I have to mirror 3 DBs on my sql server instance . I have restored there full backups and log backups on mirror.I have also created endpoints on principal and mirror using default ports 5022 and 5023.
know if i can use the same endpoint for the databases on principal instance ?
Can someone explain what does this mean? This is from http://www.microsoft.com/technet/prodtechnol/sql/2005/dbmirror.mspx
<quote>However, all these techniques for coordinating client redirection with a database mirroring have an important limitation. Database mirroring occurs only at the database level, not the server level. Be careful if your application relies on querying several databases on a server, or uses multi-part object names to query across several databases. When several databases reside on one server, and they are mirrored to a standby server, it is possible that one of several databases might fail over to the standby but the others remain on the original server. In that case, you might need one connection per database that you are querying, so that you do not attempt cross-database queries on a standby server where only one database is a principal and the remaining are mirrors.</quote>
Also I read somewhere that if one mirrored DB fails, all other mirrored DB should also be transferred to the mirror.
For example: Let's say Srv1 (principle) and Srv2 (mirror) and Srv3(witness) are SQL servers with only default instances. The SQL instance has 4 DBs (DB1, DB2, DB3, DB4) and all of them are mirrored to Srv2.
An ASP.NET application has four seperate connection strings like:
objConn1 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB1;Integrated Security=True;
objConn1.connect();
objConn2 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB2;Integrated Security=True;
objConn2.connect();
objConn3 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB3;Integrated Security=True;
objConn3.connect();
objConn4 --> Data Source=Srv1;Failover Partner=Srv2;Initial Catalog=DB4;Integrated Security=True;
objConn4.connect();
If DB2 failsover to Srv2 (mirror), why should all other DBs be failedover?
Thanks
I work for a mid size company with the usual collection of enterprise applications. We are trying to consolidate our SQL environment consisting of around 100 databases none of which are over 100GB with the average database size around 5GB. Recently a large server was purchased as the "Big Daddy" SQL box. Obviously not all the databases will be moved to this one box but within reason a number can.
My question: What is the best way to configure the box?
1 OS & 1 Default Instance - How do we isolate loops memory leaks etc...
1 OS & Multiple instances, ie:Dedicated instance for each application. - How do you allocate CPU & memory, allow for optimum performance without putting others at risk from a rouge process?
Virtualized OS for each application with a default instance - Too much overhead impacts performance?
Future plans include offsite replication, perhaps mirroring with failover.
I'd appreciate anyone else's thoughts ideas? How have you tackled this problem in your environment?
Thanks
Scott
SQL Server 2012: Out of all the databases in the instance we have a requirement in which we need to maintain a high availability for the databases around (128). Our team believed log shipping will apt for this requirement but not sure on it's limitations, how many databases are allowed or supports this log shipping from a single instance.
View 7 Replies View RelatedI've read here at [URL] that with 32 bit it's recommended to only have 10 database mirrors per instance. However, is there a limit for 64 bit SQL Server 2012?
We're having a problem where we have about 300+ databases and now any new db's we add are timing out when it comes to setting up mirroring and am wondering if this is limited by the instance.
I have a single .bak file containing full backups of 20+ databases.
Whats the best way of creating and restoring these database onto an instance on a separate server.
note that this is to migrate the whole instance of sql server onto a newly build server.
I'm building an app that will data stored in multiple databases. I have an endpoint with a single webmethod like so:
CREATE ENDPOINT [Rosters_Endpoint]
AUTHORIZATION [ADHEadministrator]
STATE=STARTED
AS HTTP (PATH=N'/SQL/Rosters', PORTS = (CLEAR), AUTHENTICATION = (DIGEST, NTLM, KERBEROS, INTEGRATED), SITE=N'10.0.1.116', CLEAR_PORT = 8080, COMPRESSION=DISABLED)
FOR SOAP (
WEBMETHOD 'GetACSStudents'( NAME=N'[fadb].[dbo].[GetACSStudents]'
, SCHEMA=DEFAULT
, FORMAT=ALL_RESULTS), BATCHES=DISABLED, WSDL=N'[master].[sys].[sp_http_generate_wsdl_defaultcomplexorsimple]', SESSIONS=DISABLED, SESSION_TIMEOUT=60, DATABASE=N'fadb', NAMESPACE=N'http://tempUri.org/', SCHEMA=STANDARD, CHARACTER_SET=XML)
Each webmethod will be accessed thru a multiview on the page.
It would seem to me that I can describe the webmethods using a fully qualified stored proc name and that wouldn't cause a big problem. But, my question is what does that DATABASE=N'fadb' clause do?
Does anybody see a problem with using a single endpoint to access multiple databases?
Any advice would be greatly appreciated as this is my first web app using this data access method.
Thanks.
Scenario: a stored procedure is executed in database ABC. The procedure includes a MERGE statement with objects in the ABC and DEF databases. A Windows login is executing the procedure. Contained users is not enabled anywhere on the instance. And the user is not orphaned in either database, i.e. the login is associated to the user correctly by-sid in each one.
Of course, the Windows login must be authenticated to access database ABC, and authorized to execute the procedure. That is happening. Most of the time, so is the MERGE statement. But every once in a while we're seeing an odd "Network error code 0x2746 occurred while establishing a connection" message. The procedure has a TRY/CATCH retry loop around the MERGE statement, so it enters that loop. Re-read: the procedure is still running, the network error wasn't about the client connection executing the procedure. So what was it about?
Does that MERGE statement, accessing database DEF, require SQL to authenticate the Windows login again, because it's a different database (even though it's on the same instance, and was already authenticated for ABC)? There shouldn't be any other network activity involved in that phase of the execution. Plus, when the process had been using a SQL Server-authenticated login, this never happened.
But before I go blaming our DCs or network... I need to know, are they in fact involved here, or not? I believe they are, but... never had to care enough before to really know. I'm trying to stave off the "let's switch it back to a SQL login" demand that's sure to come soon, if I can't find an appropriate resolution to this.
Why would I see high CXPACKET waits on a database instance with only one CPU? Since the server only has 1 CPU parallelism can't be used, or are I'm missing something here!?
SQL version
Microsoft SQL Server 2012 - 11.0.5058.0 (X64)
May 14 2014 18:34:29
Copyright (c) Microsoft Corporation
Standard Edition (64-bit) on Windows NT 6.3 <X64> (Build 9600: ) (Hypervisor)
max degree of parallelism is set to 0
HI Guys,
I just need to add multiple catalogs to the same linked server, in Sql Server 2000 or Sql Server 2005. Here i need only to add 3 databases in to a single linked server name.
Thanks In Advance,
Krishna
Hi, I'm planning to develop a project on .NET using Sql server 2005. Just stuck at a point where I need to decide that Should I use 2 or 3 huge databases with a lot of tables and data into it or should i create a lot of databases which would contain small chunks of data. Please let me know which option would give me a better performance. Thanks in advance
God is great. We are not God. But we still can be great.
Hi,
I want to create two databases by restoring from a
single backup file in sql server. I am using 2005-sqlexpress .Is it possible?
Thanx in advance..
I have a backup that contains multiple databases. I am restoring it to a different server. How do I restore each database? Tried to restore under SQL Server Management Studio, but can only restore one of many from the backup (it appears it has only 1 logical file name in the backup) If you can refer me to a web page that would be great. I tried googling the topic but nothing seems to come up.
View 5 Replies View RelatedWould this go a long way towards securing the data?
Database.Store(this)
Database.Delete(this)
Database.Load(this)
Where "this" is a single object mapped to a single stored procedure.
Two parameters are recommended: one to identify user, and one to specify an "action" or different SP.
Why are the user databases that were created in the MSSQLSERVER default instance showing up in the newly created ALPHAONE instance? I'm successfully logging into the alphaone database as it shows as "DASAlphaOne,1xxxPport) at the top of the treeview in ssms. I'm logging in as sa and can edit anything.
The issue here is that all the user databases are shown and can even be edited. I created this instance in an effort to hide databases from whoever is not supposed to see.I was expecting a clean instance with only the system databases..Is there something that can be set to keep each instance's databases private into itself?
I have multiple databases in the server and all my databases have tables: stdVersions, stdChangeLog. The stdVersions table have field called DatabaseVersion which stored the version of the database. The stdChangeLog table have a field called ChangedOn which stored the date of any change made in the database.
I need to write a query/stored procedure/function that will return all the database names, version and the date changed on. The results should look something like this:
DatabaseName DatabaseVersion DateChangedOn
OK5_AAGLASS 5.10.1.2 2015/01/12
OK5_SHOPRITE 5.9.1.6 2015/01/10
OK5_SALDANHA 5.10.1.2 2014/12/23
The results should be ordered by DateChangedOn.
I was told that if I wanted to setup mirroring between multiple instance on the same server that each endpoint had to be different number. Is that true? Or can I use the default 5022 for each instance?
Ex.
Server1Instance1
Use endpoint 5022
Server1Instance2
Use endpoint 5022
VS
Server1Instance1
Use endpoint 5022
Server1Instance2
Use endpoint 5023
Below query tells us if guest user is enabled or disabled in a particular database
SELECT dp.name, CASE perms.class WHEN 0 THEN 'Yes' ELSE 'No' END AS 'Enabled'
FROM sys.database_principals dp
LEFT JOIN (SELECT grantee_principal_id, class FROM sys.database_permissions
WHERE class = 0 AND type = 'CO' AND state = 'G') AS perms
ON dp.principal_id = perms.grantee_principal_id
WHERE dp.name = 'guest';
Do we have a query which can also add the database name to above query output? The output must have columns with data against Name,Enabled,Database name
From what I understand, one SQL Server 2012 instance can host multiple availability groups. That should allow, for example, the following situation - one SQL Server 2012 instance containing three primary replica databases - each one part of a different availability group - and each availability group's secondary replica located on a separate SQL Server 2012 instance.
Can you have three SQL Server 2012 instances, each with one primary replica database and have all three secondary replica databases on one SQL Server 2012 instance? So instead of, as above, going from 1 primary server to 3 secondary servers, this time we're going from 3 primary servers to 1 secondary server? The one secondary server would then contain all three secondary replicas for each of the 3 separate primary replicas.
This would mean that the single server (where all three secondary replicas reside) was part of three separate Windows Server Failover Clustering clusters.
Is this scenario possible?
Scenerio : To keep a very large system running optimally in a VM cluster, Take PR01 and make PR02, PR03, PR04. Distribute the 45 databases and 9T+ of disk across multiple VM guest.
Each PR## is a SQL Server 2012 Enterprise guest on a VM 5.1 cluster.
So instead of PR01 needed 16 core and 128g of memory, each one will have 4 core and 32g of memory. Making VM HA more manageable. (yes, DRS rules will apply). Also provides more HBA paths and distributes i/o over more physical disk on the SAN.
Instead of a connection string having to know PR01.dbo.UserDB01, PR02.dbo.UserDB03, ect the connection would be PRDB.dbo.UserDB01. That way if needed 1) UserDB can be moved to any of the PR## 2) new PR05, PR06 can be added as needed. The end user and processes are not allowed to touch system databases, no PR## will have a user DB called the same name.
There are seperate VM guests on other VM clusters and Citrix servers that need access to PRDB. As things expand and move around, none of the connection strings need to be changed.
I am looking into RadWare and modifing level 7 information, but that is iffy and $$$$$$.
Currently we have an AlwaysOn AG set up with a listener running on port 1433 (underlying instances are on a non default port). Great, no problems there.If we set up a second AG on the same instance with its own specific listener, can this new listener also be configured to use port 1433?
View 2 Replies View RelatedI am currently having publisher(database A), subscriber (database B) and distributor on the same instance for a test environment that is using a uni directional transactional replication. Now I need to setup another unidirectional transactional replication in the same test instance but for a different database. Publisher database is D and subcsirber database is E.
View 4 Replies View RelatedI have a SQL Server 2012 Enterprise Edition install that I am needing to do the following:
- Provide db_owner access to a single user. Have the db_owner privilege apply for the user in all Schemas of the database (this is a generic AD account that is being used for an application).
They are wanting me to do this because they do not want to get so granular as to tell me all of the objects that the user will need specific access to in any of the given Schemas of the database(s).I have 8 databases, and each one has additional Schemas. These are all contained in a Default instance.I am finding that without explicitly applying permissions to the various objects in the Schemas that are not the default Schema for this user, I am a bit stuck.Is there any way to have the db_owner permission apply to the single user for all the Schemas in a given database (without making them a Sysadmin)?
I have 2 tables People and Scores. A person might have 1-5 scores (unknown at time of Query). I would like to query the two tables into a results table and if person does not have a record the score will be zero. Scores also have a test number so you know which score it is. I can get it done with Stored Proc but I have to use Temp tables and then put the temp tables together.
People
Name ID
Tom5
Dick2
Harry3
Larry4
Curly1
Scores
PrimaryKeyPeopleIDScoreTestNumber
12801
[code]....
Results
PrimaryKeyPeopleIdScore1Score2Score3Score4Score5Name
1110090807090Curly
22800000Dick
33909010000Harry
44507090900Larry
559070000Tom
I have resulting rows from a query similar to the following:
The data is coming from a single table that contains only one coverage code column and one coverage code date, but the end user wants the two coverage code types and dates combined into a single row. So the SELECT looks something like this:
SELECT
[Employee ID] = emp.employee_id,
[Coverage Code 1] = enr.coverage_code,
[Coverage Date 1] = enr.coverage_date,
[Coverage Code 2] = case when enr.product_type = 'Accident.Accident'
then enr.coverage_code else NULL end,
[Code] ....
I basically want to merge the like Employee ID's together into a single row like the following:
I know I have done this before and it is probably pretty simple.
I am looking a script which allow me add single coilumn to multiple table of my database.
For Example :-
I am having 4 table
1-Emp , 2-Dept , 3-Location , 4-Salary like this I have around 100 of table
Now I want to run below command to add column Rowchecksum in all table where table name start with Archivebbx keywords.
Alter table EMP
Add Rowchecksum varbinary(8000)
I have a description field in a table which also stores unit of measure in the same column but with some space between them, I need to split these into two different columns.
For Eg:
Description
APPEARANCE UNIT
BDV KV
DENSITY KG/L
I have migrated over 700 databases to another server and now I have to add a specific user to all these databases and sync , looking for script to add this user at once to all these databases.
View 9 Replies View RelatedI need a script that will return the mdf & ldf for multiple databases.
I am currently running...
sp_helpdb 'TestDataname'
...and copying the size of the mdf and ldf into an excel spreadsheet.
How can I get the mdf AND ldf file size for all of the databases in an instance? I need the MDF and LDF seperated and I want the actual size of the file as it appears on the file system.
The following works in query if I specify one student (PlanDetailUID) when running query. If I try to specify multiple students (PlanDetailUID) when running query, I get variable cannot take multiple entries. I assume I would need to replace (variables) in PART 2 with (case statements / using select everywhere) to get around the issue or is there a better way ?
CREATE TABLE #AWP (
[TransDate] [datetime] NULL,
[Description] [varchar](1000) NULL,
[Amount] [float] NULL,
[TotalDueNow] [float] NULL,
[code]....
So I have a problem with combining cells: some of the cells are blank and some of the cells have NULL value.
The combined blank cells return perfect.
But the combined cells in which 1 or more contains NULL will return as NULL
0-4139-00-01OPTIONAL EQUIPMENT 139 - A -
0-4139-00-02NVG EQUIPMENT 139 - A -
0-4139-00-03NVG EQUIPMENT 139 - A -
0139-01-01BRAKE RESERVOIR NULL
A part of the script which i use is:
STUFF((SELECT ', ' + i.ac_type + ' - '
+ i.range_or_single+ ' ' + ' - ' + i.serialno_to
FROM msc_item_effectivity i
inner JOINmsc_item h
ONb.taskcard_verno_i = h.taskcard_verno_i
WHERE h.itemno_i = i.itemno_i
FOR XML PATH('')), 1, 1, '')
i.ac_type = 139
i.range_or_single = A
i.serialno_to = blank or NULL
I want the result of the blank value to be the same as the NULL value.
0139-01-01BRAKE RESERVOIR 139 - A -
how we can replace the multiple values in a single select statement? I have to build the output based on values stored in a table. Please see below the sample input and expected output.
DECLARE @V1 NVARCHAR(100)
SELECT @V1 = 'FirstName: @FN, LastName: @LN, Add1: @A1, Add2: @A2 '
DECLARE @T1 TABLE
(FN VARCHAR(100), LN VARCHAR(100), A1 VARCHAR(100), A2 VARCHAR(100))
[code]....
I have created a trigger that is set off every time a new item has been added to TableA.The trigger then inserts 4 rows into TableB that contains two columns (item, task type).
Each row will have the same item, but with a different task type.ie.
TableA.item, 'Planning'
TableA.item, 'Design'
TableA.item, 'Program'
TableA.item, 'Production'
How can I do this with tSQL using a single select statement?