DB Engine :: Does It Affect Database Integrity Of 2 Databases Have Same Logical Name In Instance
Aug 13, 2015
In our production we have a database by name MyDb.The application team wanted another database by the name MyDbOld which contains the data of Mydb 1 month old. So I created a database MyDbOld in other instance(test) and restored MyDbOld from the one month backup of MyDb in production server. In test instance I backed MyDbOld as MyDbOld.bak...
In the production instance I created a new DB by the name MyDbOld and restored the MyDbOld in the production from the backup of MyDbold.bak in the test instance. Now I have 2 databases in the production instance ie MyDb and 2)MyDbOld. However I find the logical names of both the databases to be the same although the database name and the physical file name to be different.My questions are-:
1) Does it in any manner affect the integrity of the 2 databases if the 2 databases are in the same instance and have the same logical name?
2) Would the dml or data retrieval operations in the 2 databases have any conflict in any manner what so ever?
3) Having a unique database name, and unique file names for the physical files for any database in an instance what is the purpose and significance of additionally having a logical name for a database?
4) Which I could restore a database from the backup of another database in the same instance and at the same time change the logical and physical name of the files to correspond to the new database.
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Aug 3, 2015
Could a simple update statement on a user database ever caused space usage in tempdb? Assuming the update statement fires no triggers and not using any temp tables?
IE:
User DatabaseA
Update TableX
Set col1 = X
Reason I ask is tempdb filled up and the only thing I could see running at that time was the update statement.
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Mar 19, 2008
With the Synonym, I was encouraged to separate my db to several smaller dbs, like base,dynamic,static and security. Now I am trying to use mirroring, I see it may cause problem, I think I need mirror all them to another server. My question is when the server is down, will all db switch to mirror server in the same time? And one can manually set which db is the principal db, but in my case, it will not work if principal server of all four dbs are not the same.
Any thought?
thanks
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Oct 22, 2015
Is it possible to backup/restore sql server databases in a logical way like oracle(exp/imp, expdp,impdp, can export/import tables/users etc)?my case, I have a database which has many data files, in different file groups, I would like to put them together into one file and don't want to shred the database.
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Apr 24, 2000
Hi
Every one
One thing i found out that my 2 databases in server A
Has same logical file name .
I have try to change the name but it is not allowing me to change.
I had refer BOL it says that we should have unique logical file name in a server for each database.
Question i have is does it going harm me i don't know this
if any one u know please suggest me.
Problem I already started getting is I do backup 5 small databases of 10 to 20 mb in one tape only. The 2 database which has same logical file name out
of which one is getting copied & another is not ,All other database it backup
perfecly.
But at the same time in a hard disk if i take backup of this database in a same device it works perfecly so i don't understand where the problem is
If any has any idea please suggest me
Thanks
Nirmal.
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Aug 11, 2000
How I do, in SQL SERVER 7.0, referential integrity (Foreign Key constraints) between tables storaged in differents databases?.
Thank for any help.
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Apr 3, 2011
Is there a query or sp that I can pull all databases on the server along with their logical file names and physical file names?
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Mar 13, 2007
This is the scenario. Is it possible to create views or something (like Oracle DB Links) in a database in Instance 1 which can show data from another database in 2nd Instance ?
I want to do this to create reports.
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Aug 6, 2004
Hi all,
does the shrinking of the database affect the data in the database, such as will it change the data, or deleting the data away?
Thanx
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May 23, 2008
We have more than 2000 tables in the database. Can existence of so many tables affect the performance on SQL SERVER 2005?
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Mar 17, 2001
Im using MS SQL7 as database software ,but now I plan to upgrate SQL7 to SQL2000 . I would like to know that are there any affect on the old database that already use with sql7 after I upgrade to MSSQL2000 ?
Thanks
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Dec 11, 2006
Hello,
I installed SQL 2005 Standard on the same server (2K3) with SQL 2000. My named instance I installed is coming up with "Version 8.00.2039" in the Server Management Studio and will not let me restore a database back-up I made on a 2005 development workstation (I'm assuming it's because it's trying to use the 2000 engine instead of the 2005). Is there a way I can force this instance to use the 2005 engine rather than the 2000?
Thanks,
Steve
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Aug 6, 2010
I have three instances running on my sql 2008 r2 enterprise.I have taken full backup of one database from default instance.I login both the instances thru sa account.Now when I try to restore that backup on another instance it gives me the following error....
TITLE: Microsoft SQL Server Management Studio
Restore failed for Server 'WRCP2F1CWS315TEJA'. (Microsoft.SqlServer.SmoExtended)
System.Data.SqlClient.SqlError: The operating system returned the error '32(The process cannot access the file because it is being used by another process.)' while attempting 'RestoreContainer::ValidateTargetForCreation' on 'C:Program FilesMicrosoft SQL
ServerMSSQL10.MSSQLSERVERMSSQLDATAfcms.mdf'. (Microsoft.SqlServer.Smo)
what can be done to restore bakup in another instance ...
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Jul 28, 2015
why we will go to install named instance as we having default instance already installed. Is there any advantage of named instance.
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Jun 18, 2015
I have installed a default installation of a named instance of a 2008 R2 server and I want to restore a server from the main system and application files. I have a bak file for the latest master and model database and the four application databases and transaction log files. If I restore the master database in single - user mode I will get an error when I start-up the SQL service as the other databases are not attached to the SQL instance.
Is it restore databases and then master/model? best way to restore a SQL server environment?
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Aug 6, 2015
Is there any query/script to find out if SQL Server 2012 instance is set to hidden or not instead of going to SQL Server configuring manager?
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Oct 11, 2007
I recently installed SQL Server and Visual Studio. When I went into SQL Server, I could only connect to a SQL EXPRESS Database engine. I need to access the full Database. I tried disconnecting it, uninstalling/reinstalling. Now I cant connect to the SQL EXPRESS DB Object. There are no SQL Server services running.
Please help.
Thanks
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Nov 24, 2015
I have SQL Server 2014 Enterprise Edition with a number of in-memory tables sitting in my database.When server is restarted it takes many hours to recover my database if there was data in these in-memory tables before shutdown.As a result, I need to clean up in-memory tables every time before server instance shutdown. This is really annoying and requires extra prescriptive actions for support team. Can I have DDL server/database level trigger to catch shutdown event and clean my data before instance goes down?
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Jul 15, 2015
I have SQL 2012 database on availability group environment..Due to lack of space on SQL log partition. I have added to new hard drive configures on RAID1.Moved the ldf files from active partition to newly created partition.SMS change the path for log drive to new driveRestart SQL server services.I cannot connect to databases anymore and I have also lost all setting of Availability group..Error message
Event logs for Application
Log Name: Application
Source: MSSQLSERVER
Date: 16/07/2015 8:32:22 a.m.
Event ID: 5123
Task Category: Server
[code]...
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Jul 22, 2015
I've two instances(Default, Named[dynamicsFINANCE]) running on SQL server 2014. However, when I try to connect to named instance say (dynamics FINANCE) using SQL authentication from local SSMS, I get below error message.A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)I assigned a static port number to the named instance [dynamicsFINANCE] 1450. I also setup the firewall rule to allow access to Port 1450.
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May 8, 2013
We have 3x instances of SQL Server 2012 installed on a single remote server - there's the default MSSQLSERVER instance, then INSTANCE01 and INSTANCE02. I can remotely connect to the default MSSQLSERVER instance through SSMS, but I cannot connect to either of the additional named instances (INSTANCE01 or INSTANCE02).
For example, if I try to connect to "sql.domain.com", I can successfully access the default instance on the remote server. If I try to connect to "sql.domain.comINSTANCE01", I get an error stating
"A network-related or instance-specific error occurred while establishing a connection to SQL Server".
However - if I try to connect to "sql.domain.comINSTANCE01, 49301" (where 49301 is the TCP Port for the TCP/IP Protocol for this SQL Server instance), I am able to successfully connect.
This leads me to think that there's a communication issue with the SQL Server Browser service running on the remote SQL Server and my workstation.
The following items have been verified:
SQL Server Browser is running on the remote SQL ServerWindows Firewall has been disabled on the SQL ServerTCP Ports 1433, 1434, 1954, and 49301 have been opened up on the remote destination's firewallUDP Port 1434 has been opened up on the remote destination's firewall.
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Jun 21, 2015
I have TWO named SQL Server instances (on the same machine) and I need to know the port of each of them, how can I do that? Is it write to check the following:
Which one to take: "TCP Dynamic Ports" or "TCP Port"? and what is the difference between them anyways?
Can the two instances (or more) on the same machine use the same port?!
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Oct 22, 2015
We are currently looking at consolidating 10 servers into one cluster server.
Some servers may be busier than others. Is there any reason to split them up and give the busy databases specific CPUs or is it always better to have them on one instance?
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Jul 7, 2010
Since installing the client tools for SQL 08 R2 on my laptop, I am running into the following error when trying to open a step within a SQL job:
Microsoft SQL Server Management Studio
Creating an instance of the COM component with CLSID {AA40D1D6-CAEF-4A56-B9BB-D0D3DC976BA2} from the IClassFactory failed due to the following error: c001f011. (Microsoft.SqlServer.ManagedDTS)
ADDITIONAL INFORMATION:
Creating an instance of the COM component with CLSID {AA40D1D6-CAEF-4A56-B9BB-D0D3DC976BA2} from the IClassFactory failed due to the following error: c001f011. (Microsoft.SqlServer.ManagedDTS)
Is there a patch out for this?
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Sep 3, 2015
I get "there was an unknown error applying the filestream settings("0x800710dc ") configuring my sql clustered instance with configuration manager. Not clear for me what I have to set for "Windows shared name".. Is it just an aliases or do I have to give the name of a shared disk ??
Get the same issue with SQL2012 and SQL2014..
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Jun 25, 2014
I've a fresh installation of SQL Server 2014 Enterprise on Windows Server 2012R2. I've setup de Windows Server Failover Cluster and the validation test has been successfully passed. I use mountpoint so I've disk M: that is the host drive for mounted volume m:Isql2014A that is the base folder for mounted volume
On that folder I've 5 mountpoint:
1) m:isql2014a empdbdata
2) m:isql2014a empdblog
3) m:isql2014auserdata
4) m:isql2014auserlog
5) m:isql2014auserlog
into these 5 mountpoint I've placed the SQL Server files.
After the installation of the first FCI I've re-run the cluster validation wizard and again it has passed successfully. When I try to failover the instance from one node to the other I have 2 problem:
1) every time I do failover, some disks fail to come online for a while and then succeed :
Cluster resource 'CLD - IstA - TempDB Data' of type 'Physical Disk' in clustered role 'SQL Server (ISQL2014A)' failed. The error code was '0xaa' ('The requested resource is in use.').
2) sometimes the SQL Server service fails to start, in the error log I see that the master database is not accessible. The master database in into the m:isql2014abinbackup.
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Jun 9, 2015
We have a 2 servers with 2 default instances,
Environment- SQL server 2012 SP2 | Windows Server 2008 R2
1server:
hostname-serverA , Instance-serverA and port-2040 Ip-192.164.1.1
2server:
hostname-serverB , Instance-serverB and port-2040 Ip-192.164.1.2
If i do a SSMS connection-the possible connections strings which can be used to connect to Instance "serverB" should be,
a.serverBserverB
b.serverB,2040
c.192.164.1.2,2040
Note: but even the connection string "serverBserverA,2040" also connects to Instance "serverB", when i try to connect from SSMS, In SSMS it shows the wrong instance name like, "serverBserverB", but it actually connects to Instance "serverA"
i.what is the reason behind this?
ii.Is there any way to avoid this connection, by performing server property changes, if any ?
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Aug 6, 2015
I am new to SQL Server 2012 clustering.I added a new instance to one of the two nodes.when I try to move it to the other node it fails.Do I need to install it on both?If so, what options do you install on the second node?
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Apr 23, 2015
One server, a part of a 2 node always on cluster, had problems, I had to restart.
I'm getting this error for example now:
Error: 49910, Severity: 10, State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing, ETW, notifications etc are skipped.
+
SQL Server was unable to run a new system task, either because there is insufficient memory or the number of configured sessions exceeds the maximum allowed in the server. Verify that the server has adequate memory. Use sp_configure with option 'user connections' to check the maximum number of user connections allowed. Use sys.dm_exec_sessions to check the current number of sessions, including user processes.
Now, on the instance I have activated maximum servere memory, my question; Is it possible to adjust this setting without starting the service?
Some parameter for example?
The server itself have enough memory.
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Feb 12, 2008
Using SQL Server Express 2005, I have two databases. AppDB - The main application database.GeoDB - A somewhat static ZIP code / states / other geographic stuff databaseI need to have some foreign key columns in tables in AppDB reference columns in the GeoDB database tables. Eventually other application database besides AppDB will be doing the same thing in our infrastructure. After googling and reading for days, here is what I
think I know:You cannot create foreign keys that reference tables in another database in SQL Server.You
cannot create foreign keys that reference columns in a view, and you definitely cannot make an index on a view that has base tables in another database.You can create a trigger that references tables in another database, but this can be flaky? (nested/recursive trigger problem).SQLServer
2005 supports multiple schemas within the same database. Maybe I should logically separate my databases this way? Seems like it would be a tough solution to manage since I already have some databases live in production that will eventually use this 'static' GeoDB. Also, seems like it
wouldn't be as portable as keeping the GeoDB info in its own database,
but maybe I'm being too software engineer-ish here - afraid of low
cohesion, high coupling.I will greatly appreciate any advice I can get, or any more options I am missing. Thanks,Adam Nofsingerucnmedia.com
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Oct 27, 2015
connecting to a SQL Server Instance. I have a SQL server DB on a server having an Instance not running on the default port. Let's say ServerAInstanceA has the services exposed on Port 12345. When I'm trying to connect to ServerAInstanceA without specifying the port number, while I can connect from one client machine (ClientA), I am unable to connect from a different client machine (ClientB).On a side note, when I provide the port number, I can connect both from clients A and B. My question is, when I do not provide the port number, why is one client machine able to connect while the other isn't?
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Jun 26, 2015
I am using alwayson on my SQL 2012 databases. I am using ola hallengren scripts for backing up databases. Full & diff db backups work fine, but the log is not getting backed up. The tran log backup job doesn't error out too. Trying to figure out what I may be missing?
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Sep 11, 2015
I need to create an alert for sending email alerts when schema changed in any databases.At my side: Server 2012 R2 enterprise.37 databases are there.
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