Database management system 1
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This document discusses database management systems (DBMS). It defines a DBMS as software used to create and maintain databases. It describes the functions of a DBMS as organizing, storing, accessing, modifying, deleting, and securing data. Some key components are the data dictionary, data language, query language, and database administrator. The document also outlines features, roles, advantages, disadvantages, and types of DBMS.
Database management system 1
- 1. Database managementDatabase management systemsystem inin management informationmanagement information system.system. PresenteD by Hari Priya.r
- 2. DefinitionDefinition DBMS: It is a set of system software package, that are used to create and maintain data in database. It is used to organize, store and access the data in the database.
- 3. functions of Dbmsfunctions of Dbms Organize data Store data Sort data Access data Modify and delete data Redesign by reassigning storage space Data security Data integration
- 4. Components of dbmsComponents of dbms Data dictionary Data language Teleprocessing monitors Application development tools Security software Query language Database administrator Web-based software Multi-platform
- 5. features of dbmsfeatures of dbms Querying ability Replication and duplication Rule enforced Security Computation Logging access Automation and optimization
- 6. role of dbmsrole of dbms Data definition Data security Auto-trials
- 7. advantagesadvantages Decision making Searching and correlating data Minimize duplication of data Separate and integrity Helps in data sharing across servers
- 8. disadvantagesdisadvantages Very expensive Highly specialized personnel are needed Centralization of data makes organization vulnerable Data security gets impossible
- 9. types of databasetypes of database structurestructure Hierarchical Network Relational multi-platform object oriented
- 10. Types of daTabaseTypes of daTabase Operational Distributed External End-user