How to repair backup of .mdf file database?

Hi folks, One of our clients gets the following error when trying to backup a database:
quote:
System.Data.SqlClient.SqlException: SQL Server detected a logical consistency-based I/O error: incorrect
checksum (expected: 0x121db60d; actual: 0x521db60d). It occurred during a read of page (1:1632) in database ID 4 at offset 0x00000000cc0000 in file 'C:\Program Files (x86)\Microsoft SQL Server\MSSQL.1\MSSQL\DATA\MSDBData.mdf'. Additional messages in the SQL
Server error log or system event log may provide more detail. This is a severe error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many
factors; for more information, see SQL Server Books Online. Could not insert a backup or restore history/detail record in the msdb database. This may indicate a problem with the msdb database. The backup/restore operation was still successful.
I tried to perform checkdb, checkdb repair_rebuild as well as checkdb REPAIR_ALLOW_DATA_LOSS but none of these corrected the issues is the MSDB database. My
question is: can I just grab a clean MSDB database from another instance to recover corrupt one or do I really have to uninstall/reinstall SQL Server?

You should consider restoring from Valid backup as already pointed. if you dont have valid backup you have to rebuild the system databases as Mark said.
Backup and restore of system databases
I would not adivise using Third party recovery tool.
You should also look at SQL server errorlogs and windows event viewer to find out root cause of this issue. You should find out
cause and mitigate it otherwise you would again face corruption issue
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it.
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How to recover deleted attached mdf file from sql server management studio

Hi everyone
I've faced very bad problem
I had a mdf file that created in visual studio, and then I had attached this file to sql server management studio and after that, when I wanted to deattach
this file I had a big mistake; and deleted the mdf file; then now this file was deleted from my computer
I test several recovery tools but they can't find deleted mdf file; the volume of the mdf file was more than 2 GB.
Please help me if you can

Hello,
If you don't have a backup of the database, then it's not really possible to get it back. There are some "Undelete" Tools available for Windows, but when even only one page was overwritten on disk, then it's not possible to recover it.
Olaf Helper
[ Blog] [ Xing] [ MVP]

How do I backup all my files if my Macbook won't start up?

So a few days ago, my dad and I got into a fight - he reacted by pouring coffee all over my macbook, then continuously slammed it on the floor. There wasn't really much I could do for my macbook then, except the basic procedure of powering it off, turning it upside down, then waiting for a couple of days to use it. Luckily enough, my macbook was able to turn on, but it got stuck on the logo screen and couldn't go any further than that.
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yes, the HD contains all you data, SEE PIC BELOW of macbook
Do you have 2 HD in your macbook? Some macbooks are modified and have removed DVD/Superdrives and contain a second hard drive (if you didnt do that, it isnt in there)
The HD itself is sealed, however the internal armature and heads are fragile, these are like records and needle.
obviously torturing these HD heads is like shaking an old record player with its needle and arm (bad idea)
The HD is like a metal sealed box (in simple explanation)....which is GOOD.....since liquid doesnt get in there...
what is BAD is what is inside that box is fragile
also what is bad is that the underside of that "BOX" contains a control board which CAN get ruined by nasty liquids.
if this was also possible to do with the hard drive.
No, dont think of putting any liquid ON / IN the HD, ..as said the HD is sealed, but it does have a circuit board on it (controller board) you cant see in this pic above,.....nasty liquid on it can of course fry the ability to access the data ON the HD platters inside......data recovery experts can get around this,....so can I, but its costly and very "painful" to do.
see picture of that control board here> http://www.irisvista.com/tech/laptops/Toshiba-Portege-R500/small/remove-hard-dri ve-10sm.jpg
inside of a HD:

How to recover .mdf file database?

I am having one of my database in SUSPECT mode.
1) I tried to Detach the database and than attach it, but it did not allow me to detach from the begging.
2) I tried to run the following commands:
ALTER DATABASE Database_Name SET EMERGENCY (Successfully).
ALTER DATABASE Database_Name SET SINGLE_USER (Successfully).
DBCC CHECKDB('Database_Name', REPAIR_ALLOW_DATA_LOSS) (Failed).
All these actions can't provide proper result. I'm using SQL Server 2014. I supposed it can't be possible in such newest version of SQL.

First of all, you can refer to the following article
http://www.sqlskills.com/blogs/paul/creating-detaching-re-attaching-and-fixing-a-suspect-database/
which explains how to detach a suspect database, then re-attach it, and then fix it with DBCC CHECKDB command.
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Then you can repair the database with DBCC CHECKDB.
You are using REPAIR_ALLOW_DATA_LOSS parameter for CHECKDB, which may causes data loss during the recovery process and I normally do not recommend to do so at the first try.
For your case, you may first call dbcc checkdb(mydb, REPAIR_REBUILD) to see if it can fix your database, REPAIR_REBUILD will take longer time but it will not cause data loss. If this command does not work, then you can try dbcc checkdb(mydb, REPAIR_ALLOW_DATA_LOSS),
this command may cause some data loss but it may still be able to recover some data for you.
Moreover, if you still encounter errors after calling these two commands, then you can repair individial tables one by one by calling dbcc checktable('MyTable',REPAIR_ALLOW_DATA_LOSS) and dbcc checktable('MyTable',REPAIR_REBUILD).
So the whole process is just an analysis and repair process, to figure out the best way to retrieve the data. You can find more detailed instructions at
http://www.datanumen.com/sql-recovery/articles/dbcc-checkdb.htm

How to repair a damaged jpg file in iphoto Library

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civil engineering wrote:
You 're wright, i didn't provide you details how the matter occurred and what kind of damage there is.
So i give you the link of another discussion i've opened to look at.
Mac Pro 3.1 os 10.8.5
iphoto 11 problem with showing up some photos
In your other post, you indicated that
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The jpeg repair tool you were using can sometimes recover a photo file if several pixels are missing. Typically the photo is recovered with some black portions corresponding to those missing pixels, probably not optimal but better than nothing.
Unfortunately, your mention of "defragmentation" in connection with the corrupted files is alarming to me. Files on a computer are not stored in one single place, they are typically stored in pieces all over the physical disk. The file catalog provides a map that the computer uses to put these pieces back together when you, say, view a photo. Defragmentation is almost never required for a modern Mac, and if one exercises a defragmentation tool on a system that has a few small directory or catalog problems (caused maybe by a computer freeze or a forced restart), those can become magnified as all the myriad file pieces are moved around ("defragmentation" tries to unify as many of those pieces as possible by physically moving them around on the disk). Which is why making an archive backup is always necessary before defragmentation -- but disk defragmentation is not needed anymore with modern operating systems, I wonder why you would use such a tool as the benefits are small or nonexistent but the potential to greatly magnify a small issue into a big problem is significant.
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How to repair backup disk with disk utility

My Time Capsule is suddenly telling me
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When I start up Disk Utility I cannot see the backup disk anywhere.
Thanks

Suggest that you start with #C3 in Pondini's excellent reference document Time Machine - Troubleshooting
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Only if you export them in the correct format.
If you just save them they will be in the Apple format which will not work on the PC.
Allan

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Thank you for sharing such information, actually I also encountered this kind of problem. But, while searching on internet, I came across Remo repair software which can fix corrupt Photoshop file at your fingertips.

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Hi All,
I just downloaded AdventureWorks2012_Data.mdf file from
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Hi Olaf Helper, Thanks for your response.
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===============================================
Hi Prashanth,
I cannot find/locate the
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Scott Chang
====================================================
P.S. I moved the AdventureWorks2012_Data.mdf file to my C:\Temp folder and did the "Add" again. It located the mdf file. I added the AdventureWorks as the name of Database in SQLEXPRESS, then I clicked Add. I got the following fatalerror:
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wHY DOES IT NOT WORK EITHER?

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I am very new to database programming in Visual Studio and SQL Server Express LocalDB. I went through a walk through of setting up a database project (using visual studio express 2013 for web and SQL Server Express LocalDB), adding tables and entering data
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http://msdn.microsoft.com/en-us/library/ms233763.aspx
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Thanks edencorbin
I am glad to hear that it was helpful and you succeed :-)
With that said, It is time to close the thread :-)
please mark responses that were part of the answer as the answer in order to close the thread. once at least one of the responses in a thread is marked as answer, the thread Icon changed into V and the thread look like it is close(you can continue working
on a thread after this point, but usually new supporters will not check this thread).
Have a good day :-)
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Backups on Physical standby database?

I am using dataguard and a physical standby database.How to assign backups on physical standby database to reduce the load on Primary database.
environment: windows
Database version:11.2.0.1.0
What are the pro and cons on assigning RMAN backups jobs to physical standby database?

Is it better to assign the RMAN backups on standby?i am using the RMAN catalog.Yes, Already mentioned to reduce contention on primary. You can register even standby.
Do i need to change the setting to backup archive logs from standby database? If i won't backup the archive logs on Primary the FRA will be full and i can't access it ?You can include even archive logs with your database backup.
How to assign the archive logs backups,full backup on standby database?Same script will work, Before that cancel MRP and after backup start MRP. That should be fine.
Recently i tested backup from standby and restore, Please see below log.
=================================================================================================
Backup Scrpts:-
=================================================================================================
RMAN> run
2> 3> ALLOCATE CHANNEL dev11 type disk;
4> backup as compressed backupset
5> format '/home/oracle/backup/DBF_FULLCOLD_BKP_%s'
6> filesperset 30
7> (database);
backup current controlfile format
8> 9> '/home/oracle/backup/CTL_FULLCOLD_BKP_%s';
RELEASE CHANNEL dev1;
RELEASE CHANNEL dev2;
10> 11> 12> }
using target database control file instead of recovery catalog
allocated channel: dev11
channel dev11: SID=1 device type=DISK
Starting backup at 03-FEB-13
Starting implicit crosscheck backup at 03-FEB-13
Finished implicit crosscheck backup at 03-FEB-13
Starting implicit crosscheck copy at 03-FEB-13
Crosschecked 4 objects
Finished implicit crosscheck copy at 03-FEB-13
searching for all files in the recovery area
channel dev11: starting compressed full datafile backup set
channel dev11: specifying datafile(s) in backup set
input datafile file number=00001 name=/u01/app/oracle/oradata/orcl/system01.dbf
input datafile file number=00002 name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/orcl/users01.dbf
channel dev11: starting piece 1 at 03-FEB-13
channel dev11: starting compressed full datafile backup set
channel dev11: specifying datafile(s) in backup set
input datafile file number=00001 name=/u01/app/oracle/oradata/orcl/system01.dbf
input datafile file number=00002 name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/orcl/users01.dbf
channel dev11: starting piece 1 at 03-FEB-13
channel dev11: finished piece 1 at 03-FEB-13
piece handle=/home/oracle/backup/DBF_FULLCOLD_BKP_23 tag=TAG20130203T192535 comment=NONE
channel dev11: backup set complete, elapsed time: 00:03:57
channel dev11: starting compressed full datafile backup set
channel dev11: specifying datafile(s) in backup set
including current control file in backup set
channel dev11: starting piece 1 at 03-FEB-13
channel dev11: finished piece 1 at 03-FEB-13
piece handle=/home/oracle/backup/DBF_FULLCOLD_BKP_24 tag=TAG20130203T192535 comment=NONE
channel dev11: backup set complete, elapsed time: 00:00:02
Finished backup at 03-FEB-13
Starting backup at 03-FEB-13
channel dev11: starting full datafile backup set
channel dev11: specifying datafile(s) in backup set
including current control file in backup set
channel dev11: starting piece 1 at 03-FEB-13
channel dev11: finished piece 1 at 03-FEB-13
piece handle=/home/oracle/backup/CTL_FULLCOLD_BKP_25 tag=TAG20130203T192939 comment=NONE
channel dev11: backup set complete, elapsed time: 00:00:03
Finished backup at 03-FEB-13
released channel: dev11
=================================================================================================
Backup Files:-
=================================================================================================
[oracle@oracle-stby backup]$ ls -ltr
total 364572
-rw-r----- 1 oracle oinstall 361684992 Feb 3 19:29 DBF_FULLCOLD_BKP_23
-rw-r----- 1 oracle oinstall   1163264 Feb 3 19:29 DBF_FULLCOLD_BKP_24
-rw-r----- 1 oracle oinstall 10092544 Feb 3 19:29 CTL_FULLCOLD_BKP_25
[oracle@oracle-stby backup]$
=================================================================================================
Restore CONTROL FILE:-
=================================================================================================
RMAN> restore controlfile from '/home/oracle/backup/CTL_FULLCOLD_BKP_25';
Starting restore at 03-FEB-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=19 device type=DISK
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
output file name=/u02/app/oracle/oradata/orcl/control01.ctl
output file name=/u02/app/oracle/flash_recovery_area/orcl/control02.ctl
Finished restore at 03-FEB-13
RMAN> sql 'alter database mount';
sql statement: alter database mount
released channel: ORA_DISK_1
RMAN>
=================================================================================================
Restore Database:-
=================================================================================================
RMAN> restore database;
Starting restore at 03-FEB-13
Starting implicit crosscheck backup at 03-FEB-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=19 device type=DISK
Crosschecked 2 objects
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/orcl/system01.dbf
channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/orcl/sysaux01.dbf
channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/orcl/undotbs01.dbf
Sun Feb 03 19:37:47 2013
Checker run found 4 new persistent data failures
Sun Feb 03 19:38:40 2013
Full restore complete of datafile 3 /u01/app/oracle/oradata/orcl/undotbs01.dbf. Elapsed time: 0:00:56
checkpoint is 1595132
last deallocation scn is 1519218
channel ORA_DISK_1: piece handle=/home/oracle/backup/DBF_FULLCOLD_BKP_23 tag=TAG20130203T192535
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:02:07
Finished restore at 03-FEB-13
RMAN>
=================================================================================================
Open Database:-
=================================================================================================
SQL> alter database open resetlogs;
Database altered.
SQL> select open_mode,database_role from v$database;
OPEN_MODE            DATABASE_ROLE
READ WRITE           PRIMARY
SQL>Edited by: CKPT on Feb 21, 2013 11:24 PM

Repair itunes library (damaged) file. Multiple iTunes libraries on an external harddrive. All libraries have been working fine. Do some "housecleaning" on a one of the large libraries 296GB. iTunes quit and now has damaged file. 296 GB still on HD.

How to repair itunes library (damaged) file. Multiple iTunes libraries on an external harddrive. All libraries have been working fine. Do some "housecleaning" on a one of the large libraries 296GB. iTunes quits and now has damaged file. 296 GB still on HD.

The duplication is unnecessary. Exporting creates a duplicate of the file. So now you'll have a duplicate of a duplicate. Exporting is not "working on" a file.
No it's not merging, it's exporting from one to the Finder and into another. No matter what lose something. If you export the Original you leave behind all the work you've done in iPhoto. If you export anything else, you lose the non-destructive editing and the ability to revert to the original. With merging you preserve that work. Yes, you can trash the old Library when you have completed the manoevre but no it's not the same thing as merging.
This User Tip
https://discussions.apple.com/docs/DOC-4921
has details of the options in the Export dialogue. But in brief:
Current gets you the iPhoto Preview, used for sharing via media browsers. It's a jpg, medium quality missing metadata. Original gets the file you imported, unchanged and then you can export different version of the current version at different qualities. If you choose to export anything except the Original you do not get a Raw. There's no such thing as an "edited Raw", and you lose the connection between the original and the exported version. That means you've taken a non-destructive workflow and turned it into a destructive one.
The Tiff will certainly be higher qulaity and less likely to suffer generational loss in future editing but the file sizes are vast, often more than 10 times the size of the jpeg.
Put it this way, it would be cheaper to buy Library Manager than the disk you'll need to contain all the Tiffs. Unless you plan on a lot of editing, I'd go for a high quality jpeg as a reasonable compromise.
To be clear:
So, I guess my new question is, how can I edit the Raw image and keep it in a RAW format that IPhoto recognizes so that I can reprocess without any loss at a future time, or is it that once you edit a RAW image, then it is no longer a RAW image?
Once you edit a Raw it can no longer be a Raw. End of.

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Zip Repair Toolbox helps to fix corrupted archive in few steps. This tool do not fix exists archive - it extract files from corrupted archive and save files on hard drive.
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