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Data Organization and Data Control - Coggle Diagram
Data Organization and Data Control
Data Input and Sources of Error
devices
Scanners
sound recorders
senseors
digital video cameras
Keyboards
error
Data source error
Transcription error
Transposition error
Database Management System (DBMS)
Application of DBMS
Database server
Small office and personal use
Basic Functions to Organize Tables
Create table
Modify table
Delete table
Manage Records
Add a new record (Insert)
Delete existing records(Delete)
Modify existing records(Update)
Browse records(Select)
Essential Features
Filter
Sort
Index
Query Forms
Data Entry Forms
Reports
Data Hierarchy
Record
Table
Field
Datebase
Data Control
Field presence check
Field length check
Range check
Fixed value check
Format check
Type check
Check digit
File Access Modes
Sequential access mode
Direct access mode
Sequential access mode