ROWID's have their place. My preference is that they are used in PL/SQL
or other code as a means of quickly locating or relocating a row in a
table.
Using them procedurally at runtime is generally considered a valid use
of ROWID data types.
Storing ROWID data is generally considered a bad practice for the reasons
you mention.
Jared
"Boivin, Patrice J" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
02/21/02 10:18 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: ROWID datatype columns and primary keys
Can someone explain to me why some developers like to create ROWID
datatype
columns in their tables?
I am wondering why they sometimes do that instead of using primary keys.
I searched for info on this on the Web, but nothing.
ROWID access is probably faster than index access, I guess.
I vaguely remember my Oracle instructor saying about four years ago that
using ROWIDs was bad practice in most cases, but I can't remember exactly
why he said that.
ROWIDs are not reliable, when exports/imports take place and between
COMMITS
if many users access the same table, if the row could be dropped and
re-created.
Are there other reasons why someone might not want to use ROWID columns?
I am just fishing for opinions.
Thanks.
Regards,
Patrice Boivin
Systems Analyst (Oracle Certified DBA)
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