HAXM cannot be installed (RESOLVED)

If you get the following error when you install Intel HAXM, please follow the steps bellow to resolve the issue:

This computer does not support Intel Virtualization Technology (VT-x). HAXM cannot be installed. Please refer to the Intel HAXM documentation for more information.

First open your Control Panel and click the item “Programs and Features“.
Then click on Turn Windows Features on or off. When the “Windows Features” dialog opens, just uncheck Hyper-V and restart your system. Voila!

Obviously you have Windows 8/8.1 with Hyper-v installed and as you guess you cannot do Windows Phone development alongside Android development on the same machine since you need Hyper-V for the Android emulators as well :(

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LINQ to XML Descendants operator

<?xml version="1.0" encoding="utf-8"?>

Say we need to retrieve a list of all serials in this XML file. Usually we do it like following using the Elements operator:

IEnumerable<XElement> serials = 

Unlike the Elements operator which returns only the immediate child elements of each element in the source sequence of elements, the Descendants operator recursively returns all child elements until the end of each tree is reached. Thus we can simplify the above code to the following:

IEnumerable<XElement> serials = doc.Descendants("serial");

As you see it can be called on a sequence of elements or documents and returns a sequence of elements containing each source element’s or document’s descendant elements.


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Always show up the errors (if any)

Error Message
Error Message
A few days ago i was hired by a client. I needed to debug a point of sale application (WinForms by the way) written in Visual Basic .NET
Beside the missing documentation and poor OOP implementation (what else you can expect from the Indians) i noticed something totally weird.

Namely instead of displaying the error message if an exception is thrown, the code just stores it into the database pretending that nothing happened.

catch(Exception ex){
    // the user is as you see NOT aware of the exception 
    // so he/she continues to work...

Doesn’t take long to figure what could happen…

NOTE: you can use all those advanced errors handling techniques but you should never ever forget to warn the user if something is not working properly!!!

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Renaming SQL Server database – Error: 5030 (Solution)

I am sure you wonder why for God’s sake you cannot rename that database but rather you get an error:
The database could not be exclusively locked to perform the operation. (Microsoft SQL Server, Error: 5030)

Well usually you get this error because someone else is using the database having active connection(s) to it.

To resolve the issue you should set the database to Single user mode and then rename it. After that you set it back to Multi user mode. Voila!

USE [master];
EXEC sp_renamedb N'Your_Database_Name', N'Your_Database_Name_Renamed';

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RadAjaxManagerProxy Alert method!

So you don’t have any idea where to find the “alert” method of the RadAjaxManagerProxy, right? Guess what, neither did i. I was clueless, literally.
I tried everything that i could think of. In addition the intellisense was not helpful at all.
But good news. It’s certainly easier than you probably thought.
Simply the AjaxManager Proxy is not planned to work that way.
Rather you need to cast your AjaxManager from the Master page and then call its alert method. Voila!

RadAjaxManager mgr = 
(RadAjaxManager)this.Master.FindControl("RadAjaxManager1") as RadAjaxManager;
// show up the alert msg
mgr.Alert("Your message here!");

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Google Chrome didn’t shut down correctly – Issue and Fix

In my case it turned out to be a Google Hangouts related issue.
Namely, if i quit the Hangouts first and then close the Chrome browser i don’t get this error when i start my PC next time.

However if i close Chrome without quitting Hangouts i get that error which is “Google Chrome didn’t shut down correctly”.

Solution: quit hangouts prior closing your Chrome browser and you will not get this odd error message.

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Does BitCoin have a bright future?

bitcoin currency
bitcoin currency
No doubt that Bitcoin is a revolutionary invention because it allows you to be a bank for yourself.

Meaning NO banks or government affiliation and therefore no commissions, no foreign transaction fees and no fraud risk. In addition, no stolen card, no identity theft violation etc. etc.

But, even though Bitcoin is probably the best form of money I’ve ever seen I am afraid that governments will never accept it as a payment method because of the banks that control them.

So , they will keep using the Bitcoin’s affordances, e.g. money-laundering to justify their hostility, but in fact it’s because they don’t want a currency which can’t be used for political order.

My $0.02

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Formalism (Формализам)


When I look back on the years (12+) I spent on programming I cannot but think that i was totally right when i decided not to follow the “expert’s advice” and use all those tools for massive class hierarchy. Rather I stayed away relying on my intuition. Today I am very proud of myself because of that.

By the way, I am not saying that those tools are generally bad, but they were all propagated by people who were poor programmers looking for an excuse to avoid writing code.

They are the same “experts” who spent years on introducing formalism in form of UML, Extreme Programming, Patterns and other pseudo-engineering tools.



После 12 години активно програмирање можам да заклучам дека сум презадоволен од фактот што си ја послушав мојата интуиција, наместо да ги пратам тогашните сугестии од еден куп т.н. стручњаци, кои заговараа најразлични пристапи и масивни програмерски хиерархии.

Да нема забуни, се сложувам дека сите тие методи имаат и свои добри особини, но сепак проблемот е што сите тие беа (за жал) иновирани од лоши програмери кои бараа изговор за да го избегнат програмирањето (пишување код).

Тое се истити оние кои залудно потрошија години и години пропагирајки формализам во форма на UML, Extreme Programming, Patterns и други псеудо програмирачки алатки.

Толку за тоа.

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T-SQL Get a List of columns of certain Data Type

Not sure if this could help someone but today i needed to grab all the real datatype columns and put into an array.
It would not be a problem if my table does not have more than 800 columns. Anyway this is what i did:

	'"' + COLUMN_NAME + '",'
	DATA_TYPE = 'real'
	TABLE_NAME = 'MyTable'

Then you just copy/paste the result within your array e.g.

private string[] = new string[]{ // results copied here };

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How to get the ASP.NET page name from the URL

I could come with say few more ways but today i will post only the most frequently used methods


' method #1
Private Function PageName() As String
    Return Path.GetFileName(Page.Request.Url.AbsolutePath).ToLower
End Function
' method #2
Private Function PageName() As String
     Return New FileInfo(Request.Url.AbsolutePath).Name.ToLower
End Function
' method #3
Private Function PageName() As String
        Dim abspath As String = Request.Url.AbsolutePath
        Return abspath.Substring(abspath.LastIndexOf("/") + 1, _
               abspath.Length - (abspath.LastIndexOf("/") + 1)).ToLower
End Function


// method #1
private string PageName()
	return Path.GetFileName(Page.Request.Url.AbsolutePath).ToLower();
// method #2
private string PageName()
	return new FileInfo(Request.Url.AbsolutePath).Name.ToLower();
// method #3
private string PageName()
	string abspath = Request.Url.AbsolutePath;
	return abspath.Substring(abspath.LastIndexOf("/") + 1, 
               abspath.Length - (abspath.LastIndexOf("/") + 1)).ToLower();

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How to install SqlMembershipProvider Schema in your SQL Server instance

This is for the people who are used to install Membership, Roles etc. including all those tables, views, and stored procedures in the database from within the Visual Studio (earlier versions).

As it’s not supported anymore in the newer versions of your favorite IDE you need to do it in a different way.

Well you need to use a tool called aspnet_regsql.exe and can be found at %WINDIR%\Microsoft.Net\Framework\{YourNetVersion}


Just double-click the executable and then when the dialog appears follow the instructions … it’s a self-explanatory. Cheers

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Freelancer crisis? An Open Letter to the Directors (Freelancer.com Review)


I can freely say that after you ruined the whole freelancer business (acquiring and merging the competition – scriplance, vworker etc. etc.) now we can do nothing but pray. In the meantime we can fight among ourselves.

We fight with the few bucks buyers. Then they complain, just because you allowed them to.
Then you fight back with us sending various warnings and threatening messages in a “your account will be suspended” manner.
I see your path guys, but i don’t know where it leads. Nowhere i guess …

A few days ago i noticed that actually you favor some freelancers over others. Yes you do. I have it recorded so you can see for yourself.


As you see you favor a guy whose Completion Rate is only 79% and is much lower than mine … plus i have 6.2 earnings while he has only 4.4

It just makes no sense to me … do you maybe have a reasonable explanation for this, except the one that it is system-generated and that is based on a user’s overall reputation?

Oh another thing that bothers me the most is your fee policy to charge a fee prior to getting paid. This is crazy as it happens that i win a $2000 project and if the employer does not pay me i end up stuck with a debt of $200. Yeah, nobody else does that anywhere.

In addition, in your struggle to surpass your competition (oDesk, ELance, Guru, Fivver, 99designs etc. ) you introduced tons of new but useless features and services that nobody needs (well not really).

Meaning, now you have a feature-rich website but you’ve got no quality projects which is a primary goal of your business. Isn’t it?

I beg you guys (freelancer CEO’s) to ask yourselves where you lead us and where you lead the whole business after all.
Do you guys have a clear picture of what your vision and values are?

I recall the time when freelancer.com was getafreelancer.com (GAF); the site was very basic (none of the current features).
However in that period i was using your website to win a project while now i am using it to argue with those 10 bucks idiots, who waste my time every day.
Well, there are some exceptions from time to time but it’s sporadic.

Please do something to save this business as there are thousands hardworking and dedicated individuals whose profession is freelancer.com.

Thank you

By the way do you think it’s time to do something with the Indians? I guarantee that there is no employer who has not been burned by the Indians. I believe that 95% of the Indians are scam, plaguing StackOverflow and such with questions BEGGING someone to does the work that they won on freelancer.com !!!

Important: The following is what happened to me just a few days ago. Well let me get this str8. Freelancer.com stole some money from me, literally. As you see if you get a $1000 project they get $100 for them (upfront as mentioned above in the text). However if you win a £666 project they will charge you $116.25 saying that it’s 10% while your £666.00 will be converted to only $1,049. Meaning either commission should be also $104.9 or when converted £666 should be $1,162.50 as fee should be 10% anyway.

21 Aug 2014 16:18 Credit from currency conversion from £665.93 (GBP) on rate: 1.575344 (USD) 1,049.07  1,833.01
21 Aug 2014 16:12 Debit from currency conversion into (GBP) from (USD) -116.25  783.94
21 Aug 2014 03:11 Done milestone payment from madduxsports for project Next Project for YUGOLANCER (USD) 1,000.00  900.19
20 Aug 2014 15:57 Project fee taken (Next Project for YUGOLANCER) (USD) -100.00  -99.81

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FIX – Error CS0029: Cannot implicitly convert type string to System.Web.UI.WebControls.TextBox

It’s little weird but actually it’s very simple to reproduce the issue. Just set the ID property to “Title” and voila! You’ll get this specific error e.g. if you have a TextBox
< asp:TextBox ID="Title" runat="server" /> you will get the following error:

CS0029: Cannot implicitly convert type string to System.Web.UI.WebControls.TextBox

if it’s DropDownList it would be

CS0029: Cannot implicitly convert type string to System.Web.UI.WebControls.DropDownList


Meaning just change the ID to something else e.g. TitleBox and it will work fine.

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Error: not all code paths return a value C# Fix

Usually you get this error if you’re missing a return statement, but not always!!
Sometimes you may have everything in place but keep getting the same error in your code. e.g.

public static string xmlpath
string result = string.Empty;
if (HttpContext.Current.Request.Url.PathAndQuery.ToLower().Contains("blah"))
result = "blah.xml";
result = "blah-blah.xml";
return result;

FIX: simply rebuild your project | right-click the project in the Solution Explorer and select Rebuild.

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Visual Studio 2013 MySQL doesn’t appear as a data source – FIX

If you can’t see the MySQL in your Visual Studio or you get various errors when you try to e.g.  add a new DataTableAdapter for MySQL database etc. you should do the following:

1. Uninstall everything related to MySql (except the mysql server if any) meaning, connectors and such.

2. Download the latest  .NET connector and MySql For Visual Studio
Connector/NET: http://dev.mysql.com/downloads/connector/net/
MySQL for Visual Studio: http://dev.mysql.com/downloads/windows/visualstudio/

3. Restart your Visual Studio.


MySQL - Data Source

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Twice Born “Venuto al mondo” (2012)

Twice Born 2012
I just wanted to recommend you this brilliant movie :)

I watched it last night and i can say it blew me away.

I would not review the movie in details but if you are looking to watch a good movie then this is certainly one that you should not miss. Very good story and very good acting.

I particularly liked when the very next scene clarifies something that seemed totally different. Definitely my favorite movie for this year.


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I’ve built a new PC last night

It’s been for a while since i built my last PC. In the past i was building PC’s for my kids, friends and neighbors but there is more than 5 years since i haven’t messed with these things.

Well, yesterday i build a new workstation for myself and ladies and gentlemen, i can say that i built a beast of computer.

For the truth’s sake, i cannot stop wondering how powerful the new hardware became in the last few years. In the meantime i was mainly using my old ASUS laptop. Core 2 Duo btw lol.

Wow guys, the new i7 chip-set is a monster. The SSD thing is fast as hell. The fans are super, super quiet (more quieter than my laptop yeah they are) … everything is like a dream to me.

This is the list of components i used (they all work in a perfect harmony by the way):

1. Intel i7-4770 3.40GHz
2. Cooler Master Hyper 212 Evo
4. HDD 1TB WesternDigital 7200rpm
5. SSD 120GB Samsung 840 EVO
7. Kingstone 16GB (2 x 8) DDR3 2133MHz HyperX XMP Beast
8. Gigabyte Sumo Alpha case
9. CoolerMaster Silent Pro M II 520W 80plus bronze
10. SAMSUNG Internal DVD-RW H/H

I also bought a headset CAVIMANUS HS-G700V and guess what, it’s also amazing – highly recommended!!!

The only Con is the price. Not sure if you knew but building a PC in this way is way more expensive than a Laptop with the same hardware (plus laptop comes with monitor and everything).

Believe it or not i paid about $2k for these components. For the same price i could have bought the latest ASUS G750JX with i7 Haswell, GTX780 and SSD 250GB.

However laptop does not suit my needs and my desk space lol

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FIX: Loading panel not showing for AjaxUpdatedControl

There are certain situations when the loading panel (RadAjaxLoadingPanel) is not showing up while your control is still Ajaxified (no page refresh) so everything seems to work except that loading panel effect is kind of invisible.

To fix this you should put the updated control inside e.g. Panel control e.g.

<asp:Panel id="AjaxPanel" runat="server">
   <telerik:RadGrid ....

then change the AjaxSettings like the following:

<telerik:AjaxSetting AjaxControlID="RadGrid1">
        <telerik:AjaxUpdatedControl ControlID="AjaxPanel" LoadingPanelID="DoctorsLoadingPanel" />

also remember that you should never Ajaxify the whole e.g. ContentPlaceHolder in the master page !!!


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Why you should never use the ‘Font Awesome’ for creating glyph’s and stuff!?

The font called FontAwesome is actually a very good font … good looking and everything but for some reasons it does not work in a Firefox browser.
I tried everything including paths fixing (an absolute path), adding www. upfront etc. etc but none of them worked for me. However it works fine in IE and Chrome :(
So either use another font or simply use some graphics instead. Cheers

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Is Windows 8.1 a new OS?

Windows 8.1
Windows 8.1


I can now confidently say that Windows 8.1 is a big improvement (stable, quick and easy to use) over Windows 8.0 but, I can also say that the new version is nothing but a service pack that we used to get with the earlier versions of this OS.

Meaning, although Microsoft wants to present it as a brand new operating system they actually only wants to avoid the term service pack.

Conclusion: think of Windows 8.1 as of Windows 8.0 SP1 ;)

After all the math says that the difference between 8.0 and 8.1 is 0.1 lol

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The University American College Skopje (UACS) – A Short Review of “SCHOOL OF COMPUTER SCIENCE AND INFORMATION TECHNOLOGY”




Generally speaking, it’s a great School with beautiful amphitheaters, classrooms and other facilities required for a modern college.

The location is very convenient, just a few steps away from the local bus station. It is about a 5 minute drive to the downtown. The parking is descent. It’s not paved entirely but, there are plenty of parking lots (well sometimes they fill up quickly).

The Labs are equipped with high-end Computers and are enriched in all the software as well hardware.

The WiFi is usually slow if you’re not near the router or close to a computer lab, but there are many to choose from in the building, and they are all well stocked with the latest technology.

As for the supporting staff, I have nothing but praise. There is always someone helpful at the reception-desk who can answer questions and point you in the right direction.


The teaching and learning, in my opinion are not the primary goals of the school considering the amount of money you must invest. The price is around $3.000,00 (for a part time studies) per year which is certainly too high for what you get. Bad school in terms of getting a quality education. They are more focused on issuing degrees (read money) than real education. I guess that’s why Macedonian Higher Education Institutions (HEIs) ranked UACS as 10th ranked university in Macedonia. Macedonian HEIs Ranking

The teachers … hmm actually there are only two teachers for the whole school, which means 30 subjects and three years in total. In addition these two are also dean and vice-dean of the school. I find it little weird but not really so much creepy.

As for the books; well unfortunately there are no books originally written by the professor responsible for a particular subject. Instead the students learn from power-point presentations converted in PDF format so no books written by the professors which is a common practice in the better ranked universities.
Of course, you may borrow some foreign book from the library but the one that your teacher recommended you usually contains nothing that will be contained in the final exam. For instance they told me to borrow “C++ How to Program – 1303 pages” which is way beyond the knowledge i needed to pass “Fundamentals of programming”.
So just use the materials attached on the portal and shut up.



If you are still in a baby state of living, have rich parents and need to be taken care of, this school will fit your lifestyle perfectly. If you are an adult like me and expect to be treated like an adult stay far away from this university you will not get what a healthy, intelligent, and SELF-motivated individual needs. Instead you will be forced to be coddled in a paradoxical guilt driven way which is the heart of UACS.


Hope this helps someone

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Two Dimensional Array with Unknown Dimension Sizes at Compile Time (C/C++)

Say you have the following problem to be solved:

Create a program in C++ which will enable the user to enter a two dimensional array. [mxn]
(m and n are numbers entered through a keyboard) The program should find the smallest and the
largest elements in the array and should calculate their difference.
At the end the program should print the results as shown in the example.

Please insert value for m: 3
Please insert value for n: 3
Insert values:

A[0][0]: 1 A[0][1]: 3 A[0][2]: 5
A[1][0]: 2 A[1][1]: 9 A[1][2]: 6
A[2][0]: 2 A[2][1]: 4 A[2][2]: 7

The smallest element in the array is: 1
The largest element in the array is: 9
The difference between them is: 8

As you guess to write a code that works you have to use pointers pointing to dynamically allocated types. Meaning, you can’t just say: int A[m][n]; obviously because C++ doesn’t support the array dimensions with sizes not known at compile time!!!


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Game for your kids (find a letter position in the given word)

If you have a preschool kid(s) struggling with the letters i am sure you will find this game useful and helpful.
My son is 6 years old and he certainly struggles with the letters. That’s how i came with the idea to make it little easier for him.
This game helped him to visualize the position of the letter making it very obvious.
I’ve added points/coins and sounds to attract him and to keep his attention as longer as possible. Enjoy!!!

Letter position game

Download C# source code (Visual Studio 2012)

NOTE: As this is very basic programming i coded it procedural without bothering with classes and stuff.
Not sure if the documentation is useful but the code is as mention too basic so every next step would be an over-complication.

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C++ Exam – Fundamentals of programming

C++ Programming
C++ Programming

The following was a part of my c++ exam. I thought i can share the solution, Hopefully it will help someone…

Create a program in C++ which should process a string and find all letters in it which are smaller than
a given control character. The sentence and the control character should be entered by the user. The
program should:
a. Process the whole sentence, find all characters smaller than the control character and
change them with the control character.
b. Print the new sentence.
c. Print the number of changes.


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My Tablet PC Samsung Galaxy Tab3 is Dead. How to fix it eventually.

Galaxy Tab 3
Samsung Galaxy Tab3
Today when my son told me that his recently bought tablet PC (Samsung Galaxy Tab3) can’t be charged and that it does not react on the power button i thought it’s gone. Yeah it was literally dead. However after a while i started to keep the power button longer and longer until i kept it for say 20 seconds. Suddenly something came to the screen. It was the battery image. Then i plugged-in and it started to charge. Meaning, it this ever happen to any of you just press the power button and hold it pressed for 20+ seconds until that short animation appears. Voila!
Hope this helps someone

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error: 50 – Local Database Runtime error occurred.

SQL Server 2012 Express
SQL Server 2012 Express

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: 50 – Local Database Runtime error occurred. Cannot create an automatic instance. See the Windows Application event log for error details.

If you google the error you will find many articles claiming solution.
One of them is the following which is closest to final resolution of this problem.
Windows 7 SP1 causes IntelliTrace Collection to fail on IIS

The only thing that you should change is the IdentityType.
Meaning they suggest that you edit applicationHost.config file found in %windir%\system32\inetsrv\config\ specifically the ApplicationPools section.

<add name="ASP.NET v4.0" managedRuntimeVersion="v4.0">
   <processModel identityType="ApplicationPoolIdentity" loadUserProfile="true" setProfileEnvironment="true" />

It may work for someone but it didn’t for me. Then i had to play around with these settings. Finally when i changed the IdentityType to NetworkService i was able to use My newly created database (SQL Server 2012 express – localDB)


<add name="ASP.NET v4.0" managedRuntimeVersion="v4.0">
   <processModel identityType="NetworkService" loadUserProfile="true" setProfileEnvironment="true" />

Hope this helps someone

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How to disable html tags entering in a TextBox (simple and neat solution)

To prevent the users entering open and close tags characters you may want to use the following javascript code:

var IsShiftDown = false;
function BlockingHtml(Sender, e) {
   var key = e.which ? e.which : e.keyCode;
   if (key == 16) {
     IsShiftDown = true;
   else if ((IsShiftDown == true) && ((key == 188) || (key == 190))) {
     return false;


<asp:TextBox ID="PlainText" runat="server" onkeydown="return BlockingHtml(this,event);" />

Please notice that HTML tags begin with a less-than sign: < and end with a greater-than sign: >. Always. No exceptions!
That’s why we chase the 188 and 190 chars … 188 is the < and 190 is > when the Shift key is pressed!

Hope this helps someone

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SQL Server – Ambiguous column name error

If you execute the following query you will certainly get an Ambiguous column name error:

   Customers AS Cus
   Payments AS Pay
   Cus.CustomerID = Pay.CustomerID
   DATEDIFF(DAY, AddedDate, GETDATE()) < 30

Msg 209, Level 16, State 1, Line 2
Ambiguous column name ‘store_ID’.

It usually means that MSSQL does not know which column you are trying to fetch as the same column name exists in the both tables!!!

Solution for this odd Ambiguous column name error is to use an alias for the column name e.g.

   Customers AS Cus
   Payments AS Pay
   Cus.CustomerID = Pay.CustomerID
   DATEDIFF(DAY, AddedDate, GETDATE()) < 30

Hope this helps someone

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A Query for MERGE with CASE in UPDATE (T-SQL)

i’ve been asked by lost of people about how to use CASE when you write a MERGE statement which is synchronizing (updating) two tables.

So here we go (a very basic example which sync the quantity field in the Products table):

DELETE everything FROM (
FROM QuantityUpdates
) everything
WHERE rownum > 1;
-- please notice that you can also use group by to prevent duplicate rows !!!
Products AS Prod
QuantityUpdates AS Qty
Prod.ItemID = Qty.ItemID
QtyInStock = Qty.QtyInStock,
UpdatedDateStamp = GETDATE(),
Discontinued = CASE WHEN Qty.QtyInStock > 0 THEN 0 ELSE 1 END;

Voila! Hope this helps someone

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Suppress Uppercase Conversion in Visual Studio 2012

As you’ve already noticed, by default all the Main Menu items in your Visual Studio 2012 are uppercase.

To fix this (to disable/suppress uppercase conversion) you have to create a new DWORD in the Registry Editor.

1. run RegEdit.exe (type RegEdit in the Run)

2. Expand the HKEY_CURRENT_USER as shown on the image below

Registry Editor
Registry Editor

3. Right-click General node and then select New -> DWORD (32-bit) Value as shown on the image below.

Context Menu
Context Menu

4. Name it “SuppressUppercaseConversion” and click OK!

5. Double click the newly created value and set the Value data to 1 (as shown on the image below)

Value data
Value data

Voila. Now re-open your Visual Studio 2012 and your Menu items will appear like in the previous version of your favorite IDE

Fix the uppercase menu items in VS 2012
VS 2012 Main Menu uppercase items

Hope this helps to someone! Cheers

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