{"id":3744,"date":"2025-05-29T17:56:39","date_gmt":"2025-05-29T17:56:39","guid":{"rendered":"https:\/\/w3buddy.com\/?post_type=cposts&#038;p=3744"},"modified":"2025-05-29T17:56:40","modified_gmt":"2025-05-29T17:56:40","slug":"flashback-data-archiver-process-fbda","status":"publish","type":"cposts","link":"https:\/\/w3buddy.com\/blog\/notes\/getting-started-with-oracle-dba\/flashback-data-archiver-process-fbda\/","title":{"rendered":"Flashback Data Archiver Process (FBDA)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Archiving Changes for Table Flashback \ud83d\udcda<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd0d What is FBDA?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>flashback data archiver process (FBDA)<\/strong> helps track and store <strong>transactional changes<\/strong> to tables over time, enabling you to <strong>flashback tables<\/strong> to a previous state.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0\ufe0f How Does FBDA Work?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>When a transaction modifies a tracked table and commits, FBDA:\n<ul class=\"wp-block-list\">\n<li>Reads <strong>undo blocks<\/strong> from the database buffer cache and undo segments in data files.<\/li>\n\n\n\n<li>Filters relevant undo data for objects marked for archival.<\/li>\n\n\n\n<li>Copies this undo info into the <strong>flashback data archive tablespace<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>FBDA maintains metadata about current rows and tracks archived data volume.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2699\ufe0f Key Responsibilities<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Manages flashback data archive<\/strong> for space, partitioning, and retention.<\/li>\n\n\n\n<li>Tracks how far archiving of tracked transactions has progressed.<\/li>\n\n\n\n<li>Runs as either a <strong>thread<\/strong> or an <strong>operating system process<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 Why FBDA Matters<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enables <strong>point-in-time flashback<\/strong> for individual tables.<\/li>\n\n\n\n<li>Provides fine-grained historical data beyond whole database flashback.<\/li>\n\n\n\n<li>Helps maintain compliance with data retention policies.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Archiving Changes for Table Flashback \ud83d\udcda \ud83d\udd0d What is FBDA? The flashback data archiver process (FBDA) helps track and store transactional changes to tables over time, enabling you to flashback tables to a previous state. \ud83d\udee0\ufe0f How Does FBDA Work? \u2699\ufe0f Key Responsibilities \ud83d\udca1 Why FBDA Matters<\/p>\n","protected":false},"template":"","meta":{"googlesitekit_rrm_CAowu461DA:productID":""},"categories":[960,952],"class_list":["post-3744","cposts","type-cposts","status-publish","hentry","category-getting-started-with-oracle-dba","category-notes"],"_links":{"self":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/cposts\/3744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/cposts"}],"about":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/types\/cposts"}],"wp:attachment":[{"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/media?parent=3744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w3buddy.com\/blog\/wp-json\/wp\/v2\/categories?post=3744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}