Interested to Buy Any Domain ? << Click Here >> for more details...
What are the differences between a sys and system user and
what are the extra privileges available to the sys user?
- 1 Answers
- 5894 Views
- Wipro, I also Faced
- E-Mail Answers
Answer / sandip patil
SYS is the owner of the oracle dictionary.
THE DEFAULT superuser or like a 'root' in a oracle database.
Oracle strongly recomends NOT TO use SYS for any regular
adminstration tasks.
please have a look here
http://www.orafaq.com/usenet/comp.databases.oracle.server/20
03/08/06/0511.htm
system is just another account with administrative privs (
by default cannot start/shut databases)
quoting docs
"The Oracle user SYS owns all base tables and user-
accessible views of the data dictionary. Therefore, no
Oracle user should ever alter (update, delete, or insert)
any rows or schema objects contained in the SYS schema,
because such activity can compromise data integrity. The
security administrator should keep strict control of this
central account."
"When a database is created, the user SYSTEM is also
automatically created and granted the DBA role.
The SYSTEM username is used to create additional tables and
views that display administrative information, and internal
tables and views used by various Oracle options and tools.
Never create in the SYSTEM schema tables of interest to
individual users."
| Is This Answer Correct ? | 1 Yes | 1 No |
5. Display full details for the creditor/s who has received the single largest payment. Do not use a table join or set operator anywhere in your query.
5. Display full details from the ORDER_LINE table where the item number is (first condition) between 1 and 200 (no > or < operators) OR the item number is greater than 1000 AND (second condition) the item cost is not in the list 1000, 2000, 3000 OR the order number is not equal to 1000.
What privilege is needed for a user to create indexes in oracle?
How to delete all rows a table in oracle?
2. Display the item number and total cost for each order line (total cost = no of items X item cost). Name the calculated column TOTAL COST.
What is the effect of setting the value "CHOOSE" for OPTIMIZER_GOAL, parameter of the ALTER SESSION Command ?
How to shutdown your 10g xe server from command line?
what is Materialized view? What is a snapshot? what are the similarities and differences between Materialized views and snapshots?
How to run queries on external tables?
What are various constraints used in SQL?
how will I find the first 5 highest salaried employees in each dept in oracle.
Please send me Informatica 8.1 certification dumps, my mail id mona85gupta@gmail.com
Oracle General 
