Hallo!!!! today we want tell you about databases...
we know you like database...
so, you must know what is databases...
Databases is a collection of integrated data logically related files and record
Need for databases
~Individual and organization get advantages to having databases
- share: in organizations from one department can be readily shared wiyh others.
- security: user are given passwords or access only to the kind of information they need.
- less data recundancy: individual department have to create and maintain their own data and recundancy result.
- data integrity: when there ae multiple sources of data, each resource may have variations.
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Database management
This software called databased management system (DBMS) for creating, modifying and gaining access to database.
DBMS consist of five subsystem:
- DBMS engine provides a bridge between logical and physical data view.
- Data definition subsystem define the logical structure of a database using a data dictionary or schema.
- Data manipulation subsystem provides tools for data maintenance and data analysis.tools include query-by-example and structured query language (SQL).
- Application generation subsystem provides tools for creating data entry form withspecialized programming languages.
- Data administration subsystem manages the dartabase.database administrations (DBAs) are computer professionals who help define processing right.
so???what you think about database???
that all for today...
see you tomorrow...
bye!!!!
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