{"id":13897,"date":"2024-03-15T08:06:40","date_gmt":"2024-03-15T08:06:40","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-check-the-tablespace-usage-rate-in-pl-sql\/"},"modified":"2025-08-06T00:53:32","modified_gmt":"2025-08-06T00:53:32","slug":"how-to-check-the-tablespace-usage-rate-in-pl-sql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-check-the-tablespace-usage-rate-in-pl-sql\/","title":{"rendered":"PL\/SQL: Check Tablespace Usage Rate (With Examples)"},"content":{"rendered":"<p>To check the usage rate of table space, you can use one of the following methods:<\/p>\n<ol>\n<li>Database tables.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> tablespace_name, round((<span class=\"hljs-number\">1<\/span> <span class=\"hljs-operator\">-<\/span> (free_space <span class=\"hljs-operator\">\/<\/span> total_space)) <span class=\"hljs-operator\">*<\/span> <span class=\"hljs-number\">100<\/span>, <span class=\"hljs-number\">2<\/span>) <span class=\"hljs-keyword\">as<\/span> usage_rate\r\n<span class=\"hljs-keyword\">FROM<\/span> dba_tablespaces;\r\n<\/code><\/pre>\n<p>This will return the names and usage rates (in percentage) of all tablespaces.<\/p>\n<ol>\n<li>Available space in the database<\/li>\n<li>Data files maintained by the database administrator<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> f.tablespace_name, round((<span class=\"hljs-number\">1<\/span> <span class=\"hljs-operator\">-<\/span> (<span class=\"hljs-built_in\">sum<\/span>(f.bytes) <span class=\"hljs-operator\">\/<\/span> d.bytes)) <span class=\"hljs-operator\">*<\/span> <span class=\"hljs-number\">100<\/span>, <span class=\"hljs-number\">2<\/span>) <span class=\"hljs-keyword\">as<\/span> usage_rate\r\n<span class=\"hljs-keyword\">FROM<\/span> dba_free_space f\r\n<span class=\"hljs-keyword\">JOIN<\/span> dba_data_files d <span class=\"hljs-keyword\">ON<\/span> f.tablespace_name <span class=\"hljs-operator\">=<\/span> d.tablespace_name\r\n<span class=\"hljs-keyword\">GROUP<\/span> <span class=\"hljs-keyword\">BY<\/span> f.tablespace_name, d.bytes;\r\n<\/code><\/pre>\n<p>This will provide the name and usage rate (in percentage) of each tablespace.<\/p>\n<ol>\n<li>View TABLESPACE<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> name, round((<span class=\"hljs-number\">1<\/span> <span class=\"hljs-operator\">-<\/span> (free_blocks <span class=\"hljs-operator\">\/<\/span> total_blocks)) <span class=\"hljs-operator\">*<\/span> <span class=\"hljs-number\">100<\/span>, <span class=\"hljs-number\">2<\/span>) <span class=\"hljs-keyword\">as<\/span> usage_rate\r\n<span class=\"hljs-keyword\">FROM<\/span> v$tablespace;\r\n<\/code><\/pre>\n<p>This will return the names of all tablespaces and their usage rate as a percentage.<\/p>\n<p>Please note that these queries will return the overall usage of the tablespace. If you want to view the usage of specific tables or indexes, you can query the DBA_SEGMENTS view.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To check the usage rate of table space, you can use one of the following methods: Database tables. SELECT tablespace_name, round((1 &#8211; (free_space \/ total_space)) * 100, 2) as usage_rate FROM dba_tablespaces; This will return the names and usage rates (in percentage) of all tablespaces. Available space in the database Data files maintained by the [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[390,282,1079,321,3165],"class_list":["post-13897","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-database-administration","tag-oracle","tag-oracle-dba","tag-pl-sql","tag-tablespace"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PL\/SQL: Check Tablespace Usage Rate (With Examples) - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to check Oracle tablespace usage rate with PL\/SQL. 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