I have done oracle 10g. I need a project knowledge. So if u
please send a project how it should be done,Or you can send
email link. I will be very grateful to u.
suppose we have a table in which 200 rows. i want to find
101 row ? what the query....
and how we find 4th and 5th highest salary and 1 to 10
highest salary
How would you go about increasing the buffer cache hit
ratio?
0. Explain the difference between a hot backup and a cold
backup and the benefits associated with each
1. You have just had to restore from backup and do not have
any control files. How would you go about bringing up this
database?
2. How do you switch from an init.ora file to a spfile?
3. Explain the difference between a data block, an extent
and a segment.
4. Give two examples of how you might determine the
structure of the table DEPT.
5. Where would you look for errors from the database engine?
6. Compare and contrast TRUNCATE and DELETE for a table.
7. Give the reasoning behind using an index.
8. Give the two types of tables involved in producing a star
schema and the type of data they hold.
9. What type of index should you use on a fact table?
10. Give two examples of referential integrity constraints.
11. A table is classified as a parent table and you want to
drop and re-create it. How would you do this without
affecting the children tables?
12. Explain the difference between ARCHIVELOG mode and
NOARCHIVELOG mode and the benefits and disadvantages to
each.
13. What command would you use to create a backup control
file?
14. Give the stages of instance startup to a usable state
where normal users may access it.
15. What column differentiates the V$ views to the GV$ views
and how?
16. How would you go about generating an EXPLAIN plan?
after tell procedure whole code he asked can i write the
same way in a function
135
write a procedure to print a statement or number not
using "dbms_output.put_line" package.write a procedure
instead of it using procdure name as "print"
ex:-
declare
a number:=2;
begin
print(a);
end;
/* when U type above procedure 2 have to should be printed*/
If i can use sys.check_constraints to display my constraints
from my database using sql server 2005, how can i display
then if i am using sql server 2000????
230
How well can multiple sessions access the same data
simultaneously ?
109
Does it possible to pass object (or) table as an argument
to a remote procedure?
a table has 2 classifications
1)liabilities
2)earnings
this liabitity has 2 elements with 2 input values
and
the earnings have 2 elements with 2 input values
i wrote a query so that my input is
liability savings amount1 amount2
xxxx null xxxxxx 0
xxx1 null xxxxx1 0
null yyyy 0 yyyy
null yyy1 0 yyy1
my problem is
--when i developed a report(d2k) with this data
my o/p is
liabilities,amount1,savings,amount2
xxxx xxxxxx
xxx1 xxxxx1
yyyy yyyy
yyy1 yyy1
how could i move this savings,savings values 2 palces up.
can any body provide me witha better solution
How would you go about increasing the buffer cache hit
ratio?
0. Explain the difference between a hot backup and a cold
backup and the benefits associated with each
1. You have just had to restore from backup and do not have
any control files. How would you go about bringing up this
database?
2. How do you switch from an init.ora file to a spfile?
3. Explain the difference between a data block, an extent
and a segment.
4. Give two examples of how you might determine the
structure of the table DEPT.
5. Where would you look for errors from the database engine?
6. Compare and contrast TRUNCATE and DELETE for a table.
7. Give the reasoning behind using an index.
8. Give the two types of tables involved in producing a star
schema and the type of data they hold.
9. What type of index should you use on a fact table?
10. Give two examples of referential integrity constraints.
11. A table is classified as a parent table and you want to
drop and re-create it. How would you do this without
affecting the children tables?
12. Explain the difference between ARCHIVELOG mode and
NOARCHIVELOG mode and the benefits and disadvantages to
each.
13. What command would you use to create a backup control
file?
14. Give the stages of instance startup to a usable state
where normal users may access it.
15. What column differentiates the V$ views to the GV$ views
and how?
16. How would you go about generating an EXPLAIN plan?
40
What action do you have to perform before retrieving data
from the next result set of a stored procedure ?
I have done oracle 10g. I need a project knowledge. So if u
please send a project how it should be done,Or you can send
email link. I will be very grateful to u.
4
hello.....
i am an comp science engineering graduate planning to do
ORACLE certification in PLSQL 9i. just wanted to know whats
the possibility getting job is their openings???? is it
worth doin that course n certification
44
Hi,
I am new in oracle(SQL), could anyone help me in writing a
correct SQL.
Below is the table structure.
Table: Subsc
Fields:
1. Sub_no (this field will hold values of subscriber nos,
for e.g. S111111, S222222, S333333, S444444, etc.)
2. s_status (this field will hold values for different
status of subscriber, for e.g. 'A', 'S', 'C', etc.)
3. cus_id (this field will hold values of bill nos for e.g.
11111111, 22222222, 33333333, 44444444, etc.)
Table: Bill
Fields:
1. Bill_no this field will hold values of bill nos for e.g.
11111111, 22222222, 33333333, 44444444, etc.)
2. b_status = (this field will hold values for different
status of bill for e.g. 'O', 'C', 'S', etc.)
Note:
1. The Sub_no is a Primary key of Subsc table.
2. The cus_id is a foreign in Subsc table (referred from
Bill_no field of Bill table)
3. The Bill_no field is the Primary key of Bill table.
Query A --> I wrote a query to select cus_id/Bill_no which
is in status open (b_status = 'O') and having more than two
active subscriber (i.e. S_status = 'A') in it ( i.e. more
the two subscribers in same bill).
select s.cus_id
from subsc s
where exists (select 1 from bill
where bill_no = s.cus_id
and b_status = 'O')
and s_status = 'A'
group by s.cus_id
having count(sub_no) = 2
Problem : The above query will give the cus_id (or rather
bill_no) which are in open status (b_status ='O) and which
are having TWO ACTIVE Subscribers (s_status ='A') in it.
However, this query will also lists the cus_id/bill_no
which are having more than TWO subscribers in it
(but only two subscriber will be in Active status (s_status
= 'A') and the others will be in s_status = 'C' or s_status
= 'S'.
Help needed: I want to write a query which will fetch ONLY
the cus_id/bill_no which are in open status (b_status ='O')
and which are having ONLY TWO ACTIVE subscribers (s_status
='A') in it.
B--> If I include the sub_no in the above query then NO row
are returned.
select s.cus_id, s.sub_no
from subsc s
where exists (select 1 from bill
where bill_no = s.cus_id
and b_status = 'O')
and s_status = 'A'
group by s.cus_id, s.sub_no
having count(sub_no) = 2
Help needed: I want to modify the above query which will
fetch ONLY the cus_id/bill_no which are in open status
(b_status ='O') and which are having ONLY TWO ACTIVE
subscribers (s_status ='A') in it ALONG with the sub_no.
Thanks a lot in advance.
Regards,
Nitin
156
what is the difference between varray and table data
type..please expalain with some examples...
under what situation you will go for varray..instead of
index by table...
Did you received any Funny E-Mails from your Friends and like to share with rest of our friends? Yeah!! you can post that stuff 
Site Map
