[中文]
Author:
fuyuncat
Source:
www.HelloDBA.com
Date:
2012-08-14 03:56:53
Fy_Recover_Data is a tool utilizing transplant technology and Table Scan mechanism to recover data of truncated or damaged table. Implemented by PLSQL.
For theory, explaination and example of this package, please refer to: Recover Truncated Data utilizing PLSQL
Functions and Procedure of this package are described as below.-- Update Logs
- -- 15/08/2012, Fuyuncat: ---
- -- 1. Fixed Bug in Clean_Up_Ts (Not change TS status correctly) ---
- -- 2. Added Exception Handle when Restore Data ---
- -- 3. Added Parameter in recover_table, ---
- -- to balance Fault Tolerance and Performance ---
- -- ---
- -- 16/08/2012, Fuyuncat: ---
- -- 1. Enhanced corrupted block processing, get rows as possilbe ---
- -- ---
- -- 17/08/2012, Fuyuncat: ---
- -- 1. Omit the LOB columns raised ORA-22922 exception ---
- -- ---
- -- 20/08/2012, Fuyuncat: ---
- -- 1. Omit the LOB columns via db link ---
- -- ---
- -- 22/08/2012, Fuyuncat: ---
- -- 1. Updated logging and tracing interface ---
- -- ---
- -- 19/02/2014, Fuyuncat: ---
- -- 1. Temp Restore and Recover tablespace & files ---
- -- will be created on temp folder ---
- -- 2. Handle tablespace has files located at diff folders ---
- -- 3. Handle tables on ASM ---
- -- ---
- -- 05/03/2014, Fuyuncat: ---
- -- 1. Fixed bugs ---
- -- 2. Use existing dirctory if applicable ---
- -- 3. Recover data from offline files ---
SQL代码
- create or replace package FY_Recover_Data is
- ---------------------------------------------------------------------------
- -- WWW.HelloDBA.COM ---
- -- Created By: Fuyuncat ---
- -- Created Date: 08/08/2012 ---
- -- Email: Fuyuncat@gmail.com ---
- -- Copyright (c), 2014, WWW.HelloDBA.COM All rights reserved. ---
- -- Latest Version: http://www.HelloDBA.com/Download/FY_Recover_Data.zip ---
- -- ---
- ---------------------------------------------------------------------------
- type r_cursor is REF CURSOR;
- type o_fileprop is record (
- file# number,
- status$ number);
- type t_fileprops is table of o_fileprop;
- /************************************************************************
- ** recover truncated table
- **
- ** tgtowner: Owner of Target Table to be recovered;
- ** tgttable: Name of Target Table to be recovered;
- ** datapath: Absolute path of Data Files;
- ** fbks: block number to be filled in recovery table;
- ** offline_files: Offline data files that data should be recovered from;
- ** foramt: full_path_file1;full_path_file2...;
- ************************************************************************/
- procedure recover_truncated_table( tow varchar2,
- ttb varchar2,
- fbks number default 1,
- tmppath varchar2 default null,
- offline_files varchar2 default null);
- /************************************************************************
- ** dump a block in raw, for testing
- **
- ** hdfile: Data file name;
- ** srcdir: data file directory
- ** blknb: block number to be dumped;
- ** blksz: block size;
- ************************************************************************/
- procedure dump_seg_block_raw( hdfile varchar2,
- srcdir varchar2,
- blknb number,
- blksz number default 8192);
- /************************************************************************
- ** Set Initial parameters
- **
- ** tracing: trace the process for debug;
- ** logging: show logging information;
- ** repobjid: replace the data object id wiht the recover table data object id;
- ************************************************************************/
- procedure init_set( tracing boolean default true,
- logging boolean default true,
- repobjid boolean default true);
- end FY_Recover_Data;
Click Here to download source code of the package.
--- Fuyuncat ---