How to connect to Azure SQL database remotely (SharePoint 2013 BI)

Hi,
I am new to using Azure VM's and I am looking for advice. I have created and can connect to an Azure VM with a SQL Server 2012 installed on it (includes SSAS and SSRS). I connect to the VM using Microsoft Remote Desktop Connection.
The problem I am having is connecting to the Azure database from a SharePoint BI site. Are there any good videos or websites that demonstrate how to setup an Azure VM so a user can access a database remotely.
I hope you can help.
ATaylor

Hello,
To connect to the SQL Server Database from another computer, you must know the Domain Name System (DNS) name of the Azure virtual machine. For example: DNSName,portnumber such as SQLVM.cloudapp.net,57500.
(Note: The port number is the public endpoint port which you can configure in the management portal for TCP communication with SQL Server on Azure VM.)
As for datasource credentials, you can use a SQL Server authentication login: create a SQL Server login with password on the SQL Server instance.
Reference:
Complete Configuration steps to connect to the virtual machine Using SQL Server Management Studio on another computer
Regards,
Fanny Liu
Fanny Liu
TechNet Community Support

Similar Messages

Cannot Connect to Azure SQL Database in Visual Studio 2013

Beyond Frustrated here.
I am trying to connect to an Azure SQL database - it has been created, has tables etc. I am trying to create a new Data Connection from within Visual Studio 2013, latest release for VS and Azure. I continue to receive the following error:
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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 53)
I have ensured that TCP is allowed and above Named Pipes in the Configuration Manager. The associated IP address is allowed on Azure Firewall. Certificate has been added to VS etc. But still no connection. I can see the database in the Azure section in Server
Explorer, but cannot add a Data Connection. What is equally as frustrating is I have a MacBook Pro running Win 7 sitting right next to my office computer and it can access Azure fine, not problems.
If anyone has any other ideas on how I might be able to solve this I would love to hear them. Thanks in advance.
Jeff

Hi,
The 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 53) "
The issue comes up mainly because the application is not able to connect to the server.
To resolve this issue, try the following steps (in that order):
Make sure that TCP IP is enabled as a client protocol on the application server. For more information on how to do this, see
Configure client protocols. On application servers where you do not have SQL Server tools installed, you can check this by running cliconfg.exe (SQL Server Client Network Utility).
2. Check the application’s connection string to make sure that it is correctly configured. For example, make sure that the connection string specifies the correct port (1433) and the fully qualified server name.
Note You can follow these steps to obtain the connection string from the Azure Management Portal:
                      Log on to the
Azure Management Portal.
                      In the left navigation pane, click
SQL Databases.
                      Select your Azure SQL Database server.
                      Click
Dashboard.
                      On the right side, go to the
quick glance section, and then click Show connection strings.
Test the connectivity between the application server and the Azure SQL database by using a UDL file, ping, and telnet. For more information about how to do this, see
Azure SQL Database connectivity troubleshooting guide and
Troubleshooting SQL Server connectivity issues.
Note As a troubleshooting step, you can also try to test the connectivity on a different client computer.
Try increasing the connection timeout. Microsoft recommends using a connection timeout of at least 30 seconds.
As a best practice ensure retry logic is in place. For more information about the retry logic, see
Azure SQL Database best practices to prevent request denials or connection termination.
      If these steps do not resolve your problem, follow the below steps to collect more data and contact support:
   If your application is a cloud service, enable the logging. This step returns a UTC time stamp of the failure. Additionally, SQL Azure returns the tracing ID.
Microsoft Customer Support Services can use this information.
   For more information about how to enable the logging, see
how to enable diagnostic logging for Azure Web sites and Developing SQL Database Applications section in
Azure SQL Database Development Considerations.
  Check out
the list of best practices for Connecting to Windows Azure SQL Database.
Regards,
Shirisha Paderu.

Can No Longer Connect to Azure SQL Databases

As of this morning, I am no longer to connect to any of my Azure SQL databases by any (apparent) means. I checked the configuration in the azure portal and my IP address is listed as an allowed IP, however:
I am unable to connect via SQL Server Management Studio
My request times out when attempting to visit https://{server_name}.database.windows.net
What might have caused this?

Hi ,
Thanks for posting here.
To resolve the issue you can try the following steps (in that order):
                Check the application’s connection string to make sure that it is correctly configured. For example, make sure that the connection string specifies the correct port
(1433) and the fully qualified server name.
Note You can follow these steps to obtain the connection string from the Azure Management Portal:
                      Log on to the
Azure Management Portal.
                      In the left navigation pane, click
SQL Databases.
                      Select your Azure SQL Database server.
                      Click
Dashboard.
                      On the right side, go to the
quick glance section, and then click Show connection strings.
                Make sure that TCP IP is enabled as a client protocol on the application server. For more information on how to do this, see
Configure client protocols. On application servers where you do not have SQL Server tools installed, you can check this by running cliconfg.exe (SQL Server Client Network Utility).
                Test the connectivity between the application server and the Azure SQL database by using a UDL file, ping, and telnet. For more information about how to do this,
see
Azure SQL Database connectivity troubleshooting guide and
Troubleshooting SQL Server connectivity issues.
Note As a troubleshooting step, you can also try to test the connectivity on a different client computer.
                Try increasing the connection
timeout. Microsoft recommends using a connection timeout of at least 30 seconds.
                As a best practice ensure retry logic is in place. For more information about the retry logic, see
Azure SQL Database best practices to prevent request denials or connection termination.
              If the previous steps do not resolve your problem, follow these steps to collect more data and contact support:
                  If your application is a cloud service, enable the logging. This step returns a UTC time stamp of the failure. Additionally, SQL Azure returns the tracing
ID.
Microsoft Customer Support Services can use this information.
                  For more information about how to enable the logging, see
how to enable diagnostic logging for Azure Web sites and Developing SQL Database Applications section in
Azure SQL Database Development Considerations.
Please write back with the exact Error message/ Error Code if this doesn't help.
Regards,
Shirisha Paderu.

Consistently getting "The wait operation timed out" when connecting to Azure SQL Database from a virtual instance...

I have a web app that is backed by a an Azure SQL Database. The problem is that I had multiple issues when connecting to the database mainly when trying to establish a connection, or timeouts. This is the log I just encountered when trying to use the web
app.
[Win32Exception (0x80004005): The wait operation timed out]
[SqlException (0x80131904): Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server was - [Pre-Login] initialization=21970; handshake=1; ]
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +671
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +116
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +1012
System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +6712291
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +152
System.Data.SqlClient.SqlConnection.Open() +229
System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure) +102

Hi Affar2k,
According to your description, we need to verify if there is no network issue and the Sqlclient version is older than .NET 4.5. You can try to connect to the Windows Azure SQL database via SSMS and check if it can run well. When you
connect to the SQL Azure database via ADO.NET, you need to verify that the server name and passwords are right in the connection string.
For more information, you can review the following article about how to connect to Windows Azure SQL Database using ADO.NET.
http://msdn.microsoft.com/en-us/library/windowsazure/ee336243.aspx
Thanks,
Sofiya Li
Sofiya Li
TechNet Community Support

Connecting to Azure SQL database in Access 2010

I've recently purchased a new computer and I had an OBDC connection set up to link to a sql database in azure through access. I am trying to set it up on my new computer but I'm unable to define the specific database. I'm able to make the connection but
it only allows me into the master database. I've added my IP address in the configure servers but still can't get things to work. Any help would be greatly appreciated.
thanks
Lynn

Hi,
The following guidelines apply to SQL Database connections using ODBC:
• When using SQL Server Native Client from SQL Server 2008 R2 or SQL Server 2008, the connection string must include the server name as part of the user name (user@server).
• You must use TCP/IP as the protocol when connecting to an Azure SQL Database.
• You cannot create a table in the master database, so therefore you must create a user database to create a table.
• You cannot execute a use database command to switch to your user database. You must disconnect and connect directly to the user database.
• You must have a primary key or clustered index on your table to be able to insert data.
Ref:
https://msdn.microsoft.com/en-us/library/azure/hh974312.aspx?f=255&MSPPError=-2147217396
http://blogs.office.com/2010/06/07/access-2010-and-sql-azure/
https://support.microsoft.com/en-us/kb/2028911/
Hope this helps you.
Girish Prajwal

How to migrate files from different databases to sharepoint 2013?

Hello everyone,
I need to migrate files of various formats from two databases to SharePoint 2013 ? How should I pursue? Please explain..
Scenario : Two different databases on different systems have loads of files. I need to migrate them to SharePoint?
Any suggestions/ Answers

Hi,
You need to copy the database into your network shared folder or SharePoint Server where you wanted to attach this content DB to your newly created web application.
Hope and Afraid,
Same Domain has been used. I mean if you move the content db from the server 1 which using the AD1 for authenticate the users,
So your new server 2 and web application must have configured to authenticate the AD 1 users.Otherwise user not found exception will be thrown.
If not still you can change the site collection administrator for the site which is migrated from the server 1.
Murugesa Pandian., SharePoint 2010 | MCPD | MCTS |Configure

Applet connecting to MS SQL Database (Remote DataSourse)

Hello,
I started by building my interface to a Database within an Application. I am not to the point where I am ready to make it an applet but want to get some tips when the time comes very soon.
First of all what security issues do I have to deal with to let the applet connect to the database?
Second I currently created a local Datasource via ODBC call JavaDB and linked it to my MS SQL Database.
QUESTION
How do I link to the with a remote Datasource so that the local machine does not have to worry about the datasource.
Lastly can I use the "sun.jdbc.odbc.JdbcOdbcDriver" in an applet. I sure hope so...
Then the part of my code that connected to the database was this:
private void initDB(){
String url = "jdbc:ODBC:JavaDB";
Connection con;
String query = "select * from COFFEES";
Statement stmt;
try {
//Class.forName("myDriver.ClassName");
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
try {
con = DriverManager.getConnection(url, DBADM, DBPWD);
stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(query);
ResultSetMetaData rsmd = rs.getMetaData();
System.out.println("");
int numberOfColumns = rsmd.getColumnCount();
for (int i = 1; i <= numberOfColumns; i++) {
 if (i > 1) System.out.print(", ");
 String columnName = rsmd.getColumnName(i);
 System.out.print(columnName);
System.out.println("");
while (rs.next()) {
 for (int i = 1; i <= numberOfColumns; i++) {
 if (i > 1) System.out.print(", ");
 String columnValue = rs.getString(i);
 System.out.print(columnValue);
 System.out.println("");
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.print("SQLException: ");
System.err.println(ex.getMessage());
Thanks,
Kenny

Kenny,
As no one has replied, I've managed to implement a database that uses applets.
Firstly, one needs to obtain a JSP server (apache tomcat is free and can be configured into a IIS 4 server).
Secondly, write all the DB connection stuff within a jsp page (ex.) "builders.jsp"
<%@ page import="java.sql.*" %>
<%!
protected String driver="sun.jdbc.odbc.JdbcOdbcDriver";
protected String url="jdbc:odbc:PhotoDBase";
protected String userid=null;
protected String passwd=null;
%>
<html><head><title>Builder Example</title></head><body>
<%!
public static String GET_BUILDER_QUERY =
"SELECT * FROM BuilderInfo WHERE BuilderID =?";
%>
<%
String bID = "24"; //normally this would use
//request.Parameter("bID");
//in order to pull up a specific
//record. In this test case it is
//hard coded to pull only builder #24
%>
<%
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, userid, passwd);
PreparedStatement stmt = conn.prepareStatement(GET_BUILDER_QUERY);
stmt.setString(1, bID);
ResultSet rs = stmt.executeQuery();
rs.next();
 String buildID = rs.getString("BuilderID");
 String bName = rs.getString("BuilderName");
 String bAddress = rs.getString("Address");
 String bCity = rs.getString("City");
 String bState = rs.getString("State");
 String bZip = rs.getString("Zip");
 String bCName = rs.getString("ContactName");
 String bCLast = rs.getString("ContactLast");
 String bPhone = rs.getString("Phone");
 String bFax = rs.getString("Fax");
 String bMobile = rs.getString("Pager/Cell");
rs.close();
stmt.close();
if (bName == null)
 bName = "No Builder";
if (bAddress == null)
 bAddress = "N/A";
if (bCity == null)
 bCity = "N/A";
if (bState == null)
 bState = "N/A";
if (bZip == null)
 bZip = "N/A";
if (bCName == null)
bCName = "N/A";
if (bCLast == null)
 bCLast = "N/A";
if (bPhone == null)
 bPhone = "N/A";
if (bFax == null)
bFax = "N/A";
if (bMobile == null)
bMobile = "N/A";
%>
Builder: <%= bName%> BuilderID #: <%= buildID%>
 Contact: <%= bCName%> <%= bCLast%>
 Address: <%= bAddress%>
 <%= bCity%>, <%= bState%> <%= bZip%>
 Phone: <%= bPhone%>
 Fax: <%= bFax%>
 Mobile: <%= bMobile%>
<applet code="Build.class" width="600" height="300">
<param name=buildID value=<%= buildID%>>
<param name=bName value="<%= bName%>">
<param name=bAddress value="<%= bAddress%>">
<param name=bCity value="<%= bCity%>">
<param name=bState value="<%= bState%>">
<param name=bZip value="<%= bZip%>">
<param name=bCName value="<%= bCName%>">
<param name=bCLast value="<%= bCLast%>">
<param name=bPhone value="<%= bPhone%>">
<param name=bFax value="<%= bFax%>">
<param name=bMobile value="<%= bMobile%>">
</applet>
</body>
</html>
The jsp gets the data from the DB based on the parameter bID which would be passed to it via a search or input page with various error checking included.
The applet then recieves its data via parameters. (Build.class has been shortened here to show you the meat and potatoes of the whole deal)
//<applet code="Build.class" width="600" height="300"></applet>
import java.awt.*;
import java.awt.Event;
import java.applet.Applet;
import java.io.*;
public class Build extends java.applet.Applet {
protected Panel search ;
protected TextField Nametxt ;
protected TextField Loctxt ;
protected TextField Citytxt ;
protected TextField Statetxt ;
protected TextField Ziptxt ;
protected TextField CNametxt ;
protected TextField CLasttxt ;
protected TextField Phonetxt ;
protected TextField Faxtxt ;
protected TextField Celltxt ;
public Build(){
super();
search = new Panel();
Nametxt = new TextField();
Loctxt = new TextField();
Citytxt = new TextField();
Statetxt = new TextField();
Ziptxt = new TextField();
CNametxt = new TextField();
CLasttxt = new TextField();
Phonetxt = new TextField();
Faxtxt = new TextField();
Celltxt = new TextField();}
public void init(){
 BorderLayout bl = new BorderLayout();
 setLayout(bl);
 add(search, "Center");
 setBackground(Color.white);
 String buildID = getParameter("buildID");
 String bName = getParameter("bName");
 String bAddress = getParameter("bAddress");
 String bCity = getParameter("bCity");
 String bState = getParameter("bState");
 String bZip = getParameter("bZip");
 String bCName = getParameter("bCName");
 String bCLast = getParameter("bCLast");
 String bPhone = getParameter("bPhone");
 String bFax = getParameter("bFax");
 String bMobile = getParameter("bMobile");
Nametxt.setText(bName);
Loctxt.setText(bAddress);
Citytxt.setText(bCity);
Statetxt.setText(bState);
Ziptxt.setText(bZip);
CNametxt.setText(bCName);
CLasttxt.setText(bCLast);
Phonetxt.setText(bPhone);
Faxtxt.setText(bFax);
Celltxt.setText(bMobile);
Hope this will aid you in yours and anyone elses endevours.
James <[email protected]>

Yesterday I was able to connect Azure SQL Database - Today I am not

Hello Everyone,
I have problem with establishing connection with Azure SQL Database. I have read many articles here, tried some solutions but none worked.
0. On last Friday everything worked well - today it does not.
1. I added my public IP Address in Azure Management Portal earlier.
2. I tried different types of login-ways: login@nameserver, I used numeric addresses instead of server names, I set TCP connection manually, added encryption in one case either, tried do establish connection with particular database
3. Firewall does not block 1433 out connection
4. My IP address is static
5. I have no error message displayed using Microsoft SQL Server Management Studio - it just hangs.. - no response at all
6. I cannot ping the machine but its name is resolved correctly - maybe it does not respond using echo reply on purpose
7. Status of my database is Active - I am able to connect it and manage via browser and management portal at the moment
8. When I am trying to connect database via Visual Studio - it hangs.. - VS must be stopped manually via task manager
9. My local CloudService has problem with connection to the db either
10. Currently I am not able to deploy my CloudService because when I am trying to Publish it - VS hangs as soon as first Publish dialog window appears. Looks that I am able to deploy cloud service via Management portal only.
I am still trying to dive into the problem but at this moment I would be grateful for any clues.
Regards,

Hi Mekh, hi everyone
PROBLEM SOLVED.
Yestarday I updated Azure Firewall rule and database-level firewall rules (master, my_database). I added special input / output protocols (IP, TCP, UDP) rules to my COMODO firewall (MSSMS could send anything and receive anything using IP, TCP and UDP). Status
of my computer -> database connection was set to ESTABLISHED in netstat output but MSSMS was still unavailable (no response at all - no error message).
I DECIDED TO UNINSTALL COMODO AT ALL and then if it does not work - reinstall local SQL Server, MSSMS and finally Visual Studio. When Comodo was gone - problem was gone either. Now I have connection with my database using MSSMS and I do not have to reinstall
anything more.
Regards,

Connecting to an Azure SQL Database from a Windows C# Form

Hi,
Is it possible to connect to an SQL database in Azure from Visual Studio C# 2010 or 2012? If so how is this done. Is it the same as if you were connecting to SQL Express database with the use of a connection string? Any directions or tutorials would be of
great help!
Thanks!

Hi,
>>Thanks for the reply Paul, That is disappointing. I am trying to get my students to create a C# application that will connect with a database in Azure. Is there another approach besides SQL that I could use?
Using SQL Azure will work fine (see below), if the students are familiar with SQL Server and SQL Databases it will be great for them to see how it works in the cloud. As an alternative you could explore Azure Storage, using Table Storage, Blob Storage or
the new Document Database features.
>>Azure enforces a firewall that prevents direct external access to the database server. You can add a firewall rule allowing external access, but the rules only support connecting from a fixed IP address because you have to specify the numeric IP
from which connection will be allowed.
You can specify ranges here, so you could cover a range of IP addresses. You can even specify 0.0.0.0 to 255.255.255.255 and allow all IP addresses, this could be an option if you don't know where the students will be connecting from, and you are using a
database for the exercise where you don't care too much about the security.
When I have run classes I typically use an IP address range, for example XXX.YYY.ZZZ.0 to XXX.YYY.ZZZ.255 if the students are accessing from the same classroom, and the external IP address may vary. You may find that they all have the same external IP address
if they are on the same internal network.
Also, with many students accessing the same database, you may get throttling if they place a lot of load on it. This is cool, as you can also teach them about transient fault handling and resource throttling :-).
Regards,
Alan
Free e-book: Windows Azure Service Bus Developer Guide.

Can I connect Azure SQL Database from Project Siena ?

Can I connect Azure SQL Database from Project Siena ?
I want to connect Azure SQL Database of Office 365 SharePoint's Access App from Project Siena.
Access App's Database is Azure SQL Database.
and can connect to Excel/PowerBI/etc.
Access App's Database can connect from specific location / any locations.
Access App's Database can allow read-only connection / read-write connection.
I want to create Windows App connected to Access App's Database.
Regards,
Yoshihiro Kawabata.

Hi Yoshihiro,
Could you share more with us about the high level scenario for what you are trying to accomplish offline? We can discuss further at
[email protected]
Once we are done, we will definitely share our findings with the community.
Thanks!

How to connect to a Sql server from Oracle using db link

Hi All,
Does anybody have any idea about how to connect to a sql server from oracle database using db link to syncronize the data? I need to pull the data from Sql server table to Oracle tables and relay messages back to the sql server.
Thank you,
Praveen.

we have 2 products - DG4MSQL and DG4ODBC.
DG4ODBC is for free and requires a 3rd party ODBC driver and it can connect to any 3rd party database as long as you use a suitable ODBC driver
DG4MSQL is more powerfull as it is designed for MS SQL Server databases and it supports many functions it can directly map to SQL Server equivalents - it can also call remote procedures or participtae in distributed transactions. Please be aware DG4MSQL requires a license - it is not for free.
Check out Metalink and you'll find notes how to configure both products.
For a generic overview:
Note.233876.1 Options for Connecting to Foreign Data Stores and Non-Oracle Databases
And the setup notes:
DG4ODBC
Note.561033.1 How to Setup DG4ODBC on 64bit Unix OS (Linux, Solaris, AIX, HP-UX) :
Note.466225.1 How to Setup DG4ODBC (Oracle Database Gateway for ODBC) on Windows 32bit RDBMS.HS-3-2 :
Note.109730.1 How to setup generic connectivity (HSODBC) for 32 bit Windows (Windows NT, Windows 2000, Windows XP, Windows 2003) V817:
Note.466228.1 How to Setup DG4ODBC on Linux x86 32bit
DG4MSQL
Note.466267.1 How to Setup DG4MSQL (Database Gateway for MS SQL Server) on Windows 32bit
Note.562509.1 How to Setup DG4MSQL (Oracle Database Gateway for MS SQL Server) 64bit Unix OS (Linux, Solaris, AIX,HP-UX)
Note.437374.1 How to Setup DG4MSQL (Oracle Database Gateway for MS SQL Server) Release 11 on Linux

Azure SQL Database

Folks,
Not sure if this is the right forum to ask these questions, I am planning to sign up for Azure SQL Database and VMs. I am trying answers to following. Any information is appreciated.
What is the reliability measure of the Azure SQL Database. Is it five 9’s ?
What is the "MAX Worker Threads” performance measure as mentioned here:
http://msdn.microsoft.com/en-us/library/azure/dn741336.aspx
Does “MAX session” correspond to maximum number simultaneous of DB JDBC connections.
Is it tenant based service where multiple tenants are hosted on the Azure database.
What is the architecture of Azure SQL database, Is it centralized on a single server or over a cluster of machines ?
What is the high level architecture of the VMs and SQL DB.
What is the nature, bandwidth and reliability of connectivity between Azure VMs and Azure SQL DB.
Is this network capacity between VMs and SQL DB shared between multiple tenants.
How are the SLAs guaranteed (ensured) and throttled/enforced (to curb over-utilization).
If we horizontly scale Azure VMs to twice number of current VMs, will the temporal locality of the new VMs has lower network performance in terms of latency or bandwidth than the existing VMs.
Are there any per Azure VM limits on access to Azure SQL DB.
If for some reason SQL DB crashes experiences, Is the Data recoverable.
Can the Azure SQL DB be backed up in Azure Cloud/ or Amazon S3
Thanks,
Ajay

Hi Ajay,
These msdn forums are the actually the best place to ask questions.
I guess you have some scenario in back of your mind that makes you ask these questions, if you can share that with us we may better answer your questions instead of giving you information that may not be most usable for you, regardless here it goes.
I will do my best to answer all your questions
What is the reliability measure of the Azure SQL Database. Is it five 9’s ?
VS: It's 4 nines (99.99) The 99.99% uptime SLA applies to Basic, Standard, and Premium service tiers only.
SQL Database Web and Business Editions have an established uptime SLA of 99.9%.
http://azure.microsoft.com/en-us/services/sql-database/
What is the "MAX Worker Threads” performance measure as mentioned here:
http://msdn.microsoft.com/en-us/library/azure/dn741336.aspx
VS: SQL Database governs the limit on the number of concurrent worker threads (requests) to a database.
Any database with more than the allowed limit of concurrent requests will receive error 10928, and further requests on this database can be denied.
http://msdn.microsoft.com/en-us/library/azure/dn338078.aspx
Does “MAX session” correspond to maximum number simultaneous of DB JDBC connections.
VS: Yes, SQL Database governs the limit on the number of concurrent sessions that can be established to a database. When concurrent session limit for a database is reached, new connections to the database are denied and user will receive error
code 10928. However, the existing sessions to the database are not terminated.
http://msdn.microsoft.com/en-us/library/azure/dn338078.aspx
Is it tenant based service where multiple tenants are hosted on the Azure database.
VS: Yes and No, Yes because its offered as SAAS, yes multiple tenants are hosted on Azure DB, but they are isolated and also depends on the tier you choose. SQL Azure is designed for Massive scaling, so if you were worried about slowness due
to multi tenant hosting, trust me that should last thing to be worried about.
No, because you can choose to go all the way to premium (now that does not mean you are the only db on the server but its super high performing database out there)
What is the architecture of Azure SQL database, Is it centralized on a single server or over a cluster of machines ?
VS: Its hosted in Microsoft Datacenters and offered as a service, although we can go in detail of architecture of SQL Azure but for this set of questions its irrelevant. Performance is massive on SQL Azure, it can be scaled out or scaled down
on demand.
What is the high level architecture of the VMs and SQL DB.
VS: Not following your question here, what is meant by architecture of VM?
What is the nature, bandwidth and reliability of connectivity between Azure VMs and Azure SQL DB.
VS: The connectivity in general is great unless you decide to host one service in part of the world and other totally other corner, in that case also I have seen good connectivity between the two given normal latency.
Is this network capacity between VMs and SQL DB shared between multiple tenants.
VS: Not following your question in entirty, do you mean network capacity in terms of GB/Sec? if your vm and sql are in same Data Center its the fastest connectivity you can get out there in market on any cloud or for that matter on prem :)
they apparantely have a faster network in their DC than many giant companies have on prem.
How are the SLAs guaranteed (ensured) and throttled/enforced (to curb over-utilization).
VS: MS have protection against many threats, DOS being one of them, Microsoft has done the best job among all the cloud providers out there to inform thier customers about outages, in a recent summit this was also discussed in detail and suggestions
were made to improve on the portal feature.
Each time an service goes down its reported on the portal on service health page, they are improving on the SLA breach report, at this moment its part of your invoice. I have personally not seen a single breach on my services, I am actively using Azure for
last 5+ years.
If we horizontly scale Azure VMs to twice number of current VMs, will the temporal locality of the new VMs has lower network performance in terms of latency or bandwidth than the existing VMs.
VS: number of VMs have nothing to do with network performance, keep in mind the fabric underneath is build for massive scale, network performance and latency will vary (they keep improving) if you choose to create your VMs in a different DCs
then you would come across some latency and that's normal.
Are there any per Azure VM limits on access to Azure SQL DB.
VS: these are not per VM limits, they are driven by MAx_THREAD and MAX_SESSION, please refer to the link above in the question for Max worker thread
If for some reason SQL DB crashes experiences, Is the Data recoverable.
VS: I would be careful to answer this, if you choose to use SQL Azure (which is offered as SAAS) then yes MS takes care of data replication to ensure SLA. if you choose to host your own SQL DB on your VM in Azure, MS is not responsible for
the data recovery, you will have to take care of it (because now you are not talking about PAAS, instead you are going for IAAS)
Can the Azure SQL DB be backed up in Azure Cloud/ or Amazon S3
VS: Ofcourse, I am not very familiar with Amazon S3 but i see no reason why it can't be done.
hope this helps
Please mark as answered if it helped
Vishal Narayan Saxena http://twitter.com/vishalishere http://www.ogleogle.com/vishal/

Concerns over switching between new Azure SQL Database Service Tiers

Windows Azure's new SQL Database
service tier pricing model will be put into effect in less than 12 months. We currently have SQL Databases on the Business and Web Edition pricing models.
We recently asked Azure Support a number of questions around the scalability and ability to switch between these tiers. The responses so far have been far from encouraging:
Q: If we exceed the criteria for a given tier (see http://msdn.microsoft.com/library/azure/dn741336.aspx), how will Azure respond? For example, if we are on the S1 service tier, and we exceed the maximum number of sessions (200), will any new sessions be
blocked until we manually increase the service tier? Or will you automatically move (and bill) us to/for the next tier level?
A: If you exceed the criteria of the existing tier, you shall be notified of performance issue like throttling. Users may experience slowness and blocking. There will not be any automatic upgrade.
Q: So to confirm, if we suddenly experience increased, unanticipated client activity overnight due to our web site becoming more popular, you will be blocking any user sessions over and above our performance level limit, until we manually make the transition
to the next level? Is there no “overdraft” facility/scalability in this respect? If this scenario took place within a short space of time, how would we have time to react? Simply blocking new sessions and preventing customers from using our site is not acceptable.
A: I’m sure you understand that SQL Azure database is a shared resource and hence we cap the resources for individual subscription so that a fair service is provided to all the concurrent users. If you feel that you cannot compromise on the user experience
then you shall think of an edition that best suits you. Please refer to the following document to best understand the throttling and its impact. http://social.technet.microsoft.com/wiki/contents/articles/1541.windows-azure-sql-database-connection-management.aspx#Throttling_Limits
Q: Since the changing of the performance level could take several minutes/hours depending on the size of the database, would we experience any downtime/degradation of performance of the database during this period?
A: You might
Q: If downtime/degradation of performance are a possibility whilst we switch service tiers, what do Microsoft recommend we do to safeguard against this? Should we create a second database on a higher tier level and then export the data from the lower tier and
import to the higher, before switching over? How do Microsoft recommend we switch tiers in a production environment with minimal disruption?
A: If you want to upgrade the tiers due to degradation of performance, you will have to create another database on a higher tier and import the data.
One of our key reasons for moving to Azure hosting was the seamless scalability it appeared to offered. As you can imagine, the responses above are a major concern for our production environment. Does anyone else have any thoughts or concerns in this respect?

James,
I reviewed the support incident you referred to and believe that the questions you asked may have been answered later in the interaction you had with the engineer. For the benefit of others viewing this forum I want to reiterate the answers
to your key questions here as well.
Q. What is the behavior when you reach the limits for the service tier?
A. Each service tier currently has limits on 4 different dimensions (CPU, physical reads, log writes and memory) of resource consumption. When you reach one of the limits, the behavior depends on which resource limit you are hitting, but
generally speaking is consistent with the behavior you would see with a similar hardware limit in the SQL Server box product. For example, when you reach the CPU limit your queries will start showing more SOS_SCHEDULER_YIELD waits,
the memory limit will cause a higher percentage of pages to be read from disk instead of the buffer cache (PAGEIOLATCH_xx waits), etc. This set of limits does not directly abort any of your queries--they just run longer as they
vie for the fixed set of resources made available to your database. In a system where the load greatly exceeds the resources, queries may start to time out.
The new service tiers continue with the Web/Business edition behavior of limiting the number of sessions and concurrent requests (worker threads) you can have. When you exceed these limits you'll get error 10928. Note that
each tier in Basic/Standard/Premium have different values for these limits (http://msdn.microsoft.com/en-us/library/azure/dn369873.aspx) than Web/Business and thus may encounter the errors at different usage levels. The key is choosing the appropriate
service level for the application, and to facilitate that the sys.resource_stats view shows historical usage information so you know where you stand as far as reaching any of the limits. This resource consumption data is also available in the portal.
Q. Is it possible to switch service tiers, and is there any disruption when you do so?
A. Yes, you can change between service tiers as described in this MSDN documentation (http://msdn.microsoft.com/en-us/library/azure/dn369872.aspx). This can be done through the portal, powershell, or REST APIs. [The preview currently has a restriction
where legacy servers don't support switching to Basic/Standard which is expected to be removed in the near future.] The link above outlines the limits on the number of tier changes you can do in a 24 hour period, expected time to perform the change, and
the client disconnect that occurs.
If you have further questions, feel free to re-engage on the support incident or reply to this forum thread.

Can SQL Server SSIS on VM access Azure SQL database?

I have SQL Server BI on Azure VM.
Can SSIS Access Azure SQL database? I need to fetch data.
Kenny_I

Hi,
You an able to do this by running ssis locally and connect Azure SQL. Below link expains this well in detail.
http://beyondrelational.com/modules/2/blogs/84/posts/13234/how-to-use-sql-server-integration-services-ssis-to-migrate-data-from-sql-server-to-sql-azure-paras-d.aspx
Regards,
Santhosh.
www.jijitechnologies.com

Database Initialiser does not create azure sql database

I have a WPF application In the OnStartup in the app.cs I set the Database initializer and forced the context the initialise my database:
Debug.WriteLine("Setting Initializer");
Database.SetInitializer<MyContext>(new MyDatabaseInitializer());
Debug.WriteLine("Declaring new context");
using (MyContext c = new MyContext("MyContext"))
Debug.WriteLine("Force the initialization");
c.Database.Initialize(true);
Debug.WriteLine("Done!");
I created a sql database in the management portal of the azure.
Copied the connectionstring it provided for ADO.net.
But my database is not created.
I also added a firewall rule but nothing happens. I Have no clue what to do.
Can anybody please help me with this?
If you need more information please ask i really have to get this sorted out.
Thanks in advance!

Hi Turkstra,
I have tried to use EF to create Azure SQL database, it works as expect, the database 'jambordbcreate' appear in my SQL Azure, below is the detailed codes.
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CodeFirst
class Program
static void Main(string[] args)
Database.SetInitializer(
new CreateDatabaseIfNotExists<SchContext>());
using (var db = new SchContext("Server=tcp:****.database.windows.net,1433;Database=jambordbcreate;User ID=vote@***;Password=***;Trusted_Connection=False;Encrypt=True;Connection Timeout=30"))
string name = "jambor";
var student=new Student(){Name=name, ID="1a"};
db.Students.Add(student);
db.SaveChanges();
db.Database.Initialize(true);
public class Student
public string ID { get; set; }
public string Name { get; set; }
public string age { get; set; }
public string sex { get; set; }
public class School
public string ID { get; set; }
public string Name { get; set; }
public virtual List<Student> Students { get; set; }
public class SchContext : DbContext
public SchContext(string connection):base(connection)
public DbSet<Student> Students { get; set; }
public DbSet<School> Schools { get; set; }
I suggest you check your SQL connection, after run your code, please refresh azure portal to see whether your database is exist. Hope this give you some help.
Best Regards,
Jambor
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

How to connect to Azure SQL database remotely (SharePoint 2013 BI)

Similar Messages

Maybe you are looking for