Making copies of data which may be restored after a data loss event or to recover data from some earlier point in time.

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173
votes
4answers
341k views

How do you mysqldump specific table(s)?

How can I dump a specific table or set of tables without including the rest of the db tables?
12
votes
5answers
36k views

Restoring a backup to an older version of SQL Server

When trying to restore a backup to a SQL Server Express 2008 database I got the following error: Restore failed for Server '...\SQLEXPRESS'. (Microsoft.SqlServer.SmoExtended) ...
8
votes
3answers
805 views

Restricting users to COPY ONLY backups

I am looking to deploy log shipping in my production environment. This will mean I will have to manage backup chains which could be disrupted by people taking backups to refresh development ...
17
votes
3answers
16k views

Is it possible to restore sql-server bak and shrink the log at the same time?

We have a bak file from a client that we have transferred to our developer offices for problem investigation. The backup is currently 25GB and the restored database is about the same size however it ...
31
votes
6answers
4k views

The smallest backup possible … with SQL Server

Daily we ship our SQL Server backups across the WAN. We need to minimize the size of these backups so it does not take forever. We don't mind if our backup process takes a bit longer; as it stands ...
9
votes
4answers
18k views

Any option for mysqldump to ignore databases for backup?

We have 40 databases in our server. We want to take 36 databases backup using mysqldump. How can i ignore remaining 4 databases in mysqldump command? Is there any option for mysqldump to ignore ...
6
votes
1answer
3k views

What is the difference between XtraBackup and rsync?

Yes, I'm going to run strace on them both... However, I would like to know ... What is XtraBackup is doing over and above rsync -ac src dest ? What's so special about XtraBbackup ? How is XtraBackup ...
15
votes
4answers
6k views

Is it possible to backup and restore part of a database in sql-server?

We have a sql-server 2005 database that we regularly transfer from our client site to ours. This takes a long time because we don't have a direct connection and have to transfer the file over their ...
3
votes
2answers
1k views

Quick MySQL Backup

I have a database which is grown to 3GB and it has 3 MyISAM tables. And I have 4GB RAM. What will be the best (quick) way to backup this database without any performance lack. Or mysqldump will work ...
28
votes
2answers
10k views

I/O requests taking longer than 15 seconds

Usually our weekly full backups finish in about 35 minutes, with daily diff backups finishing in ~5 minutes. Since tuesday the dailies have taken almost 4 hours to complete, way more than should be ...
8
votes
2answers
904 views

Can't find process that is creating backups

We have an instance of SQL Server 2008 installed on a customer server. The customer's IT department is in charge of the various backups of the machine. The SQL Server log shows there is a full backup ...
6
votes
3answers
13k views

Why is a .bak so much smaller than the database it's a backup of?

I just took a backup of a SQL Server database. The MDF and LDF files together total around 29 GB, but the .bak file was only 23 GB, about 20% smaller. My first guess when one version of a set of ...
14
votes
5answers
17k views

.bak file not visible in any directory in SSMS

I have a .bak file created today by someone else, manually created through SSMS 2008 R2. I'm trying to manually restore the database, unfortunately the file isn't appearing when I go to browse it. I ...
3
votes
1answer
1k views

Backing up file groups with restore to earlier backup

I have a task: I have created a database with a filegroup lamb that has a few tables. I need to extract a csv into a table in a filegroup named lamb and back up that filegroup. Then extract another ...
2
votes
1answer
692 views

MySQL backup InnoDB

I have a VoIP server running 24x7. At low peak hour at lease 150+ users are connected. My server has MySQL running with InnoDB engine on Windows 2008 platform. I like to take at least 2 times full ...
3
votes
1answer
2k views

Is SQL Server Backup single or multi-threaded?

If you perform a... BACKUP DATABASE [DB_Name] TO DISK=N'c:\backups\db_name.bak' WITH STATS=10 Will that perform a single or multi-threaded write? Our Server support company advised us that if we ...
1
vote
1answer
308 views

Restoring a differential backup in SQL server 2005

I have created a full back up of my database by executing the line below in my application: Dim Query As String = "backup database Ari to disk='G:\Documents and Settings\i\Desktop\BKAR\" & ...
16
votes
5answers
78k views

media family on device is incorrectly formed. SQL Server cannot process this media family

I am trying to restore a .BAK in SQL server but get the following error: Msg 3241, Level 16, State 7, Line 1 The media family on device 'c:\glyn\JA.bak' is incorrectly formed. SQL Server cannot ...
15
votes
3answers
29k views

After moving database (backup, restore), I have to re-add user

I occasionally move a database (SQL Express 2012) from a development machine to a server, or vice versa, using database backup and restore in SQL Server Management Studio. Whenever I do this, the ...
12
votes
3answers
17k views

How can I backup a large SQL Server database without impacting performance?

We've had reports of queries running slowly or timing out early in the morning, and the only job I see running that I think could affect this is our database backup job. The database itself is about ...
8
votes
3answers
2k views

Database backups in Oracle - Export the database or use other tools?

One of the "practices" that I've seen about being performed by DBA's in my organization is to treat a full database export using tools like exp / expdp as backup. Would this be a good practice ? What ...
7
votes
1answer
12k views

Restore encrypted database to another server

I'm using a product which runs on SQLServer 2008. Understandably the company supplying it don't offer SQLServer support. When I installed the product I specified a password to encrypt the database. ...
6
votes
2answers
172 views

Understanding Backup Types

I have recently started a role as a junior DBA... Yesterday I created a new database for a co-worker and my boss asked me to make sure we get a backup plan on it asap. I didn't think much about it, ...
3
votes
2answers
9k views

Restore .Bak file to different Server

I Copied some database backups from one server to another server(new instance no databases are present).I tried restoring using below command Restore database dbname from disk='g:\e2bak\dbname.bak' ...
2
votes
2answers
446 views

SQL Backup tuning large databases

I am tuning SQL backups using compression, writing to multiple files, and changing the BufferCount and MaxTransferSize options. I have SQL instance with a 4 TB database and several smaller databases ...
5
votes
1answer
1k views

MySQL Server Backup

I was wondering if there was any way of making a backup of an entire MySQL Server at regular intervals to a specific location. (If the version is required I can get it easily). If there is, I must ...
5
votes
1answer
962 views

Quick MySQL Backup (1 file per table)

I asked a relevant question few months back and got answer with wide variety of options for backup. But this time I have different scenario and I have got a database with 7 tables and 1 of them has ...
4
votes
2answers
929 views

Difference between backup methods: Oracle and MySQL

I was reading that Oracle databases have cold, warm, full and redo backups. Questions How is it possible that MySQL doesn't have as many options? I have read that MySQL has cold backups (it puts ...
6
votes
2answers
546 views

Does .bak file also contain backup of ldf file?

I am running MS SQL Server, which is holding mdf and ldf files of sizes 110 GB and 245 GB respectively. My question is, if I take .bak backup of said database, will it result in 355 GB (110+245) ...
3
votes
2answers
7k views

Transaction Log Maintanance While Using AlwaysOn Availability Group

We are using HADR ( AlwaysOn Availability Group) feature of SQL Server 2012. Server and AG Configuration as below: SQL12_SRV1 --> AG1(PRIMARY) - SYNC -->> DBTest SQL12_SRV2 --> AG1(SECONDARY) ...
3
votes
2answers
2k views

Move (Restore) SQL Server 2005 database which does not exist before

I did not ready about this but found out after trying to restore a database from remote server and it wont restore if the database did not exist before. What I would do is create a .bak file ...
1
vote
1answer
771 views

MySQLdump on specific db date

I'm new in here and i don't really know where to start but here is my concern. I need to backyp a MySQL DB running under windows once a week. For e.g every friday i need to backup and transfer to ...
9
votes
7answers
963 views

Scheduled backup task doesn't always backup all databases despite always saying job successful

I have a job in SQL 2008 that runs a stored proc to backup all databases. This runs daily via sql server agent job. It quits with success every day but some days it quits with success only after ...
6
votes
1answer
588 views

How to back up a small database in SQL Server 2008 R2 Express Edition

I will shortly be migrating a database from SQL Server 2000 (part of SBS 2003) to SQL Server 2008 R2 Express Edition The database is small, and there are only a few hundred short transactions per day ...
5
votes
6answers
3k views

Backup very large table

I have to update certain values of a large table (for the sake of a presumed example, it is called 'Resource' and it is over 5M rows) and thus I have to make a backup before performing the changes. We ...
4
votes
2answers
2k views

Does a MyISAM table locks if I copy it while MySQL is running? (READ DISCLAIMER)

DISCLAIMER: I'm very aware this is not supposed to be done, but time consistency between tables aren't a concert here and Im trying whatever pops in my mind right now to have alternatives for ...
4
votes
2answers
2k views

Restore all applicable files in a backup device in T-SQL

I'm using SQL Server (2008 R2 in this case) and I am backing up my databases into backup devices (one per database). Every Sunday the device is overwritten with a new full backup, every night a ...
4
votes
1answer
2k views

Does the Amazon RDS backup/snapshot service lock tables?

We have a database that is 100+GB. Most tables use the InnoDB engine. A regular dump takes 1-2 hours. If we moved to Amazon RDS, would this backup cause table locks? Does Amazon use a simple ...
3
votes
1answer
100 views

How to check the health of a SSAS database? And of its backups?

regarding backups of the SSAS databses, based on the following behaviour: Backup on an empty SSAS database hangs Is there a way to check whether or not the SSAS backup is healthy? I would accept ...
3
votes
1answer
79 views

Tool for quickly backup and restore a table

Is there a tool for quickly backup and restore a table's data, preferably to a csv file? It would be best if I could do it using batch. Run a .cmd file and data is backed up into a file with datetime ...
3
votes
2answers
643 views

Copying datadir directory enough for backing up a database with InnoDB tables?

I have an innodb table with 80 million rows and it's extremely slow with mysqldump so I'm thinking of copying the datadir directory for a backup / transfer. I used to copy database with only MyISAM ...
3
votes
1answer
393 views

Postgres Backup queries on AWS after reading Postgres docs

I am reading backup section of postgresql docs before heading over to create backup strategy on my EC2 instance. So there are 2 ways to do it. Create a dump using pg_dump. File level backup with ...
3
votes
1answer
957 views

Wrong behavior in Backups

Checking my Native backup this morning something wierd happened. I will describe the problem here. 1) The msdb table backup set shows me the backup was done successfully. 2) The errorlog shows me ...
2
votes
1answer
302 views

How to verify a SSAS Backup and how to perform Integrity Checks in SSAS?

I have a procedure to backup SSAS Databases that is working successfully. I also delete the SSAS backup files that are older than 2 days. What I am looking forward to implement is: 1) How to verify ...
2
votes
1answer
1k views

MongoDB: move documents before capping

The cappedCollection concept works well for most of my projects where cleaning old data without care makes sense. For another projects, I need a more complex and safe concept. The requirement is ...
2
votes
1answer
3k views

mysql db backup excluding specific tables

Are there any mysql scripts for taking a database backup by excluding specified tables? Also, what is the best way to take backup of a running mysql system?
1
vote
1answer
3k views

What are the optimal mysqldump settings?

After some search I ended up with the following settings: mysqldump\ --host=localhost\ --port=3306\ --databases ****\ --user=****\ --password=****\ ...
1
vote
1answer
8k views

Automatic backups for MySQL Workbench

Is there a way to schedule AUTOMATIC backups for specific tables in MySQL Workbench?
1
vote
4answers
3k views

Daily and Differential Backups [closed]

Is there a program with which I can create daily MySQL, PostgreSQL and MariaDB backups with these requirements: The first time, make a full backup. The second time, only the changes since the last ...
1
vote
3answers
4k views

BACKUP failed to complete - with spaces, for no reason

Every day my database backup fails for some databases and does fine for others. I'm calling the backup through a Stored Procedure that runs scheduled in a job. Tonight I'm going to run the procedure ...