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and go to "Manage Layout" from the Blogger Dashboard﷯﷯3. Click on the "Edit HTML" tab.﷯﷯4. Delete the code already in the "Edit Template" box and paste the new code in.﷯﷯5. Click "S BLOGGER TEMPLATES AND TWITTER BACKGROUNDS ?

Sunday, August 16, 2009

My_Idea_Is

A. Discuss what you have learned and understood about what Relational Database Management is.

RDBMS, a type of database management system (DBMS) that stores data in the form of related tables. Relational databases are powerful because they require few assumptions about how data is related or how it will be extracted from the database. As a result, the same database can be viewed in many different ways.

B. Define how each of the following fit and function within the framework of Relational DBMS.

Key Fields
A key field is a field or set of fields of a database (typically a relational database) table which together form a unique identifier for a database record (a table entry). The aggregate of these fields is usually referred to simply as "the key".

Database Records
A row—also called a record or tuple—represents a single, implicitly structured data item in a table. In simple terms, a database table can be thought of as consisting of rows and columns or fields. Each row in a table represents a set of related data, and every row in the table has the same structure.
In database records,these are the data that you've just gathered and to be input into a table.

Data Queries
Allow us to view data in different ways. Queries are the primary mechanism for retrieving information from a database and consist of questions presented to the database in a predefined format.

Data Types
A set of value having predefined characteristics, in relational database, this is used to recognize the field if what type of data it is.

Data Forms
Allow us to build a user friendly interface for users.Forms allows you to create and run sets of linked, interactive screens for data entry, retrieval and update. A complete set of screens, known as a form, is defined using commands. There are commands for defining what variables are on each screen, how they are displayed and edited, how the screen is to look, and for linking screens together.

Tables/Database Files

These are the key field, description type etc.

Relationships(Table Linkage)
Is when you make a table then it will link to another table.

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