{"id":3502,"date":"2010-09-01T01:33:18","date_gmt":"2010-09-01T05:33:18","guid":{"rendered":"http:\/\/g33kinfo.com\/info\/?p=3502"},"modified":"2010-09-01T01:33:18","modified_gmt":"2010-09-01T05:33:18","slug":"convert-mysql-from-myisam-to-innodb-using-a-script","status":"publish","type":"post","link":"https:\/\/g33kinfo.com\/info\/convert-mysql-from-myisam-to-innodb-using-a-script\/","title":{"rendered":"Convert MySQL from MyISAM to InnoDB Using a Script"},"content":{"rendered":"

From technotes.twosmallcoins.com<\/a><\/p>\n

How to Convert MySQL from MyISAM to InnoDB Using a Script<\/p>\n

Okay. So I need to convert MySQL database using the default MyISAM engine to the InnoDB engine. The command is simple:<\/p>\n

ALTER TABLE table_name ENGINE = InnoDB;<\/code><\/p>\n

However, this command needs to be done for EVERY table. Yes, it\u2019s a pain in the rear\u2026 so here\u2019s a way to do it by scripting.<\/p>\n

Scripting a MySQL InnoDB Engine Conversion<\/strong>:<\/p>\n

1) Backup your database. You should probably be doing this already. Now\u2019s a good time to make sure that your backups ran.<\/p>\n

2) Create the script. You\u2019ll need the correct permissions to query the database. Here\u2019s the command. Be sure to change as it fits.<\/p>\n

mysql -p -e \"show tables in ;\" | tail --lines=+2 | xargs -i echo \"ALTER TABLE {} ENGINE=INNODB;\" > alter_table.sql<\/database_name><\/code><\/p>\n

3) Run the script.<\/p>\n

mysql --database= -p < alter_table.sql<\/code><\/p>\n

Verify it by running this command in mysql:<\/p>\n

mysql> show table status;<\/code><\/p>\n

Discussion (If You\u2019re Interested)<\/p>\n

The script is simply a bunch of ALTER TABLE commands for each of your tables in the database of question.<\/p>\n

The mysql -p -e \u201cshow tables in \u201d command gets a list of the tables. This list has a header that looks like \u201cTables_in_DATABASE\u201d. The tail command drops that first header line. Now you have a clean list of tables. The \"xargs -i echo\" command creates the ALTER TABLE command, inserting the table name where the squiggly braces {} are placed. It\u2019s now stored in alter_table.sql.<\/p>\n

Step two simply runs the script that we stored in alter_table. Both mysql commands will prompt for a password, based on the -p flag.<\/database_name><\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

From technotes.twosmallcoins.com How to Convert MySQL from MyISAM to InnoDB Using a Script Okay. So I need to convert MySQL database using the default MyISAM engine to the InnoDB engine. The command is simple: ALTER TABLE table_name ENGINE = InnoDB; However, this command needs to be done for EVERY table. Yes, it\u2019s a pain in… <\/p>\n

Read More<\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-3502","post","type-post","status-publish","format-standard","hentry","category-info"],"yoast_head":"\nConvert MySQL from MyISAM to InnoDB Using a Script - Linux Shtuff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/g33kinfo.com\/info\/convert-mysql-from-myisam-to-innodb-using-a-script\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convert MySQL from MyISAM to InnoDB Using a Script - Linux Shtuff\" \/>\n<meta property=\"og:description\" content=\"From technotes.twosmallcoins.com How to Convert MySQL from MyISAM to InnoDB Using a Script Okay. 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