Uploaded October 2012 | Updated September 2026, 2 weeks ago
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By jayanth.kurup@techytube, for more from this author visit:
techytube.com/author/jayanth.kurup
This video discusses some of the templates that are found in SQL Server profiler and how to use them in relation with other features available in MS SQL Server. We will explore using templates, creating a template and then exporting the TSQL command from within the trace. We will also explore setting up a trace file output and things to keep in mind. This video will build on the topics covered in the first part where we introduced the SQL Server profiler capability. The user will explore features available in Profiler in detail and this will be built on top of when we explore additional topics in future videos where we create a server side trace.
This video is the second on a series on How to work with MS SQL Server Profiler.
Subscribe to our channel here for notifications on new video trainings. For more videos on technology, visit our website at http://www.techytube.com.
By jayanth.kurup@techytube, for more from this author visit:
techytube.com/author/jayanth.kurup
This video discusses some of the templates that are found in SQL Server profiler and how to use them in relation with other features available in MS SQL Server. We will explore using templates, creating a template and then exporting the TSQL command from within the trace. We will also explore setting up a trace file output and things to keep in mind. This video will build on the topics covered in the first part where we introduced the SQL Server profiler capability. The user will explore features available in Profiler in detail and this will be built on top of when we explore additional topics in future videos where we create a server side trace.
This video is the second on a series on How to work with MS SQL Server Profiler.






![Archiving and unarchiving objects in Objective-C
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By pavel@techytube, for more from this author visit:
http://www.techytube.com/author/pavel
There are situations when we want to save the state of our objects to the system, for example when our app has to go in the background, or to terminate.
Of course, we can do our way for saving our objects, but iOS SDK provides us an elegant way for doing that by using NSKeyedArchiver - to archive objects, and NSKeyedUnarchiver - to unarchive objects.
But in order for those methods to work correctly, we need to implement 2 instance methods in the class we want to be able to archive, or unarchive.
These methods are mandatary in such situations, and should look like this:
- (void)encodeWithCoder:(NSCoder *)coder
{
[coder encodeObject:somePropertyOrField forKey:@KeyName];
}
- (id)initWithCoder:(NSCoder *)coder
{
self.propertyName = [coder decodeObjectForKey:@KeyName1];
fieldName = [coder decodeObjectForKey:@KeyName2];
return self;
}
somePropertyOrField must be a property or a field of our class; @KeyName, @KeyName1 ..., @KeyNamen may be arbitrary names we choose.
To archive (save the object on the File System), we use:
[NSKeyedArchiver archiveRootObject:objectName toFile:@/Users/pavel/myObjectState.plist];
which create the .plist file (which a special XML-format file in iOS) at the indicated path.
To unarchive (restore an object state from a file), we use:
MyClass *newObjectName = [NSKeyedUnarchiver unarchiveObjectWithFile:@/Users/pavel/myObjectState.plist];
which initializes the new object with the corresponding values from the .plist file. Archiving and unarchiving objects in Objective-C](https://i.ytimg.com/vi/KSIU8zRi7zk/mqdefault.jpg)



