\u9593\u7684\u5927\u5c0f\u4ecd\u7136\u4fdd\u6301\u4e0d\u8b8a\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u8cc7\u6e90\u7684\u6d6a\u8cbb\u3002<\/p>\n<h2 id=\"%e9%99%8d%e4%bd%8e%e9%ab%98%e6%b0%b4%e4%bd%8d%e6%a8%99%e8%a8%98%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-qJnpTemihN\">\u964d\u4f4e\u9ad8\u6c34\u4f4d\u6a19\u8a18\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0cDB2\u6578\u64da\u5eab\u4e2d\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\u53ef\u80fd\u6703\u8b8a\u5f97\u904e\u9ad8\uff0c\u9019\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u904e\u9ad8\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\u6703\u5c0e\u81f4\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n<ul>\n<li>\u8cc7\u6e90\u6d6a\u8cbb\uff1a\u672a\u4f7f\u7528\u7684\u7a7a\u9593\u4ecd\u7136\u4f54\u7528\u5b58\u5132\u8cc7\u6e90\u3002<\/li>\n<li>\u6027\u80fd\u4e0b\u964d\uff1a\u67e5\u8a62\u548c\u6578\u64da\u64cd\u4f5c\u7684\u6548\u7387\u53ef\u80fd\u53d7\u5230\u5f71\u97ff\u3002<\/li>\n<li>\u7ba1\u7406\u56f0\u96e3\uff1a\u9ad8\u6c34\u4f4d\u6a19\u8a18\u904e\u9ad8\u6703\u4f7f\u5f97\u6578\u64da\u5eab\u7684\u7ba1\u7406\u8b8a\u5f97\u66f4\u52a0\u8907\u96dc\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%99%8d%e4%bd%8e%e9%ab%98%e6%b0%b4%e4%bd%8d%e6%a8%99%e8%a8%98%e7%9a%84%e5%af%a6%e6%93%8d%e6%ad%a5%e9%a9%9f-qJnpTemihN\">\u964d\u4f4e\u9ad8\u6c34\u4f4d\u6a19\u8a18\u7684\u5be6\u64cd\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u964d\u4f4eDB2\u7ba1\u7406\u8868\u7a7a\u9593\u9ad8\u6c34\u4f4d\u6a19\u8a18\u7684\u5e7e\u500b\u5be6\u7528\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e9%ab%98%e6%b0%b4%e4%bd%8d%e6%a8%99%e8%a8%98-qJnpTemihN\">1. \u78ba\u8a8d\u9ad8\u6c34\u4f4d\u6a19\u8a18<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u8a8d\u7576\u524d\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u8868\u7a7a\u9593\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\uff1a<\/p>\n<pre><code>SELECT TBSP_NAME, HWM_PAGES, TOTAL_PAGES\nFROM SYSIBM.SYSTABLESPACE\nWHERE TBSP_NAME = 'YOUR_TABLESPACE_NAME';<\/code><\/pre>\n<h3 id=\"2-%e5%88%aa%e9%99%a4%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e6%95%b8%e6%93%9a-qJnpTemihN\">2. \u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da<\/h3>\n<p>\u901a\u904e\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u91cb\u653e\u7a7a\u9593\u3002\u4f7f\u7528DELETE\u8a9e\u53e5\u4f86\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>DELETE FROM YOUR_TABLE\nWHERE CONDITION;<\/code><\/pre>\n<h3 id=\"3-%e6%94%b6%e7%b8%ae%e8%a1%a8%e7%a9%ba%e9%96%93-qJnpTemihN\">3. \u6536\u7e2e\u8868\u7a7a\u9593<\/h3>\n<p>\u5728\u522a\u9664\u6578\u64da\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528REORG\u547d\u4ee4\u4f86\u6536\u7e2e\u8868\u7a7a\u9593\uff0c\u9019\u5c07\u964d\u4f4e\u9ad8\u6c34\u4f4d\u6a19\u8a18\uff1a<\/p>\n<pre><code>REORG TABLE YOUR_TABLE;<\/code><\/pre>\n<h3 id=\"4-%e9%87%8d%e6%96%b0%e7%b5%84%e7%b9%94%e8%a1%a8%e7%a9%ba%e9%96%93-qJnpTemihN\">4. \u91cd\u65b0\u7d44\u7e54\u8868\u7a7a\u9593<\/h3>\n<p>\u5982\u679c\u9700\u8981\uff0c\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u91cd\u65b0\u7d44\u7e54\u6574\u500b\u8868\u7a7a\u9593\uff1a<\/p>\n<pre><code>REORG TABLESPACE YOUR_TABLESPACE_NAME;<\/code><\/pre>\n<h3 id=\"5-%e5%ae%9a%e6%9c%9f%e7%9b%a3%e6%8e%a7-qJnpTemihN\">5. \u5b9a\u671f\u76e3\u63a7<\/h3>\n<p>\u6700\u5f8c\uff0c\u5b9a\u671f\u76e3\u63a7\u9ad8\u6c34\u4f4d\u6a19\u8a18\u7684\u8b8a\u5316\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u8a2d\u7f6e\u5b9a\u671f\u7684\u5831\u544a\u4f86\u8ddf\u8e2a\u9ad8\u6c34\u4f4d\u6a19\u8a18\u7684\u8b8a\u5316\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-qJnpTemihN\">\u7d50\u8ad6<\/h2>\n<p>\u964d\u4f4eDB2\u7ba1\u7406\u8868\u7a7a\u9593\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\u662f\u4e00\u9805\u91cd\u8981\u7684\u7dad\u8b77\u4efb\u52d9\uff0c\u80fd\u5920\u6709\u6548\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\u7387\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u3001\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3001\u6536\u7e2e\u548c\u91cd\u65b0\u7d44\u7e54\u8868\u7a7a\u9593\uff0c\u60a8\u53ef\u4ee5\u4fdd\u6301\u6578\u64da\u5eab\u7684\u5065\u5eb7\u904b\u884c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u670d\u52d9\u63d0\u4f9b\u5546\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u5c07\u6709\u52a9\u65bc\u60a8\u5728\u6578\u64da\u7ba1\u7406\u4e0a\u505a\u51fa\u66f4\u660e\u667a\u7684\u9078\u64c7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5be6\u64cd\u6307\u5357\uff1a\u5b78\u7fd2\u5982\u4f55\u964d\u4f4eDB2\u7ba1\u7406\u8868\u7a7a\u9593\u7684\u9ad8\u6c34\u4f4d\u6a19\u8a18\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u7a7a\u9593\u5229\u7528\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-162765","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162765","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=162765"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162765\/revisions"}],"predecessor-version":[{"id":162766,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162765\/revisions\/162766"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}