Reconstructing a database.

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3k views

Oracle Duplicate Database with no archived logs

I am trying to perform a duplicate operation from one server to another (testing disaster recovery) on oracle 11g. I am very much still learning about Oracle. The system is not in production, it is ...
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1answer
589 views

Oracle DB Point In Time Recovery faulted

I'm testing a procedure via RMAN backup to retore/recover at recover-point, but it fails. Exactly I've executed the first time and it works: Backup: RMAN> backup database INCLUDE CURRENT ...
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2answers
163 views

Unable to start Oracle database

We have a oracle database, one data file(users table space) of the instance got corrupt and another data file(containing application data) was deleted due to some issue. The database is in ARCHIVELOG ...
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2answers
148 views

Update old database with SQL dump

I had to recover a database with a some months old full backup. I have however in my possession a most recent but unfortunately incomplete SQL dump for this same database done with mysqldump. Is ...
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1answer
2k views

FATAL: catalog is missing 1 attribute(s) for relid 2662

I have a server with PostgreSQL9.1-903 (Windows 7 Professional). After a power cut my database is inaccessible (I presume that the database is corrupted). The postgreSQL service starts but the ...
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4answers
4k views

Why is Mongo stuck in STARTUP2?

I have a Mongo replica set with a few secondaries. A box, which hosts a secondary instance, crashed and lost the database. I started the secondary Mongo instance again and now it's stuck in STARTUP2 ...
2
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1answer
1k views

How to restore database from /var/lib/mysql

I have a database folder from a crashed server called gain_wordpress. I'm trying to put that database on a new server but I'm not able to do it successfully. I don't have a .sql dump, all I have is ...
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1answer
87 views

Recover innodb mysql 5.6 database WITH ib_logfile0,ib_logfile1, and ibdata1 but WITHOUT .idb files

I had a customer's computer shutdown/crash due to power going out and when mysql tried to boot they got. After I looked in data folder for database and there was just .frm files and no .idb files. ...
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1answer
62 views

Secondary data file is in 'Recovery Pending' state, but database is online

I got an issue. I have a database (Say, DBASE) which have three files - Two data files (namely D:\Data1.mdf and D:\Data2.ndf) and a log file (E:\log.ldf) and all are in different file group. The ...
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1answer
187 views

“Credential retrieval failed” during recovery of an Oracle database

When starting up automatic instance INSTANCE: RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-...
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2answers
593 views

Restore database to point in time from full backup only

I have a database with recovery mode set to FULL. It's a dev database and I have two full backups dated 19th and 27th i.e. latest. One of the developer did some changes on 26th and I want to rollback ...
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2answers
3k views

Postgres corrupted DB recovery

Is there a way to recover data from partially damaged Postgres DB? My HDD was damaged in transport, I was able to recover most of the files but I cannot connect to the DB or use dump: I'm getting ...
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1answer
210 views

mysql Replication and Point in time Recovery

I have a master and a slave mysql database (version 5.1). Is it possible to dump the database only on the slave side? If I do a dump with mysqldump I have a fulldump. Which files can I use for a point ...
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3answers
12k views

Transaction Log maintenance when switching to Simple Recovery

Background: I recently inherited 50+ SQL Servers with 450+ databases. The nightly backups are roughly 8TB and, needless to say, we're using more disk space than we'd like. All of the databases are ...
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2answers
31k views

Rebuilding the transaction log

We have a very large database (~6TB), whose transaction log file was deleted (while SQL Server was shut down. We have tried: Detaching and reattaching the database; and Undeleting the transaction ...
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1answer
109 views

ORA-01122: database file 5 failed verification check

Oracle version: 11g r2 OS: win server 2008 SQL> alter database open; alter database open * ERROR at line 1: ORA-01122: database file 5 failed verification check ORA-01110: ...
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40 views

How to recover from a wrong update query and its cascading influence

Once a mis-DML happens, the backup set and binlog may help to get back the orginal record. However, how can I eliminate the cascading influence resulting from the wrong operation at the start? For ...
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85 views

Database suddenly in recovery-pending

We have a client running 70 databases on a SQL server. Last month they called us that suddenly database wasn't accessible. Database was in recovery pending mode. Today they called us again ...
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0answers
61 views

Will I have to restore controlfile in RMAN level 1 backupset before recover database?

For example, I have a level 0 and level 1 RMAN backupset files like inr00_0413_* inr01_0413_1_* Is it necessary to do this when recover from RMAN level 1 backup: restore controlfile from ...
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1answer
148 views

systemctl startup script gives “WSREP: Failed to recover position” - manual startup works

We have a Galera crash. 3 Nodes on RHEL7. I can start one node with this command # sudo -u mysql /usr/libexec/mysqld --wsrep-cluster-address='gcomm://' 160408 13:36:24 [Warning] Could not increase ...
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33 views

Recover deleted lines in SQL

I read your answer on how to track que log from deleted lines : View delete statements in the Transaction log I can see the log, but now how do I recover the lines back to to the table? Can you help ...
2
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1answer
527 views

Availability Group database stuck in Not Synchronizing / Recovery Pending mode

While upgrading the storage in a SQL Server 2014 SP1 (12.0.4422.0) instance we ran in to an issue where two of the databases would not start on the secondary after restarting SQL Server. The server ...
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2answers
2k views

MySQL Database and Table Loss

I have installed mysql and XAMPP on my system. I wanted to remove the mysql service of XAMPP. After removing it, I tried to install the new service for mysql using "MySQLInstanceConfig.exe". but now I ...
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0answers
29 views

How to troubleshoot ORA-00333 with NOARCHIVELOG mode

I'm getting the following errors when I try to connect to database: ORA-00333: refaire bloc 8746 d'erreur de lecture de journal compte 7562 Errors in file C:\ORACLE11G\diag\rdbms\aim51\aim51\trace\...
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1answer
428 views

Database msdb stuck in recovery

I encountered a problem while testing recovering backups (Veritas BackUp Exec 2015, just for you to know). Main Problem is: I couldnt restore the databases - looking on the target Server where I want ...
0
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1answer
25 views

How to restore truncated MySQL table from binary logs?

I have a mysql server and while working on it I accidentlly truncated the wrong table. I do have a mysql dump wich I immediately used to restore my database structure, but I still miss some entries in ...
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3answers
325 views

Oracle 11g ORA-01190: control file or data file 1 is from before the last RESETLOGS

I am running Oracle 11GR2, Enterprise Edition Release 11.2.0.3.0. I got one of my Test DBs corrupted today. Luckily, I have 2 weeks of backups in the Net Backup server, so I thought, "This is easy, ...
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35 views

How do I recover my data in Oracle

I am using Oracle 11 XE, I have some small applications on this, by mistake I have uninstalled Oracle from the system. But I can see the data files still existing in the server in this folder D:\oraxe\...
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92 views

InnoDB crashes on trx rollback

I have InnoDB assertion failure during the trx rollback 160316 10:47:31 InnoDB: Rolling back trx with id 5ADBE4173, 1 rows to undo 160316 10:47:31 InnoDB: Assertion failure in thread ...
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2answers
71 views

SQL Server database stuck in Recovery after Restoring .BAK to same instance

We've had an issue crop up a few times -- maybe we're not using 'best practices' to restore, but appreciate any advice. We run an IIS app with a SQL Server database, and sometimes we run two+ ...
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0answers
23 views

Can I merge a newer version of a database with a backup copy

I have a backup of a database, and a newer version of the database. The newer copy, however, is does not include information that is in the older backup. I want to merge these into one - all tables. ...
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5answers
10k views

SQL Server mirrored database is stuck in recovery mode

I have a database that is stuck in recovery mode for few days already. There are multiple threads about this, but the solutions there don't work for me. Here is what I tried already: RESTORE ...
2
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1answer
41 views

How do I recover my database after losing a tablespace with indexes?

I'm thinking of moving all the indexes in my PostgreSQL 9.3 database to a tablespace on an SSD for improved performance. This SSD is not in a RAID array and I need to consider a scenario where it ...
2
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1answer
172 views

Can I get pg_rewind to show me lost data after a Postgres failover?

Say I have Postgres setup with a warm standby using the build in replication features. Now, imagine a scenario where the data centre the master loses power and the slave is in another data centre and ...
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0answers
52 views

Three Vital Postgres Columns Corrupted

I run a small website which uses a Postgres database. There are regular back ups based on the amount of traffic we have every few days but there was a recent surge of activity just before a power cut ...
2
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3answers
192 views

Automated regular tests of your backups

I was doing some investigation on how other DBAs go about performing automated regular tests of their database backups to ensure recoverability in case of disaster and I'm quite disappointed at what ...
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1answer
51 views

Is there any way to recover lost table data on sql server without backups?

Unfortunately some tables are completely deleted with important data. The database is hosted on azure, but there is no back up for past 1 month as well. Is there any way I can get the lost data? The ...
2
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1answer
75 views

Change recovery mode and enforce a transaction log backup?

I am going to do a special data deletion operation - once and during a maintenance with no user access (Sql 2008 r2). The result is a large deletion of millions of blob data from a table by re-...
6
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1answer
826 views

Why does database recovery take so long?

On my SQL Server 2012 x64 Std instance I had a large transaction fail due to the transaction log filling up yesterday, it couldn't be rolled back and SQL Server has restarted the specific DB to ...
4
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0answers
61 views

VLDB is stuck in recovery state. It's a permission issue, now what should I do?

SQL Server database which is very large (4TB) is stuck in recovery state. Reason: Data center had a planned downtime and we had to turn the physical machine off and when it turned on, as I read in ...
2
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1answer
424 views

Why do the databases go into the “recovery pending” state when the share permissions are changed from “everyone”?

Yesterday we had a power failure and after the power was back our financial databases on the SQL did fall into "Recovery Pending" state. After struggling a while I've remembered that a few days ago we ...
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2answers
43 views

Restore PostgreSQL database (or db names) to new version, from files?

Scenario in short: a development laptop broke old HDD is still readable new laptop has PostgreSQL 9.4 instead of 9.1 both laptops use a flavor of Ubuntu Linux Question 1: Is my understanding ...
3
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1answer
217 views

Reattaching MDF files recovered from RAID 5

We had been running a SQL Server 2005 server for many years at our company when just recently, we ran into some trouble. The server was configured with RAID 5 and had one hot spare disk in the array. ...
3
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0answers
91 views

Recovery from Live to a new Slave Server - PostgreSQL - ERROR

I've started a new SLAVE PostgreSQL server set up. master: 192.168.100.1 slave1: 192.168.100.2 slave2(NEW SLAVE) 192.168.100.3 * NOTE: I run the pg_basebackup from another STANDBY SERVER. Not ...
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0answers
157 views

How to fix postgres stuck in recovery mode?

I have Jira and Confluence installed in a server. We didn't have any free disk space one day, and these services didn't started correctly, so after deleting some files we now have some free space ...
0
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1answer
40 views

How to recover the data from Redo Log Group which has not been archived yet

I have a normal situation where we have 3 Redo Groups (A,B & C) with 1 member (100 MB) each and database is also in Archive log Mode. In normal scenarios whenever there is redo log switch, there ...
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48 views

mysql innodb - strange data loss

I am running a mysql database on linux with several InnoDB tables. At some point, the ibdata1 file got quite big and I wanted to delete it. So I made a dump, deleted the file and restarted the server. ...
4
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2answers
6k views

RMAN-06054: media recovery requesting unknown archived log, Where is SCN kept?

I have the following situation: Backups of DB1(located on srv1 server) database are taken everyday at 1:00 AM. I took backed up files(datafile,archivelog,controlfile,spfile) of 24/10/2011 and ...
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1answer
39 views

automatic innodb redo log archiving

We have an option to do recovery through bin-logs, but we thought recovery through bin-logs is not 99% consistent because there is no LSN(Log Sequence Number)/SCN (System Change Number) in bin-logs (...
7
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1answer
391 views

Is it possible to restore SQL Server DB from transaction log (no MDF)?

We had a SQL Server 2005 server that housed roughly 200 low/no traffic archive databases, and that server was not backed up to any other device. The database files (MDF and LDF) were stored on a RAID ...