Definition of DATABASE : a usually large collection of data organized especially for rapid search and retrieval (as by a computer)

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2 What is a Database? da ta base noun \dā-tə-bās, da- also dä-\ Definition of DATABASE : a usually large collection of data organized especially for rapid search and retrieval (as by a computer)

3 Components of a Database Components of a Database include tables containing a variety of data and functions that have to ability to access and manipulate the data sources.

4 Advantages of Using Databases It means all of the information is together. The information can be portable if on a laptop. The information is easy to access at any time. I' It's more easily retrievable. Many people can access the same database at the same time. Improved data security. Reduced data entry, storage, and retrieval costs.

5 Disadvantages of Using Databases Database systems are complex, difficult, and timeconsuming to design. Initial training required for all programmers and users. Suitable hardware and software start-up costs. A longer running time for individual applications.

6 SQL? SQL stands for Structured/Sequential Query Language g and is the international standard for database manipulation.

7 SQL Connection String The sql connection string consists of specific information about the data source and the means to connect to it. Pre-installed connection drivers code the connection from the program to the data source. Example of how to connect to a data source using Visual Studios will be provided.

8 SQL Queries Pre-Installed Drivers allow executable Queries to be made to the database to add, modify, access and remove data from the data sources. This queries can be implemented in the classes, at the User-End of the Program or directly in the database.

9 Examples of SQL Queries Insert into Books values ( 1984, George Orwell, Fiction, , Secker and Warburg, 7/21/1950,910,, OUT,NULL,, 0.15,21,13.99);, This executable Query enters a series of information to a database into a table called Books

10 Tables in a Database Primary Key Names of the columns in the database table

11 Information in a Database Information in the columns in the database table Column Title Table Data

12 .NET Framework The.Net Framework is a platform created by Microsoft as a programming g model to ease the building of applications for various purposes.

13 Components of the.net Framework Common Language Runtime Base Class Libraries Development frameworks and technologies

14 ADO.NET ADO.Net is a suite of classes that make data access from a variety of sources such as Microsoft SQL Server, OLE DB, and XML. ADO.Net allows data to be retrieved, stored and modified from these sources. This presentation will focus on the SQL Server implementation of a database application

15 Database Development (To Tier or not Two Tier) Depending on personal programming preference, desired design or encapsulation needs, the programming of a database can be what is considered Two-Tiered or Multi-Tiered.

16 Two-Tiered Tiered A Two Tiered programming design connects the database directly to the application for user access. Giving the user direct access to modify or insert stored data. The first tier refers to the user-end portion of the program (The GUI) and the second tier refers to the database itself.

17 Multi-Tiered Unlike the Two-Tiered approach to database access, the multi-tiered design for database implementation sets up the databases in classes and not directly though the User-End interface. This method takes longer to set-up but provides better encapsulation and security for the databases, only allowing prompted access for the end users. The multi-tiered approach is commonly used in the business environment where data privacy is crucial.

18 C# vs. Java Methods of database access are similar, and when accessing databases using both languages g and each language requires: Database Drivers Database Connections SQL Queries H h i l d However, the syntax to implement and access a database are different for both languages.

19 Implementing a Database using JAVA

20 Implementing a Database Using C#

21 Database Implementation *Presentation of the creation of a database application in Visual Studios

22 References

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