If ibdata1 data file size is too big, you can decrease this file. My scenario is that my database have a table and size is 100 GB, I want to take backup and delete all data with decrease datafile size. If I use truncate command, this is not decrease ibdata1 size. I can use backup and drop scenario. I am using MySQL 5.x on Windows Server.<\/p>\n
1-Take Backup With Data<\/strong><\/p>\n Open Command Prompt (cmd) 2-Take Metadata Backup<\/strong><\/p>\n Open Command Prompt 3-Drop Database<\/strong><\/p>\n Open MySQL Client Console 4-Stop MySQL Service<\/strong><\/p>\n Open Services.msc 5-Delete Data Files<\/strong><\/p>\n Open Data Directory 6-Start MySQL Service<\/strong><\/p>\n Open Services.msc 7-Create Database<\/strong><\/p>\n Open MySQL Client Console 8-Restore Metadata From Backup<\/strong><\/p>\n Open Command Prompt (cmd) If ibdata1 data file size is too big, you can decrease this file. My scenario is that my database have a table and size is 100 GB, I want to take backup and delete all data with decrease datafile size. If I use truncate command, this is not decrease ibdata1 size. I can use backup…<\/p>\n","protected":false},"author":37,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[43,42],"tags":[14,100,44],"class_list":["post-821","post","type-post","status-publish","format-standard","hentry","category-administration-mysql","category-mysql","tag-database-administration","tag-mysql","tag-mysql-administration"],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p39NFI-df","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/posts\/821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/users\/37"}],"replies":[{"embeddable":true,"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/comments?post=821"}],"version-history":[{"count":5,"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/posts\/821\/revisions"}],"predecessor-version":[{"id":826,"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/posts\/821\/revisions\/826"}],"wp:attachment":[{"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/categories?post=821"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.fatihacar.com\/blog\/wp-json\/wp\/v2\/tags?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n> mysqldump.exe -u root -p db_name > E:\\db_backup.sql<\/p><\/blockquote>\n
\n> mysqldump.exe -u root -p –no-data db_name > E:\\db_backupmetadata.sql
\nor
\n> mysqldump.exe -u root -p -d db_name > E:\\db_backupmetadata.sql<\/p><\/blockquote>\n
\nmysql> show databases;
\nmysql> drop database db_name;<\/p><\/blockquote>\n
\nMySQL servise has to do stop<\/p><\/blockquote>\n
\nYou can delete ibdata1, ib_logfile0, ib_logfile1 … start with ib..
\nThis files will be recreated as automatic by MySQL service when MySQL service start<\/p><\/blockquote>\n
\nMySQL servise has to do start<\/p><\/blockquote>\n
\nmysql> create database db_name;<\/p><\/blockquote>\n
\n> mysql.exe -u root -p db_name < E:\\db_backupmetadata.sql<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"