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November 8 2010 2 08 /11 /November /2010 14:18

Crystal and Reporting Services FAQ Part  2

Get Interview tutorials and videos on .NET 3.5, 4.0, Pessimistic, Optimistic, Locking, SQL Server, CAS, Security, WCF, SharePoint, Azure, OOPS and many more on www.questpond.com

 

Introduction

We have two IIS application ‘Reports’ and ‘Reportserver’ what do they do ?

Can you explain Report definition language (RDL) file in reporting services?

How can we consume reports in ASP.NET?

Can you explain the difference between private and shared data sources?

How does reports caching in reporting services work ?

How does reports caching in reporting services work ?

What are the major differences between Crystal and SQL reporting services?


Introduction

This FAQ will give you a quick start for two report giant’s crystal and reporting services.
If you find this article useful or you think I need improvements please send me a message at http://www.questpond.com  . I will definitely consider your suggestions for better improvements.

To view Crystal and Reporting Services FAQ Part 1 Click the below link

CrystalReporting.aspx

 

We have two IIS application ‘Reports’ and ‘Reportserver’ what do they do ?

When you install reporting services there are two virtual directories created as shown in the figure below.

 

 

 

 

Figure 19 : - IIS Applications for reports


The ‘Reports’ virtual directory is like an admin. If you browse to http://yourpcname/reports/home.aspx  page you can view, edit properties and display reports. We have numbered the below figure. 1 à We can browse reports and see the output of reports. 2 à We can upload a RDL file directly in the report’s database. 3 à Using the report builder link we build new reports. 4 à Using the properties we can do role assignment. 5 à Using subscription link we can add new outputs (FTP, Folder etc) to subscribe to the reports. 6 à Site settings help us to decide how many numbers of snapshots we want in the history, report time out execution, report execution logging, scheduling, manage jobs and security settings.

 

 

Figure 20 :- Reports Admin



The second virtual directory is the ‘ReportServer’ this helps us to use browse reports and use the same in ASP.NET code using URL methodology , try browsing to http://yourpcname/reportserver/  you can easily figure out what this virtual directory is all about.

 

Can you explain Report definition language (RDL) file in reporting services?

RDL is an XML description of a report in reporting services. So basically the RDL file has the XML grammar which describes a reporting services report. Below figure ‘Snip of RDL file’ shows a simple snippet of a RDL file.

 

 

Figure 21 : - Snip of RDL file


 

What is the basic process of making a report in reporting services?
Here are the basic steps which will help you in creating reports in reporting services:-
• Open Visual studio 2005 à File à New project à Select ‘Business Intelligence Reports’ à Select Report Server project.
• When the project is created in the solution explorer you will see two folder ‘Shared data resources’ ( we will come to data sources in the coming questions) and ‘Reports’. Right click the ‘Reports’ folder and click add new reports.
• You need to give credentials in the wizard. Once done it pops up a query builder. Specify the report query in the query builder and go next.
• Wizard then helps you to select the report type and some other features. Next , next and you should see a RDL file in your ‘Reports’ folder.
• Click on the view menu and select tool box and you should be able to design the report.
• Till now we are only in the design mode of report. As said previously all reports meta-data are stored in SQL Server database ‘ReportServer’. In order that the report’s meta-data gets saved in database we need to publish the report.
• To publish the report we need to specify the IIS report path. So right click on the report project, select properties and specify the ‘TargetServerURL’ property.

 

 

Figure 22:- TargetServerURL property



• Once we have specified the ‘TargetServerURL’ property we need to deploy the project. So right click on project and click ‘Deploy’

 

 

Figure 23: - Deploying reports



• You can now view your report using http://localhost/Reports/Pages/Folder.aspx  URL.

 

How can we consume reports in ASP.NET?


There are three famous ways of calling reporting services report in ASP.NET:-
• Using URL way to access reports.
• Using reporting web service to programmatically access reports.
• Using report viewer control.

URL way

 

This is the most basic way of accessing reports. We specify the URL as shown below which then displays the report on the browser. Below is a basic format of how to display a report using the URL methodology. 1 à This is the IIS report application. 2 à This is the project name or the project folder in which the report resides. 3 à This is the report name. 4 à This is the command to the reporting service of what to do. In this case we are saying render the report.

 

 

Figure 24: - Basic URL



If we want to get the report in PDF format we need to use the ‘Format’ parameter.

 

 

Figure 25: - Generate the report in PDF format



If we want to pass parameters to the report we can do something as shown in the figure ‘Pass parameters to the report’. In this scenario we have passed the ‘Category’ parameter.

 

 

Figure 26: - Pass parameters to the report


Consuming reporting services web service


If you look at the architecture of reporting service all reports are exposed through XML i.e. Web services.You can see the web service using this URL http://localhost/ReportServer/ReportService2005.asmx. In localhost you need to put the server name or IP address. So below are the steps to display reports using web service.
Step 1 à First add the web service using http://localhost/ReportServer/ReportService2005.asmx in your ASP.NET project.
Step 2 à We need to consume the web service and use it. Below is the code snippet which shows how the reporting service object is used. 1 à You can see the web service references to ‘reportservice2005.asmx’. 2 à We have the named the web service as ‘Localhost’, so you can see we have imported the web service. 3 à We need to create object of ‘ReportingService2005’ class. 4 à We need to set the credentials of the reporting object. 5 à In this we will display which reports are present in the reporting server database. So we use the ‘ListChildren’ method to get the reports from the web service and then loop to display the same. 6 à This sample code should display the reports present in the reporting service.

 

 

Figure 27: - Display reports in reporting server



The above example is a sample of how to use the reporting web service. If you want to get how many input parameters the report has we need to use ‘GetReportParameters’ method, if we want to display the report we use the ‘Render’ function. There are many other function and methods which we have not discussed to keep the chapter simple and to the point. Please experiment around the reporting web service object for new methods and functions.

Reportviewer control


ASP.NET 2.0 comes with crystal report viewer control. You can drag and drop the control on the ASPX page and set the properties. Below figure shows how the ‘ReportviewerControl’ looks like and how we can set the properties to view the report.

 

 

Figure 28:- ReportViewerControl in action


Can you explain the difference between private and shared data sources?

 

Private data source is used by single report only while shared data sources are shared between reports. As a practice it is good to have shared data source so if you want to change anything you need to change only on one data source.

 

How does reports caching in reporting services work ?


As said previously reporting services has two main databases ‘ReportServer’ and ‘ReportServerTempDB’. Below figure ‘Reporting Services Caching’ shows how caching works in reporting services. Client first sends a request to the reporting service for report. Reporting processor gets data from the database and the report format from the ‘reportserver’ database. Both these elements are then used to create ‘Intermediate report format’. This intermediate format is saved in ‘ReportServerTempDB’. This intermediate format is for a particular user and for a session. So if the user generates the same report he will get a cached version. If the report is having parameters then there are different cached versions of report for every parameter combination. Cached versions expire after particular schedule, when reports are modified, deleted or redeployed.

 

 

Figure 29: - Reporting services Caching



In order to set the caching properties browse to a particular report using http://localhost/reports/  à click on properties à and go to execution tab. Below figure ‘Caching options’ shows different conditions on which you can define caching strategy.

 

 

Figure 30:- Caching strategy


What are the major differences between Crystal and SQL reporting services?

 

Ease of hosting reports: - Using the URL technology in RS we can host reports more easily than in crystal report where we need to make a UI for the same.

Supporting platforms: - Crystal can run on windows, IBM and sun while RS (reporting services) can run only on windows environment.

Client tools: - In reporting services we have Business intelligence ( BI ) and development studio while in crystal its Report designer.

Caching: - This achieved in crystal by using cache server while in reporting services it’s stored as snapshots in Reportserver database.

Export formats:-
In crystal we have HTML,PDF,Excel,XML,Word , PDF , RTF , CSV, text files while in SQL Server 2005 we have all the formats above it also gives capability to extend custom reporting formats.

Data sources:- Crystal support more data sources while RS only supports Microsoft and oracle data sources. Crystal supports ADO, COM, Database excel Access, Exchange, NT, Xbase, JDBC, File system and Paradox. RS supports only SQL Server, Oracle, ODBC, OLEDB and you can also extend additional data sources which does not exists in crystal reports.

Version issues: - One of the main issues faced in crystal is it have different versions which makes it difficult to use, while RS comes with SQL Server minimizing the version issue.

Web server support: - Crystal can run on IIS 5/6, Apache, lotus etc while RS works only with IIS 5.0 and above.
 

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Explain the implicit and explicit conversion of data types with examples?( .NET interview questions on data type)

.NET interview questions: - What is Reflection its implementation and practical uses?

What is downcasting and upcasting? (.NET interview questions with answers)

.NET interview questions: - How to decide on the design consideration to take a Data grid, data list or repeater?

.NET interview questions: - If we want to update interface with new methods, what is the best practice?

.NET interview questions: - How does selection sort algorithm works?

XML(.NET) interview questions: - What is XML?

.NET Interview questions: - If a validation is very complex what will you do?

.NET interview questions: - How can we stop the class from further inheriting?

XML (.NET) Interview questions :- Explain simple Walk through of XmlReader.

.NET interview questions : - How can we improve performance of .NET and show the difference between .NET 1.X, 2.0, 3.0, 3.5 and 4.0?

How to convert string to ENUM value ?( .NET interview questions with answers)

.NET architecture interview questions series: - What is mean by modeling language?

.NET architecture interview questions : - What are benefits and Limitation of using Viewstate, hidden frames and Cookies?

.NET interview questions: - What is GAC (Global Assembly Cache)?

.NET interview questions: - Explain Nuget?

.NET Testing interview questions: - What is the difference between Unit testing, Assembly testing and Regression testing?


.NET interview questions: - What is Code Access Security (CAS) and how does it work? Is CAS supported in .NET 4.0?


.NET interview questions: - What are the advantages /disadvantages of lazy loading?


.NET interview questions: - What is the use of DEBUG directive?


.NET testing interview questions: - What is Mock testing and how to implement it?


.NET interview questions: - What is the difference between DEBUG and Release?


.NET testing interview questions: - How can we UNIT test private methods using VSTS? Is it good to practice to UNIT test Private methods?


Explain 3 layer architecture ( .NET Interview questions)?


.NET interview questions : - What is a delegate and how can we create a delegate? What is a multicast delegate?


ADO.NET interview questions: - How to add/remove row is in “Data Table” object of “Dataset”? How to load multiple tables in a Dataset & adding relation between tables in a Dataset?


What is the difference between Array, ArrayList and List?( .Net Interview questions)

.NET interview questions: - How to implement DTC in .NET?
.NET interview questions: - What is an Interface and what are abstract classes

.NET interview questions: - Interface vs. abstract class

.NET interview questions: - How to implement practically Lazy loading in .NET?


.NET interview questions: - How can we handle exceptions in .NET? What if we do not catch the exception?

.NET interview questions based on Projects.


.NET interview questions: - What is shadowing? What is the difference between Shadowing and Overriding?

.NET interview questions: - All about Design Patterns in .NET


.NET interview questions: - How can we improve performance of .NET/ASP.NET/SQL Server?

.NET interview questions: - What benefits does sealed keyword provide?


.NET Architecture UML interview question


.NET interview questions: - How to maintain performance and can clean unmanaged objects?


.NET interview questions: - Explain ENUM and its benefits? What is the use of Flagsin ENUM?

.NET interview questions: - How to create a windows service using .NET?

.NET interview questions: - Explain in details about Indexer and can we have static indexer in C#?

.NET interview questions: - What is the difference between arraylist and list? Are Arraylist faster or Arrays?

.NET interview questions: - What is Native Image Generator (Ngen.exe)? Does NGEN.EXE always improve performance?

.NET OOPS interview questions: - What is OOP? What are different properties provided by Object-oriented systems?

.NET OOPS interview questions: - How abstract with only abstract method is it different from interfaces? Also mention best practice to update interface with new methods?

.NET interview questions: - What is the difference between delegate and events? Can we have return type, access modifiers and shared events?

.NET interview questions: - What is Manifest? Where is the version information stored of an assembly? Is versioning applicable to private assemblies?

.NET Generics interview questions: - Explain Generics and concept of Generic Collection in .NET?

How to learn .NET: - In parent-child relationship which constructor will fire first and in which instances you will declare a constructor private?

Basics of .NET and learning tutorials on CTS and CLS


Online resource to learn .NET on Reflection and Dynamic

Online guide to learn .NET for Object initializer in C#?

QuestPond for Freshers on IL code, JIT, CLR, CTS, CLS and CAS

QuestPond: Interview Questions and Answers on AJAX and how does it help?



ASP.NET Interview Questions & Answers Article










MVC Interview Questions And Answers Article

 

(MODEL VIEW CONTROLLER)MVC INTERVIEW QUESTIONS AND ANSWERS

 

MVC INTERVIEW QUESTIONS WITH ANSWERS VIDEO: – WHAT IS WEB API HOW TO IMPLEMENT THE SAME?

 

ASP.NET MVC  4 INTERVIEW QUESTIONS WITH ANSWERS: - WHAT IS BUNDLING AND MINIFICATION IN MODEL VIEW CONTROLLER ?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS :- IS IT POSSIBLE TO RETURN VALUES INSTEAD OF ACTIONRESULTS?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS :- WHAT ARE THE ACTIONRESULTS AVAILABLE IN MVC?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS:-HTML.PARTIALVSHTML.RENDERPARTIALVSHTML.RENDERPAGE IN MVC

MVC VS ASP.NET ( MVC INTERVIEW QUESTION WITH ANSWERS )?

 

HOW CAN WE DETECT THAT A MVC CONTROLLER IS CALLED BY POST OR GET ? ( ASP.NET MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

WHAT ARE THE DIFFERENT WAYS BY WHICH YOU WILL GET FORM DATA IN CONTROLLER? ( MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

WHAT IS THE DIFFERENCE BETWEEN PRESENTER AND CONTROLLER IN MVC?(MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

LEARN MVC (MODEL VIEW CONTROLLER) STEP BY STEP IN 7 DAYS – DAY 4

 

MVC Interview questions and answers PDF

 

MVC interview questions with answers

 

ActionResult vs. View() vs. ViewResult :- MVC interview questions with answers

Explain Areas in MVC?( MVC interview questions with answers)

 

Can you explain the purpose of ViewModel in MVC?( ASP.NET MVC Interview questions with answers)

ASP.NET MVC interview questions: - What are Filters in MVC?

What are areas in MVC?( MVC Interview questions with answers)

Explain the concept of View Model in MVC? 

Exception Handling in MVC

Explain MVC application life cycle?

100 MVC Interview question PDF download released , Enjoy

How can we use two (multiple) models with a single view?(MVC Interview questions)

MVC HTML.Form vs Ajax.Form – MVC interview questions with answers

Learn Microsoft Business intelligence step by step – Day 1

Can you create TempBag just like ViewBag?( MVC Interview questions)

MVC Unit Testing Unleashed

MVC and .NET learning tutorials for components of MVC and how do you perform unit testing in MVC?

Explain MVC model binders ? ( ASP.NET MVC interview questions)

Explain the difference between layout and master pages ? (MVC Razor interview questions) 


ENTITY FRAMEWORK INTERVIEW QUESTIONS ARTICLE


Windows Workflow Foundation(WWF) interview questions with answers Article

XML Interview Questions With Answers Article


Explain XML,DTD and XSL?(XML interview questions with answers)

HTML 5 Interview questions With Answers Article

HTML 5 interview questions with answers for LocalStorage and SessionStorage

 

How is the page structure of HTML 5 different from HTML 4?( HTML 5 Interview questions with answers)

 

What is datalist in HTML 5 ( ASP.NET HTML interview questions)?

 

What are the different new form element types in HTML 5?( ASP.NET HTML 5 interview questions with answers)

 

What is output element in HTML 5?( ASP.NET HTML 5 interview questions)

 

What is the difference between Canvas and SVG graphics?(ASP.NET HTML 5 interview questions with answers)

 

ASP.NET HTML 5 interview questions on SVG and Canvas

ASP.NET HTML5 interview questions with answers

What are web workers and why do we need them ?( ASP.NET HTML interview questions with answers)

 

Why do we need HTML 5 server-sent events? (ASP.NET HTML interview questions)

How can we add and remove data from local storage?(ASP.NET HTML 5 interview questions)

What is local storage concept in HTML 5? ( ASP.NET HTML 5 interview questions)

What is the difference between local storage and cookies? ( ASP.NET HTML 5 interview questions)

What is WebSQL?( ASP.Net HTML 5 interview questions)

 

What is session storage and how can you create one?( ASP.Net HTML 5 interview questions with answers)

 

What is application cache in HTML5?( ASP.NET HTML 5 interview questions with answers)

ASP.NET HTML 5 Application cache interview questions with answers

 

Explain the term cascading in style sheet ? ( CSS Interview questions)

What is difference between DIV vs SPAN in HTML ?( ASP.Net Interview questions)

HTML 5 Canvas Interview questions: - Canvas in HTML 5.

QuestPond’s interview questions and answers on HTML 5

 

Learn HTML 5 in 3 days – Day 1

 

 

 

Dotnetspider Questions And Answers Article

 

 

What is downcasting and upcasting ? ( .NET interview questions with videos)

 

What is the difference between String vs string? ( C# interview questions) ?

 

 

JAVASCRIPT INTERVIEW QUESTIONS WITH ANSWERS ARTICLE

 


3 IMPORTANT JAVASCRIPT IMPORTANT INTERVIEW QUESTION WITH ANSWERS