当前位置：网站首页>Use package FY in Oracle_ Recover_ Data. PCK to recover the table of truncate misoperation
Use package FY in Oracle_ Recover_ Data. PCK to recover the table of truncate misoperation
2022-07-06 23:53:00 【Hua Weiyun】
One 、 brief introduction
The content sorted out before ：http://blog.itpub.net/26736162/viewspace-2082965/
Misoperation execution truncate There are many ways to recover after , Here again fy_recover_data package , By master Fuyunca Development . The package uses pure plsql Statement recovery is truncate Lost watch , Simple operation , For the contents of the package, please refer to the appendix at the end of this article .
Fy_Recover_Data It's using Oracle Table scanning mechanism 、 Data grafting mechanism recovery TRUNCATE Or a toolkit to corrupt data . From pure PLSQL To write , Schematic diagram is as follows ：
Two 、 Introduction to the experimental environment
| project | db |
|---|---|
| db type | Single instance |
| db version | 19.3.0.0 |
| db Storage | FS |
| host IP Address /hosts To configure | 192.168.66.35 |
| OS Version and kernel edition | CentOS 7.6 |
| Archiving mode | Archive Mode |
| ORACLE_SID | lhrsdb |
3、 ... and 、 Experimental code
-- Prepare the data set timing on;set serveroutput on;create table lhr.LHRTB_210702 as SELECT * FROM dba_objects;SELECT COUNT(1) FROM lhr.LHRTB_210702;INSERT INTO lhr.LHRTB_210702 SELECT * FROM lhr.LHRTB_210702;INSERT INTO lhr.LHRTB_210702 SELECT * FROM lhr.LHRTB_210702;commit;SELECT COUNT(1) FROM lhr.LHRTB_210702;SELECT d.BYTES/1024/1024 FROM dba_segments d WHERE d.segment_name ='LHRTB_210702';truncate table lhr.LHRTB_210702;SELECT COUNT(1) FROM lhr.LHRTB_210702;-- The data has been truncate It fell off , Next, let's recover @/tmp/FY_Recover_Data.pckexec fy_recover_data.recover_truncated_table('LHR','LHRTB_210702');SELECT COUNT(1) FROM lhr.LHRTB_210702$$;alter table lhr.LHRTB_210702 nologging;insert /*+append*/ into lhr.LHRTB_210702 select * from lhr.LHRTB_210702$$;commit;alter table lhr.LHRTB_210702 logging;SELECT COUNT(1) FROM lhr.LHRTB_210702;-- Clean up the data drop tablespace FY_REC_DATA including contents and datafiles;drop tablespace FY_RST_DATA including contents and datafiles;Four 、 Experimental process
4.1、 Prepare the data
Microsoft Windows [ edition 10.0.17134.765](c) 2018 Microsoft Corporation. All rights reserved .C:\Users\lhrxxt>sqlplus sys/lhr@192.168.66.35:11521/lhrsdb as sysdbaSQL*Plus: Release 12.1.0.2.0 Production on Fri Jul 2 16:00:36 2021Copyright (c) 1982, 2014, Oracle. All rights reserved.Connected to:Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - ProductionSYS@192.168.66.35:11521/lhrsdb> set timing on;SYS@192.168.66.35:11521/lhrsdb> set serveroutput on;SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> select * from v$version;BANNER BANNER_FULL BANNER_LEGACY CON_ID-------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------- ----------Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production 0 Version 19.3.0.0.0Elapsed: 00:00:00.15SYS@192.168.66.35:11521/lhrsdb> create user lhr identified by lhr;User created.Elapsed: 00:00:00.26SYS@192.168.66.35:11521/lhrsdb> grant dba to lhr;Grant succeeded.Elapsed: 00:00:00.12SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> create table lhr.LHRTB_210702 as SELECT * FROM dba_objects;Table created.Elapsed: 00:00:01.83SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> INSERT INTO lhr.LHRTB_210702 SELECT * FROM lhr.LHRTB_210702;72690 rows created.Elapsed: 00:00:00.67SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> INSERT INTO lhr.LHRTB_210702 SELECT * FROM lhr.LHRTB_210702;145380 rows created.Elapsed: 00:00:00.91SYS@192.168.66.35:11521/lhrsdb> commit;Commit complete.Elapsed: 00:00:00.11SYS@192.168.66.35:11521/lhrsdb> SELECT COUNT(1) FROM lhr.LHRTB_210702; COUNT(1)---------- 290760Elapsed: 00:00:00.19SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> SELECT d.BYTES/1024/1024 FROM dba_segments d WHERE d.segment_name ='LHRTB_210702';D.BYTES/1024/1024----------------- 45Elapsed: 00:00:00.604.2、 Perform misoperation
SYS@192.168.66.35:11521/lhrsdb> truncate table lhr.LHRTB_210702;Table truncated.Elapsed: 00:00:00.59SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> SELECT COUNT(1) FROM lhr.LHRTB_210702; COUNT(1)---------- 0Elapsed: 00:00:00.184.3、 Start recovery
SYS@192.168.66.35:11521/lhrsdb> @D:\FY_Recover_Data.pckPackage created.Elapsed: 00:00:00.29Package body created.Elapsed: 00:00:00.67SYS@192.168.66.35:11521/lhrsdb> select * from v$tablespace; TS# NAME INC BIG FLA ENC CON_ID---------- ------------------------------ --- --- --- --- ---------- 1 SYSAUX YES NO YES 0 0 SYSTEM YES NO YES 0 2 UNDOTBS1 YES NO YES 0 4 USERS YES NO YES 0 3 TEMP NO NO YES 0Elapsed: 00:00:00.16SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> exec fy_recover_data.recover_truncated_table('LHR','LHRTB_210702');16:03:26: New Directory Name: FY_DATA_DIR16:03:26: Recover Tablespace: FY_REC_DATA; Data File: FY_REC_DATA.DAT16:03:26: Restore Tablespace: FY_RST_DATA; Data File: FY_RST_DATA.DAT16:03:27: Recover Table: LHR.LHRTB_210702$16:03:27: Restore Table: LHR.LHRTB_210702$$16:03:49: Copy file of Recover Tablespace: FY_REC_DATA_COPY.DAT16:03:49: begin to recover table LHR.LHRTB_21070216:03:50: New Directory Name: TMP_HF_DIR16:03:52: Recovering data in datafile /opt/oracle/oradata/LHRSDB/users01.dbf16:03:52: Use existing Directory Name: TMP_HF_DIR16:06:25: 5662 truncated data blocks found.16:06:25: 290760 records recovered in backup table LHR.LHRTB_210702$$16:06:25: Total: 5662 truncated data blocks found.16:06:25: Total: 290760 records recovered in backup table LHR.LHRTB_210702$$16:06:25: Recovery completed.16:06:25: Data has been recovered to LHR.LHRTB_210702$$PL/SQL procedure successfully completed.Elapsed: 00:02:59.27SYS@192.168.66.35:11521/lhrsdb> SELECT COUNT(1) FROM lhr.LHRTB_210702$$; COUNT(1)---------- 290760Elapsed: 00:00:00.52SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> alter table lhr.LHRTB_210702 nologging;Table altered.Elapsed: 00:00:00.25SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> insert /*+append*/ into lhr.LHRTB_210702 select * from lhr.LHRTB_210702$$;290760 rows created.Elapsed: 00:00:01.99SYS@192.168.66.35:11521/lhrsdb> commit;Commit complete.Elapsed: 00:00:00.91SYS@192.168.66.35:11521/lhrsdb> alter table lhr.LHRTB_210702 logging;Table altered.Elapsed: 00:00:00.11SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> SELECT COUNT(1) FROM lhr.LHRTB_210702; COUNT(1)---------- 290760Elapsed: 00:00:00.254.4、 Clean up temporary data
SYS@192.168.66.35:11521/lhrsdb> select * from v$tablespace; TS# NAME INC BIG FLA ENC CON_ID---------- ------------------------------ --- --- --- --- ---------- 1 SYSAUX YES NO YES 0 0 SYSTEM YES NO YES 0 2 UNDOTBS1 YES NO YES 0 4 USERS YES NO YES 0 3 TEMP NO NO YES 0 6 FY_REC_DATA YES NO YES 0 7 FY_RST_DATA YES NO YES 07 rows selected.SYS@192.168.66.35:11521/lhrsdb> set pagesize 9999 line 9999SYS@192.168.66.35:11521/lhrsdb> col TS_Name format a30SYS@192.168.66.35:11521/lhrsdb> col PDBNAME format a15SYS@192.168.66.35:11521/lhrsdb> col TS_NAME format a20SYS@192.168.66.35:11521/lhrsdb> col LOGGING format a10SYS@192.168.66.35:11521/lhrsdb> WITH wt1 AS 2 (SELECT ts.TABLESPACE_NAME, 3 df.all_bytes, 4 decode(df.TYPE, 5 'D', 6 nvl(fs.FREESIZ, 0), 7 'T', 8 df.all_bytes - nvl(fs.FREESIZ, 0)) FREESIZ, 9 df.MAXSIZ, 10 ts.BLOCK_SIZE, 11 ts.LOGGING, 12 ts.FORCE_LOGGING, 13 ts.CONTENTS, 14 ts.EXTENT_MANAGEMENT, 15 ts.SEGMENT_SPACE_MANAGEMENT, 16 ts.RETENTION, 17 ts.DEF_TAB_COMPRESSION, 18 df.ts_df_count 19 FROM dba_tablespaces ts, 20 (SELECT 'D' TYPE, 21 TABLESPACE_NAME, 22 COUNT(*) ts_df_count, 23 SUM(BYTES) all_bytes, 24 SUM(decode(MAXBYTES, 0, BYTES, MAXBYTES)) MAXSIZ 25 FROM dba_data_files d 26 GROUP BY TABLESPACE_NAME 27 UNION ALL 28 SELECT 'T', 29 TABLESPACE_NAME, 30 COUNT(*) ts_df_count, 31 SUM(BYTES) all_bytes, 32 SUM(decode(MAXBYTES, 0, BYTES, MAXBYTES)) 33 FROM dba_temp_files d 34 GROUP BY TABLESPACE_NAME) df, 35 (SELECT TABLESPACE_NAME, 36 SUM(BYTES) FREESIZ 37 FROM dba_free_space 38 GROUP BY TABLESPACE_NAME 39 UNION ALL 40 SELECT tablespace_name, 41 SUM(d.BLOCK_SIZE * a.BLOCKS) bytes 42 FROM gv$sort_usage a, 43 dba_tablespaces d 44 WHERE a.tablespace = d.tablespace_name 45 GROUP BY tablespace_name) fs 46 WHERE ts.TABLESPACE_NAME = df.TABLESPACE_NAME 47 AND ts.TABLESPACE_NAME = fs.TABLESPACE_NAME(+)) 48 SELECT (SELECT A.TS# 49 FROM V$TABLESPACE A 50 WHERE A.NAME = UPPER(t.TABLESPACE_NAME)) TS#, 51 t.TABLESPACE_NAME TS_Name, 52 round(t.all_bytes / 1024 / 1024) ts_size_M, 53 round(t.freesiz / 1024 / 1024) Free_Size_M, 54 round((t.all_bytes - t.FREESIZ) / 1024 / 1024) Used_Size_M, 55 round((t.all_bytes - t.FREESIZ) * 100 / t.all_bytes, 3) Used_per, 56 round(MAXSIZ / 1024 / 1024/1024, 3) MAX_Size_g, 57 round(decode(MAXSIZ, 0, to_number(NULL), (t.all_bytes - FREESIZ)) * 100 / 58 MAXSIZ, 59 3) USED_per_MAX, 60 round(t.BLOCK_SIZE) BLOCK_SIZE, 61 t.LOGGING, 62 t.ts_df_count 63 FROM wt1 t 64 UNION ALL 65 SELECT to_number('') TS#, 66 'ALL TS:' TS_Name, 67 round(SUM(t.all_bytes) / 1024 / 1024, 3) ts_size_M, 68 round(SUM(t.freesiz) / 1024 / 1024) Free_Size_m, 69 round(SUM(t.all_bytes - t.FREESIZ) / 1024 / 1024) Used_Size_M, 70 round(SUM(t.all_bytes - t.FREESIZ) * 100 / SUM(t.all_bytes), 3) Used_per, 71 round(SUM(MAXSIZ) / 1024 / 1024/1024) MAX_Size, 72 to_number('') "USED,% of MAX Size", 73 to_number('') BLOCK_SIZE, 74 '' LOGGING, 75 to_number('') ts_df_count 76 FROM wt1 t 77 order by TS# 78 ; TS# TS_NAME TS_SIZE_M FREE_SIZE_M USED_SIZE_M USED_PER MAX_SIZE_G USED_PER_MAX BLOCK_SIZE LOGGING TS_DF_COUNT---------- -------------------- ---------- ----------- ----------- ---------- ---------- ------------ ---------- ---------- ----------- 0 SYSTEM 910 4 906 99.54 32 2.764 8192 LOGGING 1 1 SYSAUX 670 30 640 95.476 32 1.952 8192 LOGGING 1 2 UNDOTBS1 345 271 74 21.413 32 .225 8192 LOGGING 1 3 TEMP 33 27 6 18.182 32 .018 8192 NOLOGGING 1 4 USERS 344 2 341 99.291 32 1.042 8192 LOGGING 1 6 FY_REC_DATA 0 0 0 100 0 100 8192 LOGGING 1 7 FY_RST_DATA 57 3 54 95.154 32 .165 8192 LOGGING 1 ALL TS: 2358.625 338 2021 85.678 1928 rows selected.Elapsed: 00:00:00.59SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> drop tablespace FY_REC_DATA including contents and datafiles;Tablespace dropped.Elapsed: 00:00:12.01SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb>SYS@192.168.66.35:11521/lhrsdb> drop tablespace FY_RST_DATA including contents and datafiles;Tablespace dropped.Elapsed: 00:00:11.43SYS@192.168.66.35:11521/lhrsdb> drop table lhr.LHRTB_210702$$;drop table lhr.LHRTB_210702$$ *ERROR at line 1:ORA-00942: table or view does not existElapsed: 00:00:00.15SYS@192.168.66.35:11521/lhrsdb>On the whole, with fy_recover_data The bag is very good ,fy_recover_data Can recover truncate The data of , But it can't recover drop The data of .
边栏推荐
- Asset security issues or constraints on the development of the encryption industry, risk control + compliance has become the key to breaking the platform
- MATLIB从excel表中读取数据并画出函数图像
- 达晨史上最大单笔投资，今天IPO了
- Zero code and high return. How to use 40 sets of templates to meet 95% of the reporting needs in the work
- pinia 模块划分
- 英国都在试行4天工作制了，为什么BAT还对996上瘾？
- 为什么完全背包要用顺序遍历？简要解释一下
- Compile logisim
- 吴恩达2022机器学习课程评测来了！
- Wasserstein slim gain with gradient poverty (wsgain-gp) introduction and code implementation -- missing data filling based on generated countermeasure network
猜你喜欢
电脑重装系统u盘文件被隐藏要怎么找出来
The programmer said, "I'm 36 years old, and I don't want to be rolled, let alone cut."
17、 MySQL - high availability + read / write separation + gtid + semi synchronous master-slave replication cluster
2022 latest blind box mall complete open source operation source code / docking visa free payment interface / building tutorial
Master binary tree in one article
![[boutique] Pinia Persistence Based on the plug-in Pinia plugin persist](/img/53/95ab85bfd99d943f98881596d0aa8c.png)
[boutique] Pinia Persistence Based on the plug-in Pinia plugin persist
【OFDM通信】基于深度学习的OFDM系统信号检测附matlab代码
Pytest multi process / multi thread execution test case
DAY FIVE
Every year, 200 billion yuan is invested in the chip field, and "China chip" venture capital is booming
随机推荐
The largest single investment in the history of Dachen was IPO today
ArrayExpress数据库里的细胞只有两个txt是不是只能根据Line到ENA下载测序跑矩阵？
【212】php发送post请求有哪三种方法
《数字经济全景白皮书》保险数字化篇 重磅发布
The method of reinstalling win10 system is as simple as that
Local deployment Zeppelin 0.10.1
吴恩达2022机器学习课程评测来了！
公链与私链在数据隐私和吞吐量上的竞争
短链的设计
DAY FOUR
How does win11 restore the traditional right-click menu? Win11 right click to change back to traditional mode
[212] what are three methods for PHP to send post requests
Compile logisim
基于jsp+servlet+mysql框架的旅游管理系统【源码+数据库+报告】
app通用功能测试用例
The important data in the computer was accidentally deleted by mistake, which can be quickly retrieved by this method
本地部署 zeppelin 0.10.1
Talking about the current malpractice and future development
11 preparations for Web3 and Decentralization for traditional enterprises
零代码高回报，如何用40套模板，能满足工作中95%的报表需求