Interested to Buy Any Domain ? << Click Here >> for more details...
what are the disadvantages of hierarchial database over
RDBMS?
- 1 Answers
- 13096 Views
- TCS, I also Faced
- E-Mail Answers
Answer / manjeet kumar
The disadvantages of a hierarchical database are:
·lack of flexibility (non-hierarchical relationships are
awkward to represent; redundancy may be required),
·poor performance for non-hierarchical accesses,
·lack of maintainability (changing relationships may
require physical reorganization of data).
| Is This Answer Correct ? | 11 Yes | 9 No |
Difference between primary key and unique key ?
77 Answers Accenture, B2B Software Technologies, Cognizant, HP Finsoft, IndiaNIC, Karomi Technology, Keane India Ltd, L&T, Onward eServices, R Systems, Shakti, Techtic Solutions,
what is normalisation?what are its uses?
find out first highest salary?
10 Answers Verinon Technology Solutions,
How to Select second Maximum salary in a Table ?
What's dateware house and what's clustor with practicle example
What is oracle datasource?
What is memory advisor in Oracle?
Explain temporal data types in oracle
What is the data pump import utility?
t1 col1 col2 nishi 5000 lucky 6700 akash 7000 i want that a query that when i insert 7000 it will show me data already present and data will not insert. if data is not present it will insert.
What are the different types of failures that occur in Oracle database?
Is primary key = unique key,not null? If yes,please explain IF No,please explain
Oracle General 
