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DBMS-Database management systems - Coggle Diagram
DBMS-Database management systems
DBMS- is a software package that allows an administrator to manage 1 or more relational database
Allow
Allows Data integrity to be maintained
Good Security
Data is shared
Avoids redundancy or duplication
However
Difficult to maintain
Expensive
Contains some sort of query languages e.g SQL
Data Dictionary
Defines all data items in a database
Includes
Table names
Data types
Field Names
Field Types
Validation