Title: Number Vs. Varchar2 Datatype
this always a better decision to
decide the datatypes of such columns keeping in mind the future
requirements.
u may come to a certain point where
u think, number datatype to be better and somewhere to varchar2.
u said number datatype which is not
always used for calculation.
actually a number datatype takes
less space on disk(actual storage space) as u define it. and as compared to
varchar2 if difference is of concern.
it's a matter of requirement of
application.
- Original Message -
From:
Arslan
Dar
To: Multiple recipients of list ORACLE-L
Sent: Wednesday, May 30, 2001 2:35
PM
Subject: Number Vs. Varchar2
Datatype
Hi list,
We are in the design phase of our new database and
eventually there a number of feilds which are actually numeric say DEPARTMENT
NUMBER or EMPLOYEE CODE (they dont contain any alphabat or special character)
,
The main decision to be made right now is to choose
the right datatype, Options ofcourse are VARCHAR2 or NUMBER, i know its better
to have varchar2 cuz its a bit flexible, but i want some expert
opinion,
can u tell me any pros and cons of having NUMBER or
Varchar2 datatype on a feild which is numeric, which may be PRIMARY KEY and
also which is NOT always used in Calculations,
which datatype is more efficient
Its Oracle 8.1.7 on NT4,
TIA,
Arslan
