Matakuliah
Tahun
Versi
: M0184 / Pengolahan Data Distribusi
: 2005
:
Session - 22
DISTRIBUTED DATABASE DESIGN AND
ADMINISTRATION
DISTRIBUTED DATABASE
ADMINISTRATION
OBJECTIVES
• Database administration and data
administration
• Local database administration
• The effect of distribution on database
administration
• Administration function
• Meta data management
Local Database Administration
• Database administration refer to
administration of the local DBs
• Database administrator (DBA) responsible
for the management of DB system
throughout the entire software life cycle
Data Administration
• Data administration refers to administration at a
global level
• Encompassed the entire data resources from
mainframe to micro
• Increasingly a highly technical, specialist
function related to the physical management of a
single DB or group
• Data Administrator (DA) will perform on global
level
Distributed DB Administrator (DDBA)
• Handling management of DB system
• Handling distribution of the data
• DDBA requires tools to assist in the
optimal allocation of base relation, of
replication, etc.
• Be able to monitor performance in order to
tune the system
Administration Function
DBA of centralized DB
• Design and implementation of the logical and
physical DB design
• Design and implementation of external DB
schema in consultation with local users
• Implementation of local security and integrity
• Local DB tuning and performance monitoring
• Planning and implementation of Local DB reorganization
• Documentation of local DB and schema
Administration Function Cont’d
DBA of Distributed DB
• Same function with centralized DBA
• Definition of those portion DB which are to be
contributed to the global DB
• Mapping rules between those fragments and the
local data
• Conversion rules between local and global data
• Specification of security and integrity constraints
on the fragments which are peculiar to the global
level
Administration Function Cont’d
Data Administrator (DA)
• Documentation of the global data resource
• Establishment and monitoring of standards for data
naming, ownership, etc
• Liaison with global end-user, management, data
processing
• Conflict resolution between different user group
• Definition of global security and integration
• Development of data resource plan
• Definition of global schema
• Promotion of data sharing
Meta-data Management
• Local system catalogues
- centralized catalogue
- fully replicated catalogues
- distributed catalogue
• Global data dictionary