3. CTS(Common Type System):
Two language communicate smoothly due to
CLR,has CTS. It is an integral part of the runtime &
helps to support cross-language communication.
It prevent data loss when a type in one language
transfers data to its equivalent type in other language.
Some functionality are follows:
a)Support object-oriented model
b)Specifies guidelines for different languages.
c)Supports primitive data types,such as
Boolean,Byte,Char, & Int32 etc.
4. CLS(Common Language Specification):
Common Language Specification (CLS), which is a set of basic
language features needed by many applications. The CLS rules
define a subset of the common type system; that is, all the rules that
apply to the common type system apply to the CLS,
CLS is a contact that states, how a language will interacts with
CLR.When language used CLS they are said to be managed code.
Code that targets the CLR is referred to as managed code.
Earlier CLS was '.NET Compliant Language'
All managed code has the features of the CLR-
1)Object-Oriented
2)Type-safe
3)Cross-language integration
4) Cross-language exception handling
5)Multiple version support
5. Metadata
• A metadata is the self description of a program in the
binary format. It contains the information of classes,
methods,& other elements used in a program. The
metadata is stored in a CLR Portable Executable(PE)
files.
• The Metadata describes every datatype & member of
your program.
• When code is in the run mode,CLR loads the
metadata into memory & finds information about the
classes & member
6. Assembly
• An assemblies is a self-describing binary file,which can be
either EXE or DLL file.
• All the .NET assemblies contain the definition of types,
versioning information for the type, meta-data, and manifest.
Assembly manifest:
An assembly manifest is a file that contains the metadata of
assembly, which is the information of version requirements &
security identity. Manifest store in PE file.
The manifest contains:
7. Strong Name: The assembly's name, version, culture, optional
processor architecture, and public key (for shared assemblies)
File Contents :Name and hash of all files in the assembly
Resource List: Icons, images, text strings and other resources
contained in the assembly
Security: Permissions required for the assembly to run properly.
These different version can be executed at the same time without
interfering with each other.
8. Operating SystemOperating System
Common Language RuntimeCommon Language Runtime
.NET Framework (Base Class Library).NET Framework (Base Class Library)
ADO .NET and XMLADO .NET and XML
ASP .NETASP .NET
Web Forms Web ServicesWeb Forms Web Services
Mobile Internet ToolkitMobile Internet Toolkit
WindowsWindows
FormsForms
Common Language SpecificationCommon Language Specification
C++C++ C#C# VBVB PerlPerl J#J# ……
VisualStudio.NETVisualStudio.NET
9. Database
• DATABASE- A shared collection of logically
related data (and a description of this data),
designed to meet the organization needs of
an organization
The Database Management System (DBMS) - software
that enables users to define, create and maintain the
database and provides controlled access to the
database
10. Advantages
• Sharing of data
• Enforcement of security
• Enforcement of development and maintenance
standards
• Reduction of redundancy
• Avoidance of inconsistency across files
• Maintenance of integrity
• Data independence
11. Functions of a DBMS
• Data storage, retrieval, update
• A user-accessible catalog
• Transaction support
• Concurrency control
• Recovery services
• Authorization services
• Integrity services
• Data independence
• Utility services
12. Data Conti..
• Entity: A thing of significance about which
information needs to be known.
• The characteristics that describe or qualify an
entity are called attributes of the entity.
13. Users
• There are a number of users who can access or
retrieve data on demand using the applications and
interfaces provided by the DBMS.
• Each type of user needs different software capabilities:
• – The database administrator (DBA) is the person or
group in charge of implementing the database system
within the organization.
• – The end users are the people who sit at workstations
and interact directly with the system.
14. • – The application programmers interact with the
database by accessing the data from programs written
in high-level languages such as Visual Basic or C++.
Example::
Now we have a Table and we take few operation upon
a table.
Table Name:: College_Info
Column Name Data Type Allow Null
Cname nvarchar(50) checked
CLocation nvarchar(50 checked
Courses nvarchar(50 checked
15. Cname CLocation Courses
Techno India College
EM4/1,Sector-
V,SaltLake,Kolkata-
700091
B.Tech, M.Tech, M.C.A,
B.C.A
Institute Of Engineering
& Management
DN-35,Salt Lake,Sector-
V,Kolkata-700091
B.Tech, M.Tech, M.C.A,
B.C.A, B.B.A, M.B.A
Netaji Subhash
Engineering College
Goria,Pach
Pota,Kolkata-700152
B.Tech, M.Tech, M.C.A,
B.C.A
Siliguri Institute of
Technology
Siliguri,West
Bengal,Darjeeling
B.Tech, M.Tech, M.C.A,
B.C.A, B.B.A, M.B.A
Saroj Mohan Institute
of Technology
GuptiPara,Hoogly
B.Tech, M.Tech, B.B.A,
M.B.A
Haldia Institude of
Technology
Haldia,Hatiberia,Purba
Midnapur,W.B,Pin-
721649
B.Tech, M.Tech, M.C.A,
B.C.A, B.B.A, M.B.A
16. Insert Statement:
insert into College_Info(Cname,CLocation,Courses)
values(Cname, Clocation,Courses)
Update Statement:
Update College_Info set Clocation=‘xyz’,Courses=‘XYZ1’
where Cname=‘DotNet’
Delete Statement:
Delete from College_Info where Cname=‘DotNet’
Select Statement:
Select * from College_Info where Cname=‘Siliguri Institute of
Technology’
17.
18.
19. Store Procedure:
Using store procedure we may insert value into Table:
create procedure [dbo].[Store_College]
( @p_Cname nvarchar(50),
@p_CLocation nvarchar(50),
@p_Courses nvarchar(50)
)
as
begin
begin try
begin transaction
** insert into College_Info(Cname,CLocation,Courses)
values(@p_Cname,@p_CLocation,@p_Courses)
20. commit transaction
end try
begin catch
rollback transaction
insert into error_log(LogDate,Source,ErrMsg)
values(getdate(),'Store_College',error_message())
end catch
end
In Update, Delete Statement we write Update & Delete statement
In ** part.
21. Summery
CLS(Common language specification),CTS(Common Type
System).
Managed code.
Assemblies.
Basic Database concept, Insert Update Delete Command.
Store Procedure application.
