How many sql server express instances i can install maximum in single system

Hello Team,
I want to install multiple sql express instances in single machine. My question is that how many instances of sql server express editions i can install in single machine ?
Thanks,
Udaya Kumar
udaya kumar

For practical reasons as much as you like you probably would not exceed in any case 10 instances because after that resource crunch would start but any how you can read Max specification for SQL Server
More accurate answer is "50 instances on a stand-alone server for all SQL Server editions."
https://msdn.microsoft.com/en-us/library/ms143432.aspx
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
My Technet Wiki Article
MVP

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How many sql server can installed in a server

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What MS SQL Server Express version should I install?

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Ranjeet...
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this must actually be:
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Hi,
Adeckert wrote:
>
> I am using Asset Inventory with full MS SQL Server 2005. How many and
> what kind of License tye do I need?
> Only one User license or for every scanned Workstation?
The latter.
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"Multiplexing: Using Middleware, Transaction Servers, and Multitiered
Architecture
Sometimes organizations develop network scenarios that use various forms
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Knowledge is the only thing that I can give you, and still retain, and we are both better off for it.

Hello,
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https://msdn.microsoft.com/en-us/library/cc645993.aspx
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Having issues with getting SQL Server Express to start services and run.

Good afternoon everyone,
I have been working on a 2012 R2 server getting ready to move databases to new hardware. I had SQL Server Express 2008 R2 running on this server with no issues. I was handed another software package that ran SQL Express 2012 and had to for compatibility
reasons. I have had multiple versions run on Server 2012 before with no issues. This time, not so lucky. When the installer from the updated package put on SQL Express 2012 it completed with errors ( error log posted at the end of post) and
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Error 1068 about database handles and error %%945. I know this db has plenty of space and the permissions were added for the Admin account to access both db's. I then uninstalled both versions and tried again, with the same errors listed when
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Matt
Error Log follows, server and domain names have been blacked out with ****.
2015-04-15 11:57:55.16 Server Microsoft SQL Server 2012 (SP1) - 11.0.3128.0 (X64)
Dec 28 2012 20:23:12
Copyright (c) Microsoft Corporation
Express Edition (64-bit) on Windows NT 6.2 <X64> (Build 9200: ) (Hypervisor)
2015-04-15 11:57:55.16 Server (c) Microsoft Corporation.
2015-04-15 11:57:55.16 Server All rights reserved.
2015-04-15 11:57:55.16 Server Server process ID is 4104.
2015-04-15 11:57:55.16 Server System Manufacturer: 'HP', System Model: 'ProLiant ML350p Gen8'.
2015-04-15 11:57:55.16 Server Authentication mode is WINDOWS-ONLY.
2015-04-15 11:57:55.16 Server Logging SQL Server messages in file 'C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\Log\ERRORLOG'.
2015-04-15 11:57:55.17 Server The service account is 'NT AUTHORITY\LOCAL SERVICE'. This is an informational message; no user action is required.
2015-04-15 11:57:55.17 Server Registry startup parameters:
-d C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\DATA\master.mdf
-e C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\Log\ERRORLOG
-l C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\DATA\mastlog.ldf
2015-04-15 11:57:55.17 Server Command Line Startup Parameters:
-s "SQLEXPRESS"
2015-04-15 11:57:55.48 Server SQL Server detected 1 sockets with 6 cores per socket and 12 logical processors per socket, 12 total logical processors; using 8 logical processors based on SQL Server licensing. This is an informational message;
no user action is required.
2015-04-15 11:57:55.48 Server SQL Server is starting at normal priority base (=7). This is an informational message only. No user action is required.
2015-04-15 11:57:55.48 Server Detected 8157 MB of RAM. This is an informational message; no user action is required.
2015-04-15 11:57:55.48 Server Using conventional memory in the memory manager.
2015-04-15 11:57:55.68 Server This instance of SQL Server last reported using a process ID of 7840 at 4/15/2015 11:57:47 AM (local) 4/15/2015 3:57:47 PM (UTC). This is an informational message only; no user action is required.
2015-04-15 11:57:55.68 Server Node configuration: node 0: CPU mask: 0x00000000000000ff:0 Active CPU mask: 0x00000000000000ff:0. This message provides a description of the NUMA configuration for this computer. This is an informational message
only. No user action is required.
2015-04-15 11:57:55.69 Server Using dynamic lock allocation. Initial allocation of 2500 Lock blocks and 5000 Lock Owner blocks per node. This is an informational message only. No user action is required.
2015-04-15 11:57:55.72 Server Software Usage Metrics is disabled.
2015-04-15 11:57:55.73 spid5s Starting up database 'master'.
2015-04-15 11:57:55.79 spid5s 20 transactions rolled forward in database 'master' (1:0). This is an informational message only. No user action is required.
2015-04-15 11:57:55.79 spid5s 0 transactions rolled back in database 'master' (1:0). This is an informational message only. No user action is required.
2015-04-15 11:57:55.80 Server CLR version v4.0.30319 loaded.
2015-04-15 11:57:55.86 spid5s Service Master Key could not be decrypted using one of its encryptions. See sys.key_encryptions for details.
2015-04-15 11:57:55.89 Server Common language runtime (CLR) functionality initialized using CLR version v4.0.30319 from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\.
2015-04-15 11:57:55.91 spid5s SQL Server Audit is starting the audits. This is an informational message. No user action is required.
2015-04-15 11:57:55.91 spid5s SQL Server Audit has started the audits. This is an informational message. No user action is required.
2015-04-15 11:57:55.94 spid5s SQL Trace ID 1 was started by login "sa".
2015-04-15 11:57:55.94 spid5s Server name is '********\SQLEXPRESS'. This is an informational message only. No user action is required.
2015-04-15 11:57:55.96 spid5s Failed to verify Authenticode signature on DLL 'C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\Binn\ftimport.dll'.
2015-04-15 11:57:55.96 spid5s Starting up database 'msdb'.
2015-04-15 11:57:55.96 spid9s Starting up database 'mssqlsystemresource'.
2015-04-15 11:57:55.96 spid5s Error: 17204, Severity: 16, State: 1.
2015-04-15 11:57:55.96 spid5s FCB::Open failed: Could not open file e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\MSDBData.mdf for file number 1. OS error: 3(The system cannot find the path specified.).
2015-04-15 11:57:55.96 spid5s Error: 5120, Severity: 16, State: 101.
2015-04-15 11:57:55.96 spid5s Unable to open the physical file "e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\MSDBData.mdf". Operating system error 3: "3(The system cannot find the path specified.)".
2015-04-15 11:57:55.96 spid5s Error: 17207, Severity: 16, State: 1.
2015-04-15 11:57:55.96 spid5s FileMgr::StartLogFiles: Operating system error 2(The system cannot find the file specified.) occurred while creating or opening file 'e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\MSDBLog.ldf'.
Diagnose and correct the operating system error, and retry the operation.
2015-04-15 11:57:55.96 spid5s File activation failure. The physical file name "e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\MSDBLog.ldf" may be incorrect.
2015-04-15 11:57:55.99 spid9s The resource database build version is 11.00.3000. This is an informational message only. No user action is required.
2015-04-15 11:57:56.02 spid12s A self-generated certificate was successfully loaded for encryption.
2015-04-15 11:57:56.03 spid12s Server is listening on [ 'any' <ipv6> 53345].
2015-04-15 11:57:56.03 spid12s Server is listening on [ 'any' <ipv4> 53345].
2015-04-15 11:57:56.03 spid12s Server local connection provider is ready to accept connection on [ \\.\pipe\SQLLocal\SQLEXPRESS ].
2015-04-15 11:57:56.03 spid12s Server named pipe provider is ready to accept connection on [ \\.\pipe\MSSQL$SQLEXPRESS\sql\query ].
2015-04-15 11:57:56.04 spid12s Dedicated administrator connection support was not started because it is disabled on this edition of SQL Server. If you want to use a dedicated administrator connection, restart SQL Server using the trace flag 7806.
This is an informational message only. No user action is required.
2015-04-15 11:57:56.04 Server SQL Server is attempting to register a Service Principal Name (SPN) for the SQL Server service. Kerberos authentication will not be possible until a SPN is registered for the SQL Server service. This is an informational
message. No user action is required.
2015-04-15 11:57:56.04 Server The SQL Server Network Interface library could not register the Service Principal Name (SPN) [ MSSQLSvc/********.****.local:SQLEXPRESS ] for the SQL Server service. Windows return code: 0xffffffff, state: 53.
Failure to register a SPN might cause integrated authentication to use NTLM instead of Kerberos. This is an informational message. Further action is only required if Kerberos authentication is required by authentication policies and if the SPN has not been
manually registered.
2015-04-15 11:57:56.04 Server The SQL Server Network Interface library could not register the Service Principal Name (SPN) [ MSSQLSvc/********.****.local:53345 ] for the SQL Server service. Windows return code: 0xffffffff, state: 53. Failure
to register a SPN might cause integrated authentication to use NTLM instead of Kerberos. This is an informational message. Further action is only required if Kerberos authentication is required by authentication policies and if the SPN has not been manually
registered.
2015-04-15 11:57:56.09 spid9s Starting up database 'model'.
2015-04-15 11:57:56.10 spid9s Error: 17204, Severity: 16, State: 1.
2015-04-15 11:57:56.10 spid9s FCB::Open failed: Could not open file e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\model.mdf for file number 1. OS error: 3(The system cannot find the path specified.).
2015-04-15 11:57:56.10 spid9s Error: 5120, Severity: 16, State: 101.
2015-04-15 11:57:56.10 spid9s Unable to open the physical file "e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\model.mdf". Operating system error 3: "3(The system cannot find the path specified.)".
2015-04-15 11:57:56.10 spid9s Error: 17207, Severity: 16, State: 1.
2015-04-15 11:57:56.10 spid9s FileMgr::StartLogFiles: Operating system error 2(The system cannot find the file specified.) occurred while creating or opening file 'e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\modellog.ldf'.
Diagnose and correct the operating system error, and retry the operation.
2015-04-15 11:57:56.10 spid9s File activation failure. The physical file name "e:\sql11_main_t.obj.x86release\sql\mkmastr\databases\objfre\i386\modellog.ldf" may be incorrect.
2015-04-15 11:57:56.10 spid9s Error: 945, Severity: 14, State: 2.
2015-04-15 11:57:56.10 spid9s Database 'model' cannot be opened due to inaccessible files or insufficient memory or disk space. See the SQL Server errorlog for details.
2015-04-15 11:57:56.10 spid9s SQL Trace was stopped due to server shutdown. Trace ID = '1'. This is an informational message only; no user action is required.

Hi HMLunger,
Did you install the SQL Server instance successfully? If not, please help to post the summary and detail logs for analysis. By default, the logs can be found in: C:\Program Files\Microsoft SQL Server\110\Setup Bootstrap\Log.
However, if you fail to start SQL Server Express service after successfully installing SQL Server,
you might have to change the paths of the files by running the following scripts from the command prompt. For more details, please review this similar
thread.
NET START MSSQL$SQLEXPRESS /f /T3608
SQLCMD -S .\SQLEXPRESS
ALTER DATABASE model MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
ALTER DATABASE model MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
go
exit;
ALTER DATABASE msdb MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
ALTER DATABASE msdb MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
NET STOP MSSQL$SQLEXPRESS
In addition, you can follow the steps in this KB article to uninstall SQL Server.
Thanks,
Lydia Zhang
Lydia Zhang
TechNet Community Support

Issues using BitLocker in Windows 8 Emedded with 2012 SQL Server Express

I was told that this forum may be able to help me with my issues (see original thread here:
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/8c81fde1-e91b-46eb-8d2f-b79426805ddd/using-sql-server-2012-express-with-bitocker?forum=sqlexpress).
Background:
To summarize, I have an OS that is partitioned into two volumes: C and D.
C drive contains the running software, SQL Server install, and the OS.
D drive is the encrypted partition via BitLocker. The SQL Server files are stored here (logs, backup, and mdf).
Problem:
The software cannot connect to the database stored on the encrypted D volume when BitLocker is turned on. The user account that I use to enable BitLocker is the same SQL Server Service account and has is also part of the Local Admin Group. As soon as I disable
BitLocker, the software works fine and the database connection succeeds. I am currently using the SQL System Admin account to login (SA) and BitLocker is being used with a TPM.
The error I am experiencing when connecting through the software is 'login
failed for user sa'.
Thank you for the suggestions/help.

Hi HMLunger,
Did you install the SQL Server instance successfully? If not, please help to post the summary and detail logs for analysis. By default, the logs can be found in: C:\Program Files\Microsoft SQL Server\110\Setup Bootstrap\Log.
However, if you fail to start SQL Server Express service after successfully installing SQL Server,
you might have to change the paths of the files by running the following scripts from the command prompt. For more details, please review this similar
thread.
NET START MSSQL$SQLEXPRESS /f /T3608
SQLCMD -S .\SQLEXPRESS
ALTER DATABASE model MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
ALTER DATABASE model MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
go
exit;
ALTER DATABASE msdb MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
ALTER DATABASE msdb MODIFY FILE (NAME = logical_name , FILENAME = 'new_path\os_file_name');
NET STOP MSSQL$SQLEXPRESS
In addition, you can follow the steps in this KB article to uninstall SQL Server.
Thanks,
Lydia Zhang
Lydia Zhang
TechNet Community Support

Define ODBC to sql server express 2008 on AZURE VM

Hello,
I defined virtual machine in AZURE with windows server 2008.
I installed SQL SERVER 2008 R2 SP2 Express on the virtual machine.
My goal is to connect from access 2010 to the SQL Server.
I defined endpoint: TCP, public port:57500, private port:1433
I defined an inbound rule in VM firewall: port 1433 opened for the database engine
I defined sql server to allow network login.
I am trying to define ODBC connection but it does not work.
I use the following settings in ODBS form:
Server: VM DNS Name (like: XXX.cloudapp.net),57500
Login ID: login name to SQL Server
Password: password to SQL Server
Can you help me with the correct settings so I will be able to connect to SQL Server?
Thank you for your help

Hello,
Which error message did you received when connect to SQL Server Express instance with OBDC?
Please verify you had did the following configuration:
1.Make sure that TCP/IP is enabled for SQL Server Express in SQL Configuration Manager.
2. Configure SQL Server to listen on the TCP protocol 1433.
3. Configure SQL Server with mixed mode authentication and the login you used is valid.
Reference:http://msdn.microsoft.com/en-us/library/windowsazure/dn133152.aspx
Regards,
Fanny Liu
Fanny Liu
TechNet Community Support

SQL Server Express

I'm farely new at this so any help counts.
Does anybody know how to connect to SQL server Express?
I can add a datasource just fine with SQL servevr 2000 but SQL server Express, I think it uses different port or...I don't know..
thanks

again Microsoft makes things difficult.
follow directions mentioned here:
http://kdc.kapowtech.com/tip/tipWeek65.html
basically, by default the TCP connector is disabled and uses dynamic ports.

Convert Existing MDB database files to SQL Server Express

Hi All,
Can some one please help me on this:
1) What is the current version of SQL Server Express?
2) HOw much SQL Server Express costs (figure about 500 branch servers)
3)Are there any Tools from Microsoft to convert Access 97 directly to SQL Server express, and how much do they cost?
4)Server Hardware requirements to run SQL Server Express - disk size, memory size, security settings, pre-requisite, service needed.
5)Maximum capacity / capabilities of SQL Server Express-max # of simultaneous users,tables,rows,database size.
6)Any installation instruction for SQL Server Express.
Thanks in Advance, Pls help
Thanks
Tony

Hi Tony,
Besides Bruce’s post, firstly, SQL Server Express is a free SQL Server edition,
you can download SQL Server 2014 Express directly from
this link and install it on your computer. For how to install SQL Server 2014 Express, please follow the steps in this similar
blog.
Secondly, for more information about hardware and software requirements for Installing SQL Server 2014 Express, please review this article:
https://msdn.microsoft.com/en-us/library/ms143506.aspx .
Thirdly, SQL Server Express has the following limitations:
• 1 physical processor
• 1 GB of RAM
• 4 GB database size per database in SQL Server 2005 Express and SQL Server 2008 Express , 10 GB database size per database in SQL Server 2008 R2 Express and higher versions of SQL Server Express.
However, there is no limit to the numbers of databases in SQL Server Express. And there is no technical limit to the number of connection that SQL Express can handle.
In addition, there are several methods to convert an Access database to SQL Server, such as using
SQL Server Import and Export Wizard and
SQL Server Migration Assistant for Access, they are both free tools. For more information about convert an Access database to SQL Server, please review this
KB article.
Thanks,
Lydia Zhang
Lydia Zhang
TechNet Community Support

Install MS SQL Server Web Edition on a server with MS SQL Server Express

Hi,
We have a VPS cloud server on which there is an instance of SQL Server Express.
Since we need more resources, I consulted with the hosting provider and they offered us to use SQL Server Web Edition (SPLA Lisence).
My question is - the hosting company claims that it is not possible to keep the SQL Server Express instance along side with the SQL Server Web Edition, and that we must do ugrade and remove the SQL Server Express instance.
This will cause us a long downtime, since there are multiple DBs on the SQL Server Express that we will have to backup, and then restore them one by one on the Web Edition after it is installed.
Is this correct? Can't we install the SQL Server Web Edition Instance and gradually move the DBs to it?
Thanks!

The 50 instances per machine is a setup check rule as opposed to a hardware limitation. From this perspective, there would be no difference between a VM or a physical server.
In the line from the documentation that you referenced, the "stand-alone server" refers not to VM vs. Physical, but instead a stand-alone instance vs. a clustered instance. That is, in a non-clustered environment, you can have up to 50 instances.
In the past when I helped with setup testing and automation, we'd run VMs with 20-ish instances, including instances from 2012, 2008 R2, 2008, and 2005, including multiple editions (Enterprise, Standard, Express, Web, etc.).
One other potential option if your provider cannot support multiple instances is to do an in-place upgrade (edition upgrade) of your existing Express instance. This would retain the current instance and upgrade the existing instance from Express
to Web without the need to migrate databases. Here is more info on the supported version and edition upgrade paths (including Express to Web):
http://technet.microsoft.com/en-us/library/ms143393.aspx
Thanks,
Sam Lester (MSFT)
http://blogs.msdn.com/b/samlester
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SQL Server Express 2012 SP2 installation hangs during extract phase

Greetings!
I am having an issue with trying to silent install SQL Server Express 2012 SP2 (x86).
I have a proprietary installation framework, which is calling the SQL Server Express installer.
The SQL Server Express installer starts extracting files to c:\{some guid}. The folder reaches about 11 mb in size, and then nothing further happens. No activity on the machine, CPU or disk - I have waited up to 15 minutes to verify this. On the normal installation,
the size of this folder is ~650 mb.
Here are the things I've also tested:
- I'm experiencing these symptoms on both Windows 7 and Windows Server 2012 R2 (haven't tested other platforms)
- If I launch exactly the same command from the command prompt, the installation goes through as normal
- If I replace the SQL Server Express 2012 SP2 with SQL Server Express 2012 SP1, and install via our installation framework, the installation goes through as normal
- I have checked and double-checked that our installation framework is started with administrative privileges.
- From my previous search attempts, I have seen issues where the installer would hang or fail when launched from inside an msi, which would result in a log in C:\Program Files (x86)\Microsoft SQL Server\<something something>. These are not the symptoms
I am experiencing. The C:\Program Files (x86)\Microsoft SQL Server\ folder is not even created!
Any suggestions, or places I can look to figure out why it's not proceeding? For now, I have worked around the issue by including SP1 instead of SP2, but ideally I'd like to base my solution on the most recent service pack.

Hello Alberto!
The installation framework does check for this. I'm also certain that these prerequisites are fulfilled.
When the SQL Server process hangs, I can kill the process, copy/paste the exact command that was executed from the installation framework's log files, and execute that command in a command prompt - and then the installation runs as expected.
The installation framework installs SQL Server Express correctly if I use the 2008 R2 SP1 express or the 2012 SP1 Express installer. It's just the SP2 installer that is giving me problems.
The only difference I can think of is that the installation framework is a 32-bit process, which calls the SQL Server installer, while the command prompt is a 64-bit application. I am installing the SQLEXPR_x86_ENU.exe
from http://www.microsoft.com/en-us/download/details.aspx?id=43351, so it should be compatible with my 32 bit environment -
"SQLEXPR_x86 is the same product but supports installation onto both 32-bit and 64-bit (WoW) operating systems"
Tomorrow, I will try:
- Installing on Windows 7 32-bit
- Trying to launch the SQL Server installer from a powershell (x86) prompt, to emulate a 32-bit environment on a 64-bit machine

How many sql server express instances i can install maximum in single system

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