SyntaxHighlighter

Saturday, 11 December 2010

Generate Bulk Data

Came across this little puppy the other day to generate bulk data. It's pretty sweet, you can specify what you want and can modify the format of the output.

Good work guys!

Wednesday, 1 December 2010

QR Codes in .NET

I really like the idea of QR codes. I can see so many ways of using them - they excite me ;)

This guy is knocking out a sweet little .NET library to create/encode and decode qr codes. It's open source and ready to go.

This is a nice quick and easy QR code builder that will create a code for you in the meantime and you could use runtime from a site/app you work on.

TechyGypo is a Twit(ter)

Thought I'd sign up myself up a twitter account. @techygypo it is!

MSSQL ISNUMERIC - Is it?

I didn't realise that ISNUMERIC('123 £') returns 1 - did you? If you didn't either then I'd suggest you read this article Why doesn't ISNUMERIC work correctly? by Jeff Moden on SQLServerCentral.com.

Taken from the article, the easiest test is to use a regular expression:

SELECT *
FROM mytable
WHERE mytable.mycolumn NOT LIKE '%[^0-9]%'

There is also a useful function he has written that could prove to be handy.

Thanks Jeff. Think I'd better re-trace some steps to make sure scripts using ISNUMERIC are a bit tighter!

Friday, 26 November 2010

Rant: VB.NET and Arrays

I can't take it any longer and I have to air my serious frustration with VB.NET and the way it makes you handle arrays - aarrrggghhh!

In all the languages I have come across and know it is only VB that declares arrays wrongly. There's no possible reason why an array declared with 3 elements should have 4. it's stupid!

Dim myArray(1) As String
myArray(0) = "1"  'Most languages would stop here - not VB!
myArray(1) = "2"

This is hard for me to accept - it so annoys me :@ But, don't cut off the hand that feeds the mouth and all that rubbish. So I keep quiet and truck on...

The bullet in the head came recently when I wanted to resize an array. So being a good boy I used the Array.Resize method. This is what caused the rant...VB has double standards!

I wanted to add an element to myArray(1) to make it myArray(2). So on the basis of the Dim statement I did:

Array.Resize(myArray, 2)

FAIL! You have to do:

Array.Resize(myArray, 3)

VB - make your frigging mind up!!
I know, I know...I should use an ArrayList, but I was dealing with someone else's code so was stuck with stupid VB arrays - grrr!

MSSQL Reporting Services: Invalid Object Name on Temporary Table

I had an Invalid Object Name error when I was using a temporary table inside a stored procedure when I was reporting services. It ran fine in management studio but errored in the report designer wizard.

Fixed it by using the SET FMTONLY OFF command. Happy days :)

Thursday, 25 November 2010

MySQL Reset / Reseed Indentity Column

So, there I was refreshing all the data in a MySQL dev database and the TRUNCATE statement wasn't resetting the identity column. Bummer. Hey ho, was probably something to do with the table format. But I couldn't be arsed to mess about with that so used the ALTER TABLE statement to do it instead:

ALTER TABLE `my_table_name` AUTO_INCREMENT = 1;

I needed to set the identity back to 1, but use whatever number you need it to be set to.

Tuesday, 23 November 2010

HeidiSQL: MySQL Client


Just started using a nifty MySQL client for Windows called HeidiSQL. I haven't long been using it anger, so I can't say whether I am 100% happy with it yet. I've used it a reasonable amount and so far it has been ace.

It's free to use and you can donate if you like.

Wednesday, 17 November 2010

Monitor High CPU Usage in SQL Server

Been having a situation with a client of mine recently where the SQL Server has been thrashing the CPU and ultimately killing it. And what comes through this morning in the SQLServerCentral.com newsletter but an article Geoff Albin wrote on how to monitor high CPU usage in SQL Server.
Sweet :)

Tuesday, 16 November 2010

PHP File / Page Names Containing Only Numbers

Just had a pretty cunning one where having moved a site to a new server running PHP version 5.3.3 pages/files that were named with only numbers (e.g. 123.php) raised a 500 internal server error page.

This had clearly not been a problem on the previous Windows (IIS) server running PHP 5.2, but was on this one. Now whether or not this was a PHP version difference or a server difference, I don't know.

I fixed it by renaming the file to contain at least 1 letter. So it is now named 123a.php.

Thursday, 11 November 2010

Dynamically Determine the Current Method / Function in C# and VB.NET

Needed to do some basic reflection the other day to easily determine the current method that was being executed in a VB ASP.NET application.

So here's the C# for it:

//Current method name
System.Reflection.MethodBase.GetCurrentMethod()
    .Name;

//Fully qualified name of the method's class
System.Reflection.MethodBase.GetCurrentMethod()
    .ReflectedType.FullName;

//Method's class name without Namespace
System.Reflection.MethodBase.GetCurrentMethod()
    .ReflectedType.Name;

//Namespace
System.Reflection.MethodBase.GetCurrentMethod()
    .ReflectedType.Namespace;

And the VB.NET:

'Current method name
System.Reflection.MethodBase.GetCurrentMethod(). _
    Name

'Fully qualified name of the method's class
System.Reflection.MethodBase.GetCurrentMethod(). _
    ReflectedType.FullName

'Method's class name without Namespace
System.Reflection.MethodBase.GetCurrentMethod(). _
    ReflectedType.Name

'Namespace
System.Reflection.MethodBase.GetCurrentMethod(). _
    ReflectedType.Namespace

Tuesday, 19 October 2010

Sending Email using ASP.NET via Google Apps Mail / GMail

I have recently moved all my hosting to go through Google Apps and it is sweet :)

This meant that I needed to modify my emailing routine in various .NET apps. A lot of this can be done via the Web.Config, but due to various reasons, I need to control it in code.

So configure your MailMessage object as per usual. I have added msg.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure; to mine, which could prove to be useful. Then configure your SmtpClient a follows:

SmtpClient smtp = new SmtpClient("smtp.gmail.com");
smtp.EnableSsl = true;
smtp.Timeout = 10000;
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
smtp.UseDefaultCredentials = false;
smtp.Credentials = new System.Net.NetworkCredential("email@mydomain.com", "my-password");
smtp.Send(msg);

Now a lot of articles I read suggested that you need to use port number 587 for the SmtpClient. When I did, I got the following error:

Request for the permission of type 'System.Net.Mail.SmtpPermission' failed

So I tried without declaring it and it worked just fine :)

A point worth noting: Make sure the account you are sending the email through is the same account that you are sending from.

Thursday, 26 August 2010

GRANT ALL Permissions on SQL Objects

Here's a quick little widget I created to GRANT ALL permissions on all SQL Server objects. It's crude and nasty, but does the trick. Quite easy to modify if need be...

DECLARE cObjects CURSOR READ_ONLY
FOR
SELECT name, xtype
FROM sysobjects
LEFT OUTER JOIN syspermissions ON sysobjects.id = syspermissions.id
WHERE xtype IN ('V', 'P', 'U', 'FN')
AND syspermissions.id IS NULL

DECLARE @ObjName varchar(255), @ObjType varchar(2)
DECLARE @SQL varchar(MAX)
DECLARE @User varchar(100)
SELECT @User = '[DOMAIN]\[USER]'

OPEN cObjects

FETCH NEXT FROM cObjects INTO @ObjName, @ObjType
WHILE (@@FETCH_STATUS <> -1)
BEGIN
 IF (@@FETCH_STATUS <> -2)
 BEGIN
  --Set the access permissions
  IF @ObjType = 'V' -- View
   SELECT @SQL = 'SELECT, INSERT, DELETE, UPDATE'
  ELSE IF @ObjType = 'P' -- Stored Procedure
   SELECT @SQL = 'EXEC'
  ELSE IF @ObjType = 'U' -- Table
   SELECT @SQL = 'SELECT, INSERT, DELETE, UPDATE'
  ELSE IF @ObjType = 'FN' -- User Defined Function
   SELECT @SQL = 'EXEC'

  --Build the rest of the statement and execute
  SELECT @SQL = 'GRANT ' + @SQL + ' ON dbo.[' + @ObjName + '] TO [' + @User + ']'
  EXEC(@SQL)
  PRINT @SQL
 END
 FETCH NEXT FROM cObjects INTO @ObjName, @ObjType
END

CLOSE cObjects
DEALLOCATE cObjects
GO

Syntax Highlighting / Format Code in Blogger

Check out SyntaxHighlighter for some top syntax highlighting in Blogger. It can be used in various blogs. Here is a walk-through on integrating SyntaxHighligher into Blogger.

Monday, 23 August 2010

Multi-Script, Multi-DB Deployments

A useful, but quite obvious way of executing multiple scripts: http://www.sqlservercentral.com/articles/scripting/70783/.

I need to do this quite regularly - so will probably write a little widget to compile the scripts into a file. Hopefully save a little bit of time there as well :)

Wednesday, 11 August 2010

Change Proxy Server in IE

Here's a nifty way to easily change the proxy server in IE: www.proxychanger.com.

I had a situation recently where I needed to be able to easily turn using a proxy on and off. This saves having to type it in everytime after you have removed it.

AJAX Loading Animation

Came across this useful free widget to create a nice AJAX loading icon: www.ajaxload.info. You can choose a type along with background and foreground colours.

Custom Domains on Blogger/BlogSpot.com

Had a real nightmare over the last couple of days getting the custom domain thing working for a blogspot.com site that uses a sub-domain.

Following instructions on How do I use a custom domain name on my blog?, I contacted my host (who will remain nameless - by the by, there should be a follow-up rant post about them, but I won't...) and asked them to set the CNAME record for blog.thewebsiteinquestion.com to ghs.google.com. They did and it worked - for a few hours.

Obviously, the gremlins somehow got in and screwed it up. The hosts were convinced that the CNAME was correct - I was not. Cunningly, when going to blog.thewebsiteinquestion.com I was being directed to the Google search page.

So after a bit of hunting, I found this site http://www.kloth.net/services/dig.php that offers a lookup on the DNS info. Sure enough it politely informed me that the CNAME record was set to blogger.com and not ghs.google.com.

Sure enough, once they changed it - it all worked again and everybody was happy - especially me :)

Call to undefined function mcrypt_module_open()

I was getting a Call to undefined function mcrypt_module_open() in PHP 5. All my Google searches were giving me the usual "make sure php_mcrypt.dll is uncommented in your php.ini". Mine was and still no luck :(

Solution for me was to add libmcrypt.dll into the system32 folder - sweeet! My libmcrypt.dll was located in the root of my PHP install folder.

Happy encrypting :)