Normalization is a database design technique which organizes tables in a manner that reduces redundancy and dependency of data. It divides larger tables to smaller tables and links them using relationships. In this tutorial, you will learn. Database Normal Forms. ChaPter a: Creating and Using Databases with Microsoft Access A-9 A query allows you to select what part of the data you want to see onscreen. Create a query when you find you need to occasionally view only part of the data. When you run a query, only the data that satisfies the criteria for the query appears onscreen. You can edit the data.
What is Database Design?
Database Design is a collection of processes that facilitate the designing, development, implementation and maintenance of enterprise data management systems
It helps produce database systems
Free Database Design Tutorial
The main objectives of database designing are to produce logical and physical designs models of the proposed database system.
The logical model concentrates on the data requirements and the data to be stored independent of physical considerations. It does not concern itself with how the data will be stored or where it will be stored physically.
The physical data design model involves translating the logical design of the database onto physical media using hardware resources and software systems such as database management systems (DBMS).
In this tutorial, you will learn-
Why Database Design is Important ?
Database designing is crucial to high performance database system.
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Apart from improving the performance, properly designed database are easy to maintain, improve data consistency and are cost effective in terms of disk storage space.
Note , the genius of a database is in its design . Data operations using SQL is relatively simple
Database development life cycle
The database development life cycle has a number of stages that are followed when developing database systems.
The steps in the development life cycle do not necessary have to be followed religiously in a sequential manner.
On small database systems, the database system development life cycle is usually very simple and does not involve a lot of steps.
In order to fully appreciate the above diagram, let's look at the individual components listed in each step.
Requirements analysis
Oracle Database Tutorial PdfDatabase designing
ImplementationDatabase Tutorial For Beginners Pdf
Two Types of Database TechniquesOracle Database Design Tutorial Pdf
Database Design Tutorial For Beginners
Let's study them one by one
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