I want to back up a database using this code
sqlcmd -S servername -Q "BACKUP DATABASE [DBName] TO DISK = 'C:\backup.bak'"
It works. But if the backup file already exists, the data gets appended to the file instead of replacing the file. Every time I call BACKUP DATABASE the file gets bigger.
Is there an option for BACKUP DATABASE to force a replace?
sqlcmd -S servername -Q "BACKUP DATABASE [DBName] TO DISK = 'C:\backup.bak' WITH INIT"
INIT does the trick. From MSDN:
INIT Specifies that all backup sets should be overwritten
WITH INIT is not enough. Should be WITH INIT, SKIP these days. Docs
Explanation: INIT overwrites only if some conditions are met. SKIP instructs to ignore those conditions.
BACKUP DATABASE SQ_P TO DISK='D:\Data Backup\SQ_P.bak' with init;
where SQ_P is the Database Name
Related
I have to restore a database and am following this official documentation where I follow two steps:
- List the files
- Run the Restore command with respect to the files aforementioned.
However, I am facing "already claimed" error.
I tried to use different names but it is not possible since the backup has certain files. I also tried other answers across different domains, all have GUI.
The first command that I ran was:
sudo docker exec -it sql1 /opt/mssql-tools/bin/sqlcmd -S localhost \
-U SA -P '<YourStrong#Passw0rd>' \
-Q 'RESTORE FILELISTONLY FROM DISK = "/var/opt/mssql/backup/us_national_statistics.bak"' \
| tr -s ' ' | cut -d ' ' -f 1-2
I got the following output:
LogicalName PhysicalName
-------------------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
us_national_statistics C:\Program
us_national_statistics_log C:\Program
Then, as per the documentation, I ran this command:
sudo docker exec -it sql1 /opt/mssql-tools/bin/sqlcmd \
-S localhost -U SA -P '<YourStrong#Passw0rd>' \
-Q 'RESTORE DATABASE US_NATIONAL FROM DISK = "/var/opt/mssql/backup/us_national_statistics.bak" WITH MOVE "us_national_statistics" TO "C:\Program", MOVE "us_national_statistics_log" TO "C:\Program"'
Here, I get the following error:
Msg 3176, Level 16, State 1, Server 0a6a6aac7476, Line 1
File 'C:\Program\New' is claimed by 'us_national_statistics_log'(2) and 'us_national_statistics'(1). The WITH MOVE clause can be used to relocate one or more files.
Msg 3013, Level 16, State 1, Server 0a6a6aac7476, Line 1
RESTORE DATABASE is terminating abnormally.
I expect the database to be restored.
You can't restore to C:\Program for multiple reasons. That's not a full path (you seem to have lost the string after the first space in Program Files); the data and log can't both be put in the same file; you don't typically have write access to the root of any drive; and C:\ is not valid in Docker or Linux.
You need the LogicalName, but you should not be using the PhysicalName directly, either in the case where you are restoring to Docker or Linux, or in the case where you are restoring a database alongside an existing copy that you want to keep, or in the case where you are restoring a database to a different instance (which will more than likely have a different data folder structure).
Try:
RESTORE DATABASE US_NATIONAL_COPY
FROM DISK = "/var/opt/mssql/backup/us_national_statistics.bak"
WITH REPLACE, RECOVERY,
MOVE "us_national_statistics" TO "/var/opt/mssql/data/usns_copy.mdf",
MOVE "us_national_statistics_log" TO "/var/opt/mssql/data/usns_copy.ldf";
I'm trying to back up my production database to my local dev machine with the following constraints:
It will be a regular backup, so using the UI should (ideally?) be avoided.
Some tables are marked to be deleted, so these should not be included in the backup.
I would like to be able to pass the solution (file/package/etc) to other members of the team and they should only have to change a couple of variables in one file and then they can execute and get their own backup.
The DB is over 100GB and contains data that I won't need. I have identified the top largest tables and would only like to take say 5k rows from each - this should provide me with enough data for my purposes and limit space used on my local drives.
I have tried beginning with backing up the schema only using the following methods:
Using the UI to backup Schema only (Tasks -> Generate Scripts)
Get the following error:
Microsoft.SqlServer.Management.Smo.FailedOperationException: Discover dependencies failed. ---> System.ArgumentException: Item has already been added. Key in dictionary: 'Server[#Name='PRODSQL']/Database[#Name='Database1']/UnresolvedEntity[#Name='SomeObjectName' and #Schema='Some.Schema.SomeObjectName']' Key being added: 'Server[#Name='PRODSQL']/Database[#Name='Database1']/UnresolvedEntity[#Name='SomeObjectName' and #Schema='Some.Schema.SomeObjectName']' at System.Collections.SortedList.Add(Object key, Object value) at Microsoft.SqlServer.Management.Smo.DependencyTree..ctor(Urn[] urns, DependencyChainCollection dependencies, Boolean fParents, Server server) at Microsoft.SqlServer.Management.Smo.DependencyWalker.DiscoverDependencies(Urn[] urns, Boolean parents) --- End of inner exception stack trace --- at Microsoft.SqlServer.Management.SqlScriptPublish.GeneratePublishPage.worker_DoWork(Object sender, DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
So I moved on.
Tasks -> Copy Database
I get a message saying there is not enough space on disk
Extract Data-tier Application
Get same error as in 1. above.
Powershell script, and a batch file calling sqlcmd on the generated .sql files after the PS script was run.
I was sure this method would work and it took me 2 days to get this far, but still working through multiple errors.
Basically I am doing the following:
Create db objects from the source DB (Schemas, SPs, Tables, Views, UDFs, Triggers, Indexes) and output them to .sql files - Roughly followed http://cfmumbojumbo.com/index.cfm/coding/using-powershell-to-backup-your-stored-procedures-and-triggers/ with some more work added.
If the database already exists on my server, kill, drop, then recreate it (DropCreate.sql):
IF(db_id(#DatabaseName) IS NOT NULL)
BEGIN
DECLARE #SQL VARCHAR(max)
SELECT #SQL = COALESCE(#SQL,'') + 'Kill ' + Convert(VARCHAR, SPId) + ';'
FROM MASTER..SysProcesses
WHERE DBId = DB_ID(#DatabaseName) AND SPId <> ##SPId
EXEC(#SQL);
END
DROP DATABASE MYDATABASE
CREATE DATABASE MYDATABASE ON PRIMARY (...)
The .bat file is essentially doing this
sqlcmd -S %Server% -U %UserName% -P %Password% -i C:\Database\DatabaseScripts\TestDatabase\DropCreateDB.sql
#loop through and execute multiple .sql files in the directory
for /f %f in (`dir /b C:\Database\DatabaseScripts\TestDatabase\2018-04-18-15-13-13\StoredProcedures\`) do sqlcmd -S %Server% -d %Database% -U %UserName% -P %Password% -i %f
#Just one sql file in this directory, execute it
sqlcmd -S %Server% -d %Database% -U %UserName% -P %Password% -i C:\Database\DatabaseScripts\TestDatabase\2018-04-18-15-13-13\Schemas\AllSchemas.sql
sqlcmd -S %Server% -d %Database% -U %UserName% -P %Password% -i C:\Database\DatabaseScripts\TestDatabase\2018-04-18-15-13-13\Tables\AllTables.sql
.............
The latest error I'm experiencing is:
Changed database context to 'master'.
Msg 6107, Level 14, State 1, Server MYSERVER, Line 1
Only user processes can be killed.
do was unexpected at this time.
Everywhere I turn I am experiencing new errors and have spent over 2 days on it, and I haven't even got to getting the data yet..
TLDR: Is there any easier way backup MSSQL Db schema and top n rows of data from certain tables?
I want to do a Backup from a Firebird Database. In the documentation I read i should do it with:
/opt/firebird/bin/nbackup -B 0 /home/server/daten/DB.fdb DB19082014.nbk
This work. I have a file DB19082014.nbk. This I copy to my computer, and now I would Restore it with:
/opt/firebird/bin/nbackup -R /home/server/daten/DB.fdb db19082014.nbk
But now I get the error:
I/O error during "open" operation for file "/home/server/daten/DB.fdb.delta"
Error while trying to open file
null
But I don't have a .delta File. Not on my System and not on the System I do the Backup. Knows anybody where or how I can create a empty .delta File? To get the database work?
Thank You
Solution:
The Backup File must be unlocked with:
nbackup -F <database>
Solution: The Backup File must be unlocked with:
nbackup -F <database>
I have a .sql script and I want to build a database from it. How to do it in sqlcmd? I know it's like:
CREATE DATABASE dbName
GO
But how to specify the .sql script and location to build the database?
Use #Jeremiah Peschka's answer to supply the sqlcmd utility with the script to execute.
As for the location for the newly created database, it can be specified as part of the CREATE DATABASE command:
CREATE DATABASE dbName
ON (
NAME = dbName_dat,
FILENAME = 'D:\path\to\dbName.mdf'
)
LOG ON (
NAME = dbName_log,
FILENAME = 'D:\path\to\dbName.ldf'
)
As you can see from the linked article, you can specify other properties as well, like initial size, maximum size etc.
This is very simple. Just enter following command to run sqlcmd:
sqlcmd -U sa -P password
Then enter:
CREATE DATABASE MYDB
GO
This will create the db. Then enter "quit" to exit.
without a file:
sqlcmd -Q "CREATE DATABASE HelloWorld"
sqlcmd -i C:\path\to\file.sql
More options can be found in SQL Server books online.
use this:
sqlcmd -i "c:\my scripts\my script.sql"
see sqlcmd description at MS for other options
I need to copy a postgres DB from one server to another, but the credentials I have do not have permission to lock the database so a pg_dump fails. I have full read/update/insert rights to the DB in question.
How can I make a copy of this database? I'm not worried about inconsistencies (it is a small database on a dev server, so minimal risks of inconsistencies during the extract)
[edit] Full error:
$ pg_dump --username=bob mydatabase > /tmp/dump.sql
pg_dump: SQL command failed
pg_dump: Error message from server: ERROR: permission denied for relation sl_node
pg_dump: The command was: LOCK TABLE _replication.sl_node IN ACCESS SHARE MODE
ERROR: permission denied for relation sl_node
This is your real problem.
Make sure the user bob has SELECT privilege for _replication.sl_node. Is that by any chance a Slony system table or something?
This worked for me
sudo -u postgres pg_dump -Fc -c db_name > file_name.pgdump
Then create a DB and run pg_restore it:
sudo -u postgres /usr/local/pgsql/bin/pg_restore -U postgres -d db_name -v file_name.pgdump
pg_dump doesn't lock the entire database, it does get an explicit lock on all the tables it is going to dump, though. This lock is taken in "access share mode", which is the same lock level required by a SELECT statement: it's intended just to guard against one of the tables being dropped between it deciding which tables to dump and then getting the data.
So it sounds like your problem might actually be that it is trying to dump a table you don't have permission for? PostgreSQL doesn't have database-level read/update/insert rights, so maybe you're just missing the select privilege from a single table somewhere...
As Frank H. suggested, post the full error message and we'll try to help decode it.
You need SELECT permissions (read) on all database objects to make a dump, not LOCK permissions (whatever that may be). What's the complete error message when you start pg_dump to make a dump?
https://forums.aws.amazon.com/thread.jspa?threadID=151526
this link helped me a lot. It refers to another one,
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.PostGIS
I first change the ownship to rds_superuser, then paste this piece of code,
CREATE FUNCTION exec(text) returns text language plpgsql volatile AS $f$
BEGIN EXECUTE $1; RETURN $1; END; $f$;
SELECT exec('ALTER TABLE ' || quote_ident(s.nspname) || '.' || quote_ident(s.relname) || ' OWNER TO rds_superuser')
FROM (
SELECT nspname, relname
FROM pg_class c JOIN pg_namespace n ON (c.relnamespace = n.oid)
WHERE nspname in ('tiger','topology') AND
relkind IN ('r','S','v') ORDER BY relkind = 'S')
s;
thereafter, I am able to dump my whole database.
Did you run 'pg_dump' with the correct -U (user who owns that db) ? If yes, then just like other poster said, check the permissions.
HTH
This worked for me -d dbname -n schemaname
pg_dump -v -Fc -h <host> -U <username> -p -d <db_name> -n <schema_name> > file_name.pgdump
default schema is public