Planet MySQL Planet MySQL: Meta Deutsch Español Français Italiano 日本語 Русский Português 中文
Showing entries 1 to 1

Displaying posts with tag: undelete (reset)

how to undelete rows from a fixed length myisam table
Employee +0 Vote Up -0Vote Down

You have inadvertently deleted some rows from your table and want them back. This is semi-doable with fixed row format of MyISAM. I put together a few steps, which I'll compliment with a program that does it for you, later.

  • save output of SHOW TABLE STATUS LIKE 't1' and SHOW CREATE TABLE `t1`.
  • shutdown mysql server asap!
  • backup t1.frm, t1.MYI, t1.MYD immediately
  • create a new table t1_recover, which has no auto-inc and no unique/pk.
  • remove the files t1_recover.MYD and t1_recover.MYI
  • write a C program that scans through t1.MYD reading blocks of length …

  [Read more...]
Showing entries 1 to 1

Planet MySQL © 1995, 2016, Oracle Corporation and/or its affiliates   Legal Policies | Your Privacy Rights | Terms of Use

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.