{"id":364,"date":"2024-12-18T09:37:34","date_gmt":"2024-12-18T09:37:34","guid":{"rendered":"https:\/\/w3buddy.com\/?p=364"},"modified":"2026-01-15T13:12:12","modified_gmt":"2026-01-15T07:42:12","slug":"how-to-resolve-ora-01653-unable-to-extend-table-in-tablespace","status":"publish","type":"post","link":"https:\/\/w3buddy.com\/blog\/how-to-resolve-ora-01653-unable-to-extend-table-in-tablespace\/","title":{"rendered":"How to Resolve ORA-01653: Unable to Extend Table in Tablespace"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">If you\u2019ve worked with Oracle databases, you might have encountered the error:<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">ORA-01653: unable to extend table &lt;TABLE_NAME> by &lt;NUMBER> in tablespace &lt;TABLESPACE_NAME>.<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This error indicates that Oracle couldn\u2019t allocate enough space in the tablespace to extend the specified table. In this blog post, we\u2019ll cover practical steps to diagnose and resolve this issue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Causes ORA-01653?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Oracle tables grow as data is inserted. When the tablespace containing the table runs out of space, the database throws ORA-01653. Common causes include:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li> Tablespace reaching its maximum size limit.<\/li>\n\n\n\n<li>Datafiles associated with the tablespace being too small or fixed in size.<\/li>\n\n\n\n<li>Lack of autoextend settings on the tablespace datafiles.<\/li>\n\n\n\n<li> Disk space limitations.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the Issue<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Check Free Space in Tablespace: Use the following SQL query to check available free space:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">SELECT tablespace_name, file_name, bytes\/1024\/1024 AS size_mb, autoextensible \nFROM dba_data_files\nWHERE tablespace_name = '&lt;TABLESPACE_NAME>';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This shows datafile details, including size and whether autoextend is enabled.<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>Identify the Required Space: Use this query to estimate the required space:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">SELECT segment_name, tablespace_name, bytes\/1024\/1024 AS current_size_mb, \nmaxbytes\/1024\/1024 AS max_size_mb \nFROM dba_segments \nWHERE segment_name = '&lt;TABLE_NAME>';<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>Inspect Free Extent: Check free extents in the tablespace:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">SELECT tablespace_name, SUM(bytes)\/1024\/1024 AS free_space_mb\nFROM dba_free_space\nWHERE tablespace_name = '&lt;TABLESPACE_NAME>'\nGROUP BY tablespace_name;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Solutions<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Enable Autoextend on Datafiles<\/strong>: If the datafile doesn\u2019t have autoextend enabled, you can enable it:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">ALTER DATABASE DATAFILE '&lt;DATAFILE_PATH>' AUTOEXTEND ON MAXSIZE UNLIMITED;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This allows Oracle to automatically increase the datafile size as needed.<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Add a New Datafile<\/strong>: If the tablespace is full and can\u2019t be extended, add a new datafile:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">ALTER TABLESPACE &lt;TABLESPACE_NAME> \nADD DATAFILE '\/path\/to\/datafile.dbf' SIZE 500M AUTOEXTEND ON;<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Resize an Existing Datafile<\/strong>: If the datafile has a fixed size, increase it:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">ALTER DATABASE DATAFILE '&lt;DATAFILE_PATH>' RESIZE 1G;<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Clean Up Unused Space<\/strong>: Identify and drop unused or temporary tables to free up space:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">DROP TABLE &lt;TABLE_NAME> PURGE;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Alternatively, shrink tables or segments:<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-sql\">ALTER TABLE &lt;TABLE_NAME> SHRINK SPACE;<\/code><\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>Check Disk Space: If the disk hosting the datafile is full, you\u2019ll need to:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Free up disk space.<\/li>\n\n\n\n<li>Allocate more storage to the disk.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Prevention Tips<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Regularly monitor tablespace usage using queries or monitoring tools.<\/li>\n\n\n\n<li>Enable autoextend for datafiles during database setup.<\/li>\n\n\n\n<li>Set alerts for low free space thresholds.<\/li>\n\n\n\n<li>Implement partitioning for large tables to distribute data across multiple tablespaces<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Resolving ORA-01653 involves analyzing tablespace usage and addressing space constraints either by extending datafiles, adding new ones, or cleaning up unused segments. Proactive monitoring and configuration can help avoid encountering this error in production environments.<br><br>Got stuck? Share your issue in the comments, and we\u2019ll help troubleshoot!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Also read:<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/w3buddy.com\/blog\/how-to-resolve-ora-01536-space-quota-exceeded-for-tablespace\/\">https:\/\/w3buddy.com\/blog\/how-to-resolve-ora-01536-space-quota-exceeded-for-tablespace\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you\u2019ve worked with Oracle databases, you might have encountered the error: This error indicates that Oracle couldn\u2019t allocate enough space in the tablespace to extend the specified table. In this blog post, we\u2019ll cover practical steps to diagnose and resolve this issue. What Causes ORA-01653? Oracle tables grow as data is inserted. When the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowu461DA:productID":"","footnotes":""},"categories":[1225],"tags":[],"class_list":["post-364","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/posts\/364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/comments?post=364"}],"version-history":[{"count":2,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/posts\/364\/revisions"}],"predecessor-version":[{"id":392,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/posts\/364\/revisions\/392"}],"wp:attachment":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/media?parent=364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/categories?post=364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/tags?post=364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}