{"id":60587,"date":"2024-10-13T04:06:17","date_gmt":"2024-10-12T20:06:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60587\/"},"modified":"2024-10-13T04:06:17","modified_gmt":"2024-10-12T20:06:17","slug":"db2%e6%b1%82%e5%89%a9%e9%a4%98%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93%e5%a4%a7%e5%b0%8f%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60587\/","title":{"rendered":"DB2\u6c42\u5269\u9918\u6578\u64da\u5eab\u7a7a\u9593\u5927\u5c0f\u7684\u5be6\u969b\u64cd\u4f5c\u6280\u5de7"},"content":{"rendered":"<h1 id=\"db2%e6%b1%82%e5%89%a9%e9%a4%98%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93%e5%a4%a7%e5%b0%8f%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%8a%80%e5%b7%a7-lgrULiwlZv\">DB2\u6c42\u5269\u9918\u6578\u64da\u5eab\u7a7a\u9593\u5927\u5c0f\u7684\u5be6\u969b\u64cd\u4f5c\u6280\u5de7<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u4e86\u89e3\u6578\u64da\u5eab\u7684\u5269\u9918\u7a7a\u9593\u5927\u5c0f\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528IBM DB2\u6578\u64da\u5eab\u6642\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6b63\u5e38\u904b\u884c\uff0c\u9084\u80fd\u907f\u514d\u56e0\u7a7a\u9593\u4e0d\u8db3\u800c\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b\u5be6\u969b\u64cd\u4f5c\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u67e5\u8a62DB2\u6578\u64da\u5eab\u7684\u5269\u9918\u7a7a\u9593\u5927\u5c0f\u3002<\/p>\n<h2 id=\"1-%e4%bd%bf%e7%94%a8db2%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%b7%a5%e5%85%b7-lgrULiwlZv\">1. \u4f7f\u7528DB2\u547d\u4ee4\u884c\u5de5\u5177<\/h2>\n<p>DB2\u63d0\u4f9b\u4e86\u591a\u7a2e\u547d\u4ee4\u884c\u5de5\u5177\u4f86\u67e5\u8a62\u6578\u64da\u5eab\u7684\u72c0\u614b\u548c\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u3002\u6700\u5e38\u7528\u7684\u547d\u4ee4\u662f\uff1a<\/p>\n<pre><code>db2 LIST TABLESPACES SHOW DETAIL<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u986f\u793a\u6240\u6709\u8868\u7a7a\u9593\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u5305\u62ec\u5df2\u7528\u7a7a\u9593\u548c\u7e3d\u7a7a\u9593\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9019\u4e9b\u4fe1\u606f\u4f86\u5224\u65b7\u5269\u9918\u7a7a\u9593\u7684\u5927\u5c0f\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-lgrULiwlZv\">\u793a\u4f8b<\/h3>\n<p>\u57f7\u884c\u4e0a\u8ff0\u547d\u4ee4\u5f8c\uff0c\u60a8\u53ef\u80fd\u6703\u770b\u5230\u985e\u4f3c\u4ee5\u4e0b\u7684\u8f38\u51fa\uff1a<\/p>\n<pre><code>Tablespace Name            = USERSPACE1\nTotal Pages                = 10000\nUsed Pages                 = 8000\nFree Pages                 = 2000\nPage Size                  = 4096\n<\/code><\/pre>\n<p>\u5f9e\u4e2d\u53ef\u4ee5\u8a08\u7b97\u51fa\u5269\u9918\u7a7a\u9593\uff1aFree Pages * Page Size = 2000 * 4096 = 8,192,000 bytes\u3002<\/p>\n<h2 id=\"2-%e6%9f%a5%e8%a9%a2%e7%b3%bb%e7%b5%b1%e7%9b%ae%e9%8c%84-lgrULiwlZv\">2. \u67e5\u8a62\u7cfb\u7d71\u76ee\u9304<\/h2>\n<p>DB2\u7684\u7cfb\u7d71\u76ee\u9304\u4e2d\u5b58\u5132\u4e86\u6709\u95dc\u6578\u64da\u5eab\u7684\u5404\u7a2e\u4fe1\u606f\uff0c\u5305\u62ec\u8868\u7a7a\u9593\u7684\u4f7f\u7528\u60c5\u6cc1\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u7cfb\u7d71\u76ee\u9304\u4f86\u7372\u53d6\u9019\u4e9b\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u8868\u7a7a\u9593\u7684SQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT TBSP_NAME, \n       (TBSP_TOTAL_PAGES * TBSP_PAGE_SIZE) AS TOTAL_SPACE,\n       (TBSP_USED_PAGES * TBSP_PAGE_SIZE) AS USED_SPACE,\n       ((TBSP_TOTAL_PAGES - TBSP_USED_PAGES) * TBSP_PAGE_SIZE) AS FREE_SPACE\nFROM SYSIBM.SYSTABLESPACE;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6bcf\u500b\u8868\u7a7a\u9593\u7684\u7e3d\u7a7a\u9593\u3001\u5df2\u7528\u7a7a\u9593\u548c\u5269\u9918\u7a7a\u9593\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-lgrULiwlZv\">\u793a\u4f8b<\/h3>\n<p>\u57f7\u884c\u4e0a\u8ff0\u67e5\u8a62\u5f8c\uff0c\u60a8\u53ef\u80fd\u6703\u5f97\u5230\u5982\u4e0b\u7d50\u679c\uff1a<\/p>\n<pre><code>TBSP_NAME    | TOTAL_SPACE | USED_SPACE | FREE_SPACE\n-------------------------------------------------------\nUSERSPACE1   | 40960000    | 32768000   | 8192000\n<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u60a8\u53ef\u4ee5\u6e05\u695a\u5730\u770b\u5230\u6bcf\u500b\u8868\u7a7a\u9593\u7684\u5269\u9918\u7a7a\u9593\u5927\u5c0f\u3002<\/p>\n<h2 id=\"3-%e7%9b%a3%e6%8e%a7%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a9%ba%e9%96%93%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-lgrULiwlZv\">3. \u76e3\u63a7\u6578\u64da\u5eab\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1<\/h2>\n<p>\u9664\u4e86\u624b\u52d5\u67e5\u8a62\u5916\uff0c\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u7684\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u4e5f\u662f\u4e00\u500b\u597d\u7fd2\u6163\u3002DB2\u63d0\u4f9b\u4e86\u591a\u7a2e\u76e3\u63a7\u5de5\u5177\u548c\u8996\u89ba\u5316\u754c\u9762\uff0c\u5e6b\u52a9\u7528\u6236\u5be6\u6642\u8ddf\u8e64\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u3002\u7528\u6236\u53ef\u4ee5\u8a2d\u7f6e\u8b66\u5831\uff0c\u4ee5\u4fbf\u5728\u5269\u9918\u7a7a\u9593\u4f4e\u65bc\u67d0\u500b\u95be\u503c\u6642\u53ca\u6642\u7372\u5f97\u901a\u77e5\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8db2%e7%9b%a3%e6%8e%a7%e5%b7%a5%e5%85%b7-lgrULiwlZv\">\u4f7f\u7528DB2\u76e3\u63a7\u5de5\u5177<\/h3>\n<p>DB2\u7684\u76e3\u63a7\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u751f\u6210\u5831\u544a\uff0c\u986f\u793a\u6578\u64da\u5eab\u7684\u7a7a\u9593\u4f7f\u7528\u8da8\u52e2\u3002\u9019\u4e9b\u5831\u544a\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u9810\u6e2c\u672a\u4f86\u7684\u7a7a\u9593\u9700\u6c42\uff0c\u5f9e\u800c\u63d0\u524d\u9032\u884c\u64f4\u5c55\u6216\u6e05\u7406\u3002<\/p>\n<h2 id=\"4-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e6%95%b8%e6%93%9a%e5%ba%ab-lgrULiwlZv\">4. \u5b9a\u671f\u6e05\u7406\u6578\u64da\u5eab<\/h2>\n<p>\u70ba\u4e86\u4fdd\u6301\u6578\u64da\u5eab\u7684\u5065\u5eb7\u72c0\u614b\uff0c\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u4f7f\u7528\u7684\u6578\u64da\u662f\u5fc5\u8981\u7684\u3002\u7528\u6236\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>DELETE FROM your_table WHERE condition;<\/code><\/pre>\n<p>\u5728\u522a\u9664\u6578\u64da\u5f8c\uff0c\u5efa\u8b70\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f86\u56de\u6536\u7a7a\u9593\uff1a<\/p>\n<pre><code>db2 REORG TABLE your_table;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-lgrULiwlZv\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3DB2\u6578\u64da\u5eab\u7684\u5269\u9918\u7a7a\u9593\u5927\u5c0f\u5c0d\u65bc\u7dad\u8b77\u6578\u64da\u5eab\u7684\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528DB2\u547d\u4ee4\u884c\u5de5\u5177\u3001\u67e5\u8a62\u7cfb\u7d71\u76ee\u9304\u3001\u76e3\u63a7\u6578\u64da\u5eab\u7a7a\u9593\u4f7f\u7528\u60c5\u6cc1\u4ee5\u53ca\u5b9a\u671f\u6e05\u7406\u6578\u64da\u5eab\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u7684\u7a7a\u9593\u3002\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u5e6b\u52a9\u60a8\u907f\u514d\u7a7a\u9593\u4e0d\u8db3\u7684\u554f\u984c\uff0c\u9084\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u9999\u6e2f\u4f7f\u7528 <a href=\"https:\/\/server.hk\">VPS<\/a> \u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1DB2\u6c42\u5269\u9918\u6578\u64da\u5eab\u7a7a\u9593\u5927\u5c0f\u7684\u5be6\u969b\u64cd\u4f5c\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\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-60587","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60587","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=60587"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60587\/revisions"}],"predecessor-version":[{"id":60588,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60587\/revisions\/60588"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60587"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60587"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}