Load on SQL Database Is gonna be increased!!!!

Hi ,
Could you please let me know what are the parameters that has to be considered if load on database is going to be increased by 50 % on a day.
I am working in shop,related to transactional system .and business is expected to hit our site by 50% on one day.Please let me know database parameters that has to be considered to make system perform well so that I can plan in advance .
Please let me know ur thoughts on this .

This is going to be very general question.
The load testing is somewhat dependent on various factor Memory,CPU Usage, I/O, Transaction rates Also, it depends on internal design of your database. Some of the important metrics discussed below
http://thomaslarock.com/2012/05/are-you-using-the-right-sql-server-performance-metrics/
http://gallery.technet.microsoft.com/SQL-Find-CPUMemoryConnectio-badbf877
--Prashanth

Similar Messages

Is it possible to load SWF files from an SQL database?

Hi all, I am very new to flash (I am primarily a C'# developer!) and I have been asked to investigate the possibility of doing the following;
Create an application that allows swf files to be uploaded and stored inside of a SQL database as binary data (Why a database is a long story!)
Allow this binary data to be extracted via a http request to be dynamically loaded inside of a web page.
Now the first part was easy. I have all of my swf's uploaded and stored inside of the database. I have code that can make a request for the binary and write it to the response, so far so good. Now this is where I am stuck.
I thought I could dynamically load the swf binary data by creating a very basic swf that simply contains a movie clip holder and for now a simple loadMovie statement. My idea being that I can could provide a url for the loadMovie statement that returns the swf binary data. This is where I have ground to a halt.
I can see the call being made from the swf, I can see the data being returned but I cannot get it to render. I remember seeing an article some time agao where someone stated that they had used this method with success but I cannot find now. Has anyone ever done anything like? Is it even possible? Am I missing something simple?
I have tried to return both the raw binary data and also used response.write but to no avail. Can anyone help?

You are possibly trying to load AS3 swf into an AS2 Container at least the use of loadMovie() points in that direction. Be sure to use AS3 and target at least Flash 9 in your Loader/Main.swf. Also the AS3 concept of how to load swfs differs a lot from the old concept.
Look into the docu:
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display/Loader.ht ml
But the biggest Problem seems to me -what you mentioned- that Loader needs a (defined) URLRepuest and since your swf files have no "real" URL and you surely don`t want to let the user directly write to your server, a workaround would be to write the BinaryStream with AIR-functionality to a local installlation directory and load it then from there.

Load image from SQL database with ASP?

Hello,
Does anyone know a tutorial where you can load an image from
a SQL database ?
I would like to show this image in Flash, but i don't know
how to load in from a SQL database using ASP.
Regards,
Micheal

Flash cannot load images from an SQL database.
Flash can load JPEG, PNG, GIF, SWF, MP3, and FLV files.
An SQL database can be used to store the file names and their
location. ASP can retrieve that data from the SQL and return to
Flash to load the above file formats.
For Flash to do the communication with ASP you need to
determine if you are using URL Encoded or XML data structures.
For URL Encoded data you look at
LoadVars.sendAndLoad
For XML Encoded data you look at
XML.sendAndLoad
Then in their onLoad methods you use
MovieClip.loadMovie
to load JPEG, GIF, PNG and SWF;
Sound.loadSound
for MP3,
NetConnection.connect,
Video.attachVideo and NetStream.play for FLV.
For the ASP side the work with the database has nothing to do
with Flash other than using any search variable sent from Flash
with LoadVars.sendAndLoad or XML.sendAndLoad. In other words it
could be an HTML form sending the same variable and calling the
same ASP script. Same with returning values except with Flash only
URL Encoded or XML data structures are sent back and not
HTML.

Load JPEG as an ASPx page (from SQL database)

We are trying to load JPEG images into the Flash player from
an SQL database. But figuring out how to do it has us stumped.
We are already displaying the images on a web page by
setting the source of the image as a page. We use a separate file
for retrieving an image, for example to display an image on a web
page that is stored in the SQL database with an ID 1297 in the DB,
use:
<img src="/image.aspx?id=1297">
Does anyone have any ideas how we might use a similar
technique to load the jpeg images into the flash player? Or any
other suggestions that will allow us to accomplish our object of
viewing many thumbnail jpeg images in the Flash player?
Thanks for any suggestions,
Steve

Hmm, maybe I'm naive, but what's the problem with
loadMovie("/image.aspx?id=1297","container_mc");
or even using the MovieClipLoader class with that url
string?

How to load my tree with data from SQL database????

Hello friends
May i know how i can load my tree with my database??
i have 3 different tables and i need them to be the 3 main nodes of my tree
They are
1.fiche
2.amis and
3.famille
and in each of these nodes need to load the 3 databases
thank u in advance

Heres my program so i loaded my vector ,
Now how can i integrate the coding u gave me, and where ??
Is it where i put the quetion mark?
if so
can you tell me how?? because i didnt understood well the codings you gave me as im nt at all familiar with this
Thank you in advance
public class carnetf extends javax.swing.JFrame {
   DefaultMutableTreeNode root =null;
    public carnetf() {
       root= new DefaultMutableTreeNode("Carnet");
        DefaultMutableTreeNode tnFiche=new DefaultMutableTreeNode("Fiche");
       root.add( tnFiche);
        DefaultMutableTreeNode tnAmis=new DefaultMutableTreeNode("Amis");
        root.add( tnAmis);
        DefaultMutableTreeNode tnFamille=new DefaultMutableTreeNode("Famille");
        root.add( tnFamille);
       initComponents();
    public Vector vecfiche() {
        Vector v = new Vector();
        Connection connection = null;
        try
            Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
            DriverManager.registerDriver(new com.microsoft.jdbc.sqlserver.SQLServerDriver());;
        catch (Exception E)
            System.out.println("Unable to load driver.");
            System.out.println(E.getMessage());
            E.printStackTrace();
            return null;
        try
            connection = DriverManager.getConnection( "jdbc:microsoft:sqlserver://localhost:1433;user=sa;password=sa;DatabaseName=carnet");
        catch (Exception E)
            System.out.println("Unable to connect.");
            System.out.println(E.getMessage());
            return null;
        try
            Statement Stmt = connection.createStatement();
            if(jRadioButton1.isSelected()==true)
                String Query = "SELECT * FROM fiche";
            ResultSet RS= Stmt.executeQuery( Query );
            while ( RS.next())
             v.add( new vecfiche( RS.getString("Nom"), RS.getString("Prenom")));
            if( RS!= null) RS.close();}
            if(jRadioButton2.isSelected()==true)
                String Query = "SELECT * FROM amis";
            ResultSet RS= Stmt.executeQuery( Query );
            while ( RS.next())
             v.add( new vecfiche( RS.getString("Anom"), RS.getString("Aprenom")));
            if( RS!= null) RS.close();}
            if(jRadioButton3.isSelected()==true)
                String Query = "SELECT * FROM famille";
            ResultSet RS= Stmt.executeQuery( Query );
            while ( RS.next())
             v.add( new vecfiche( RS.getString("Fnom"), RS.getString("Fprenom")));
            if( RS!= null) RS.close();}
            if( Stmt!= null) Stmt.close();
        catch (Exception E)
            System.out.println("Unable to query.");
            System.out.println(E.getMessage());
            return null;
        try
            connection.close();
        } catch (Exception E)
            System.out.println("Unable to close.");
            System.out.println(E.getMessage());
            return null;
        return v;
    }

How to monitor load on my database server ?

Hi Experts,
Could anybody please suggest me a way to monitor the load on my database server?
What perfmon counters should I monitor on daily basis and confirm that load on the server is increasing day by day [or] by week by week [or] every month. Also, suggest me if we can achieve this using DMV's so that we can store this info in a table using a SQL
agent job. Because a sql guy I would be more happy working with TSQL queries.
Do all this helps me, to put for forward my argument to the management that this server can handle this much of load based on data and incase if the load is increased on the server , we might need more resources ( like cpu, better storage , more RAM etc ...)
or move to a new server which has more power.
Also, please suggest any load testing tools so that I can test this on testing environment.
Thanks in Advance.

About Perfmon counter,
You may refer the below perfmon counter pdf file. You may need to look at all memory counters to confirm the issues.
http://www.quest.com/backstage/images/promotions/SQLServer-Perfmonance-Poster.pdf
Regarding
your request on workload, you need to do a Capacity planning of your servers first.
Please refer the below link, this would explain complete info:
http://sqlactions.com/2012/05/15/collection-and-reporting-of-perfmon-data-for-sql-server-capacity-planning-and-trend-analysis/
To find the SQL Server Usage and monitoring server, you can even think of
third party tools like Spotlight/Foglight etc...
http://www.quest.com/foglight-for-sql-server/

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.

Image path not storing in sql database

Hello,
I have read here on the forum how to upload an image to server and store path in your database, the image uploads correctly to the correct folder on my server but the image path does not get stored on my sql database (not local hosting). I receive the error: The file has been uploaded, and your information has been added to the directory. Column 'image' cannot be null.
My database has the following columns:
id
datum
image
sectie
My code is as follows:
<?php require_once('Connections/dbTroch.php'); ?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);
switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
return $theValue;
mysql_select_db($database_dbTroch, $dbTroch);
$query_rs_aanbod = "SELECT * FROM tblSlideshow ORDER BY id ASC";
$rs_aanbod = mysql_query($query_rs_aanbod, $dbTroch) or die(mysql_error());
$row_rs_aanbod = mysql_fetch_assoc($rs_aanbod);
$totalRows_rs_aanbod = mysql_num_rows($rs_aanbod);
$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
$target = "images/slides/"; //This is the directory where images will be saved//
$target = $target . basename( $_FILES['image']['name']); //change the image and name to whatever your database fields are called//
if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "add-photos-aanbod")) {
$insertSQL = sprintf("INSERT INTO tblSlideshow (image, sectie) VALUES (%s, %s)",
                       GetSQLValueString($_POST['file'], "text"),
                       GetSQLValueString($_FILES['image']['name'], "text"));
//This code writes the photo to the server//
if(move_uploaded_file($_FILES['image']['tmp_name'], $target))
//And confirms it has worked//
echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded, and your information has been added to the directory";
else {
//Gives error if not correct//
echo "Sorry, there was a problem uploading your file.";
mysql_select_db($database_dbTroch, $dbTroch);
$Result1 = mysql_query($insertSQL, $dbTroch) or die(mysql_error());
?>
<!doctype html>
<html>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Troch Project Solutions - Admin - Toevoegen</title>
<link rel="stylesheet" href="css/foundation.css" />
<link rel="stylesheet" href="css/layout.css" />

<script type="text/javascript" src="//use.typekit.net/vob8gxg.js"></script>
<script type="text/javascript">try{Typekit.load();}catch(e){}</script>

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="js/vendor/modernizr.js"></script>
</head>
<body>
    <div class="row">
      <div class="large-8 medium-8 small-8 large-centered medium-centered small-centered columns intro">
          <h2 class="subheader text-center">Admin</h2>
          <p><a>Log uit</a></p>
          <p><a href="admin.php">Terug naar Admin menu</a>
          <h4>image toevoegen naar aanbod slideshows:</h4>
          <form action="<?php echo $row_rs_aanbod['']; ?>" method="POST" name="add-photos-aanbod" id="add-photos-aanbod" enctype="multipart/form-data">
          <table>
                <tbody>
                     <tr>
                          <td><label for="image">Kies foto:</label></td>
                          <td><input name="image" type="file" id="image" value="<?php echo $row_rs_aanbod['image']; ?>" /></td>
                    <tr>
                          <td>Sectie:</td>
                          <td><select name="sectie" id="sectie" option value="sectie">
                            <?php
do {
?>
                            <option value="<?php echo $row_rs_aanbod['sectie']?>"><?php echo $row_rs_aanbod['sectie']?></option>
                            <?php
} while ($row_rs_aanbod = mysql_fetch_assoc($rs_aanbod));
$rows = mysql_num_rows($rs_aanbod);
if($rows > 0) {
      mysql_data_seek($rs_aanbod, 0);
      $row_rs_aanbod = mysql_fetch_assoc($rs_aanbod);
?>
                          </select></td>
                    </tr>
                    <tr>
                        <td><input type="Submit" name="Add" id="add" value="Toevoegen" /></td>
                    </tr>
            </tbody>
        </table>
        <input type="hidden" name="MM_insert" value="add-photos-aanbod" />
    </form>
      </div>
    </div>
<script src="js/vendor/jquery.js"></script>
<script src="/js/vendor/fastclick.js"></script>
<script src="js/foundation.min.js"></script>
<script>
            $(document).foundation();
        </script>
</body>
</html>
<?php
mysql_free_result($rs_aanbod);
?>
I cannot work out what is wrong and I would appreciate any help on this. Thanks

Your form field and array variable names do not match
<td><input name="image" type="file" id="image" value="<?php echo $row_rs_aanbod['image']; ?>" /></td>
GetSQLValueString($_POST['file'], "text"),

Intermittant (not constant) SQL database ShareWebDb login failed events 3760 and 2424

My Sharepoint 3.0 services that were bundled with SBS 2008 appear to be working fine. Companyweb, etc, all work w/o issue, so I don't want to take violent action, but these errors seem to be accellerating so I would love to know if there is a known
solution.
I typically receive the following (these are in reverse time order, latest at the top, just as they appear in the event log):
Error Event ID: 3760 SQL Database 'ShareWebDb' on SQL Server instance 'np:\\.\pipe\MSSQL$Microsoft##SSEE\sql\query' not found. Additional error information from SQL Server is included below. Cannot open database "ShareWebDb" requested
by the login. The login failed. Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.
one second earlier:Error Event ID: 2424 The update cannot be started because the content sources cannot be accessed. Fix the errors and try the update again. Context: Application 'Search', Catalog 'index file
on the search server Search'
Information Event ID: 18456 No description, here is the Details:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider
Name="MSSQL$MICROSOFT##SSEE" />
<EventID Qualifiers="49152">18456</EventID>
<Level>0</Level>
<Task>4</Task>
<Keywords>0x90000000000000</Keywords>
<TimeCreated
SystemTime="2010-11-12T18:35:06.000Z" />
<EventRecordID>491461</EventRecordID>
<Channel>Application</Channel>
<Computer>myserver.mydomain.local</Computer>
<Security
UserID="S-1-5-20" />
</System>
<EventData>
<Data>NT AUTHORITY\NETWORK SERVICE</Data>
<Data>[CLIENT: <named pipe>]</Data>
<Binary>184800000E000000170000005000450054003300310030005C004D004900430052004F0053004F00460054002300230053005300450045000000070000006D00610073007400650072000000</Binary>
</EventData>
</Event>
Two seconds earlier
Information Event ID 17137 No description, here is the Details:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider
Name="MSSQL$MICROSOFT##SSEE" />
<EventID Qualifiers="16384">17137</EventID>
<Level>4</Level>
<Task>2</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated
SystemTime="2010-11-12T18:35:04.000Z" />
<EventRecordID>491460</EventRecordID>
<Channel>Application</Channel>
<Computer>mysever.mydomain.local</Computer>
<Security
UserID="S-1-5-20" />
</System>
<EventData>
<Data>ShareWebDb</Data>
<Binary>F14200000A000000170000005000450054003300310030005C004D004900430052004F0053004F00460054002300230053005300450045000000070000006D00610073007400650072000000</Binary>
</EventData>
</Event>
I get more 3760 errors than 2424's. However, the
2424's do seem to usually correspond to a 3760 18456 17137 occurance and the
3760 are always preceeded by 18456 17137. I was getting one or two sets a day, lately that has increased to 5 or 10.
I've done a lot of
web research on Sharepoint Errors 3760 and
2424 and I see a number of people are experiencing the the same issue. Most of what I've come across for solutions do not apply, since errors are intermittent, not chronic and my public remote URL has already been added
to BackConnectionHostNames as per:
http://blogs.technet.com/b/sbs/archive/2009/08/05/sharepoint-services-3-search-event-errors-after-an-sbs-2008-update-rollup.aspx
I installed the SQL Server Management Studio Express so I could try to track down the permissions on this database. I see the SQL server instance, MYSERVER\Microsoft##ssee, and it shows as running, but when I try to connect to it I get 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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)" I'm assuming that is because I don't have access permission for that internal database.
I don't see any errors in the event log related to failed logins or any errors at all from the SQL server, but there are the time matching informational entries right before the error events and lots of other 17137's and 2803's from MSSQL$Microsoft##ssee

Thank you Kevin, that does seem to match my symptoms and I have made the change suggested. Just incase that page becomes unreachable by others, here is the part of the page that applies to this:
Issue:
=========
Receive event error 3760 and 6398 on SBS 2008
Cause:
==========
Issue was caused by incorrect Auto Close option for ShareWebDb database
Solution:
==========
1. On the SBS 2008 server, click Start -> All Programs -> Microsoft SQL Server 2005, right click SQL Server Management Studio Express and choose run as administrator.
NOTE: You must run it as administrator to perform steps below.
2. In the Server Name box, type \\.\pipe\MSSQL$Microsoft##SSEE\sql\query, click connect.
3. Expand Database node and right click the ShareWebDb then choose properties.
4. Click Options in the left pane, in the right pane, please check whether the Auto Close option is set to True, if so, please change it to False.

Advise on SQL database process

Dear all,
We have build our own product CMS platform configuration which is running on SQL server and CMS web site link to it.
We will lauch our product soon but need to identify the correct hosting plan for not having any further issue.
For exemple for now all is hosted in our company azure account with a Standard Basic 5 DTU's.
When we go in production we can expect some connection and big amount of data on our database.
My question are as follow :
- Does using a single database storage for my potential Customers would be enough ?
- How should I plan backup efficiently ?
- Should I plan a safety replication process somewhere in azure or duplicate the storage in order to switch in case of lack of place ?
My concern is to avoid my database beeing full while customers increase
Thanks for your advise and help
regards
serge

Hi Solatys,
- If I select by default STANDARD Azure database, which size, DTU, etc should I select ?
For this question, you may reference the below link. You can scale your Azure database performance based on the real-time requirement.
Azure
SQL Database introduces new near real-time performance metrics
- If for instance the initial URL of the web portal connected to SQL server1 has a trouble, how can I switch users transparently to a second replicated server in order that user will notify anything ?
Azure SQL Database has a built-in high availability subsystem that protects your database from failures of individual servers and devices in a datacenter. Azure SQL
Database maintains multiple copies of all data in different physical nodes located across fully independent physical sub-systems to mitigate outages due to failures of individual server components, such as hard drives, network interface adapters, or even entire
servers. At any one time, three database replicas are running—one primary replica and two or more
secondary replicas. Data is written to the primary and one secondary replica using a quorum based commit scheme before the transaction is considered committed.
If the hardware fails on the primary replica, Azure SQL Database detects the failure and fails over to the secondary replica. In case of a physical loss of a replica, a new replica is automatically created.
So there are always at minimum two physical, transactionally consistent copies of your data in the datacenter.
Azure SQL Database Business Continuity
- IF I select the Maximum size of the database, what will happen in case it will be nearly full and need to provide more space ?
Insert and update transactions that exceed the upper limit will be rejected because the database will be in read-only mode. The maximum size has been gained from 50GB to 500GB as of now, you may have no concern about it. You can
set a monitoring alertto
notify the storage utilization and CPU percentage etc.
If you have any question, feel free to let me know.
Eric Zhang
TechNet Community Support

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.

Could not load data from database after adding a query

Dear all,
I have a working crystal reports 2011 report. This report get its data from a BW 7.01 system provided by three bex queries. Everything works as expected but not I have to add a fourth query to the report then I get the following messages:
I try to translate it because I user the german version:
INFORMATION: In this report a stored procedure is used. Ensure that no SQL expression was added and no grouping on server side will be done.
WARNING: Data could not be load from the database.
WANING: Invalid argument provided. Details: The key figure structure isn't a valid field for report generation. Use instead the real keyfigures with teir units.
Has anyone an idea what can be the reason for my issue?
Thanks and regards!

hi Gerrit,
a couple of questions...
1) are you adding all 3 queries (and then the 4th) in the same data connection or are each of these additional queries in a subreport?
2) if all 3 queries (and then the 4th) are in the same data connection are you linking them?
3) most importantly, if you create a brand new report off of the 4th query, is it successful?
it's been quite a while since I've worked with bex queries but in general adding multiple queries (or stored procs or commands or combinations thereof) to the same report is probably not a good idea. there ends up being a lot of processing happening in the crystal reports designer itself as a large virtual record set is created by the individual queries.
-jamie

Getting error while backing up SQL database using powershell

I am trying to backup SQL database but strange thing is taking lpace, few databases i can backup with powershell but few i am getting error
Exception calling "SqlBackup" with "1" argument(s): "Backup failed for Server
'Server1'. "
At C:\_Scripts\defaultbackup.ps1:40 char:1
+ $smoBackup.SqlBackup($server)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FailedOperationException
$dbToBackup = "test"
#clear screen
cls
#load assemblies
#note need to load SqlServer.SmoExtended to use SMO backup in SQL Server 2008
#otherwise may get this error
#Cannot find type [Microsoft.SqlServer.Management.Smo.Backup]: make sure
#the assembly containing this type is loaded.
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO") | Out-Null
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SmoExtended") |
Out-Null
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.ConnectionInfo")
| Out-Null
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SmoEnum") | Out-
Null
#create a new server object
$server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") "(local)"
$backupDirectory = $server.Settings.BackupDirectory
"Default Backup Directory: " + $backupDirectory
$db = $server.Databases[$dbToBackup]
$dbName = $db.Name
$timestamp = Get-Date -format yyyyMMddHHmmss
$smoBackup = New-Object ("Microsoft.SqlServer.Management.Smo.Backup")
#BackupActionType specifies the type of backup.
#Options are Database, Files, Log
#This belongs in Microsoft.SqlServer.SmoExtended assembly
$smoBackup.Action = "Database"
$smoBackup.BackupSetDescription = "Full Backup of " + $dbName
$smoBackup.BackupSetName = $dbName + " Backup"
$smoBackup.Database = $dbName
$smoBackup.MediaDescription = "Disk"
$smoBackup.Devices.AddDevice($backupDirectory + "\" + $dbName + "_" + $timestamp +
".bak",
"File")
$smoBackup.SqlBackup($server)
#let's confirm, let's list list all backup files
$directory = Get-ChildItem $backupDirectory
$smoBackup.Devices.AddDevice($backupDirectory + "\" + $dbName + "_" + $timestamp + ".bak", "File")
$smoBackup.SqlBackup($server)
#let's confirm, let's list list all backup files
$directory = Get-ChildItem $backupDirectory
#list only files that end in .bak, assuming this is your convention for all backup files
$backupFilesList = $directory | where {$_.extension -eq ".bak"}
$backupFilesList | Format-Table Name, LastWriteTime
$backupFilesList = $directory | where {$_.extension -eq ".bak"}
$backupFilesList | Format-Table Name, LastWriteTime
I read on internet that by using this in the script this problem can be sorted but i am
not sure where exactly to put this line in above script set the ConnectionContext.StatementTimeout to 0


Hi Srk,
I found the similar issue in this article, which had been sovled by adding the script below:
$server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") $dbInstance
$server.ConnectionContext.StatementTimeout = 0
Refer to:
Exception calling "SqlBackup" with "1" argument(s)
Please feel free to let me know if this method can not work.
Best Regards,
Anna Wang

Issue to load data from database to XML file. error: ODI-40768

Hi,
While I am trying to load data from database to XML following error is appearing.
ODI-1228: Task TEST_XML_DATA (Integration) fails on the target XML connection MyLOCALXSD.
Caused By: java.sql.SQLException: ODI-40768: Could not save the file <default>:C:\DATA_FILE\www.xml because a class java.io.IOException occurred and said: The filename, directory name, or volume label syntax is incorrect
     at com.sunopsis.jdbc.driver.xml.SnpsXmlFile.writeToFile(SnpsXmlFile.java:751)
     at com.sunopsis.jdbc.driver.xml.SnpsXmlConnection.internalExecute(SnpsXmlConnection.java:769)
     at com.sunopsis.jdbc.driver.xml.SnpsXmlPreparedStatement.execute(SnpsXmlPreparedStatement.java:46)
     at oracle.odi.runtime.agent.execution.sql.SQLCommand.execute(SQLCommand.java:166)
     at oracle.odi.runtime.agent.execution.sql.SQLExecutor.execute(SQLExecutor.java:102)
     at oracle.odi.runtime.agent.execution.sql.SQLExecutor.execute(SQLExecutor.java:1)
     at oracle.odi.runtime.agent.execution.TaskExecutionHandler.handleTask(TaskExecutionHandler.java:50)
     at com.sunopsis.dwg.dbobj.SnpSessTaskSql.processTask(SnpSessTaskSql.java:2906)
     at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTask(SnpSessTaskSql.java:2609)
     at com.sunopsis.dwg.dbobj.SnpSessStep.treatAttachedTasks(SnpSessStep.java:540)
     at com.sunopsis.dwg.dbobj.SnpSessStep.treatSessStep(SnpSessStep.java:453)
     at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java:1740)
     at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor$2.doAction(StartSessRequestProcessor.java:338)
     at oracle.odi.core.persistence.dwgobject.DwgObjectTemplate.execute(DwgObjectTemplate.java:214)
     at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor.doProcessStartSessTask(StartSessRequestProcessor.java:272)
     at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor.access$0(StartSessRequestProcessor.java:263)
     at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor$StartSessTask.doExecute(StartSessRequestProcessor.java:822)
     at oracle.odi.runtime.agent.processor.task.AgentTask.execute(AgentTask.java:123)
     at oracle.odi.runtime.agent.support.DefaultAgentTaskExecutor$2.run(DefaultAgentTaskExecutor.java:83)
     at java.lang.Thread.run(Thread.java:662)
jdbc url: jdbc:snps:xml?d=C:\test_xsd.xsd&s=TESTSQL&re=employeesX&ro=true
physical schema: TESTSQL
Knowledge modules are:
LKM: LKM SQL to SQL
IKM: IKM XML Control Append
CKM: CKM SQL
Parameters set are:
CREATE_XML_FILE: true
XML_PATH:<default>:C:\DATA_FILE\www.xml
I have tried to change the directory path but error is still there.
Could some one please help me to resolve the issue?
Regards,
user1672911

Hi,
The trouble in "<default>:" - if you set XML_PATH as C:\DATA_FILE\www.xml instead <default>:C:\DATA_FILE\www.xml- it will work correctly.
Greetings,
Eugene

Comparison of Data Loading techniques - Sql Loader & External Tables

Below are 2 techniques using which the data can be loaded from Flat files to oracle tables.
1)     SQL Loader:
a.     Place the flat file( .txt or .csv) on the desired Location.
b.     Create a control file
Load Data
Infile "Mytextfile.txt" (-- file containing table data , specify paths correctly, it could be .csv as well)
Append or Truncate (-- based on requirement) into oracle tablename
Separated by "," (or the delimiter we use in input file) optionally enclosed by
(Field1, field2, field3 etc)
c.     Now run sqlldr utility of oracle on sql command prompt as
sqlldr username/password .CTL filename
d.     The data can be verified by selecting the data from the table.
Select * from oracle_table;
2)     External Table:
a.     Place the flat file (.txt or .csv) on the desired location.
abc.csv
1,one,first
2,two,second
3,three,third
4,four,fourth
b.     Create a directory
create or replace directory ext_dir as '/home/rene/ext_dir'; -- path where the source file is kept
c.     After granting appropriate permissions to the user, we can create external table like below.
create table ext_table_csv (
i Number,
n Varchar2(20),
m Varchar2(20)
organization external (
type oracle_loader
default directory ext_dir
access parameters (
records delimited by newline
fields terminated by ','
missing field values are null
location ('file.csv')
reject limit unlimited;
d.     Verify data by selecting it from the external table now
select * from ext_table_csv;
External tables feature is a complement to existing SQL*Loader functionality.
It allows you to –
•     Access data in external sources as if it were in a table in the database.
•     Merge a flat file with an existing table in one statement.
•     Sort a flat file on the way into a table you want compressed nicely
•     Do a parallel direct path load -- without splitting up the input file, writing
Shortcomings:
•     External tables are read-only.
•     No data manipulation language (DML) operations or index creation is allowed on an external table.
Using Sql Loader You can –
•     Load the data from a stored procedure or trigger (insert is not sqlldr)
•     Do multi-table inserts
•     Flow the data through a pipelined plsql function for cleansing/transformation
Comparison for data loading
To make the loading operation faster, the degree of parallelism can be set to any number, e.g 4
So, when you created the external table, the database will divide the file to be read by four processes running in parallel. This parallelism happens automatically, with no additional effort on your part, and is really quite convenient. To parallelize this load using SQL*Loader, you would have had to manually divide your input file into multiple smaller files.
Conclusion:
SQL*Loader may be the better choice in data loading situations that require additional indexing of the staging table. However, we can always copy the data from external tables to Oracle Tables using DB links.

Please let me know your views on this.

Load on SQL Database Is gonna be increased!!!!

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