1. is it possible to use the cursor atttibutes (%found ,%
rowcount , %isopen , %notfound ) to our user defined cursor
names .......
cursor cursor_name is select * from scott.emp
if you use...
cursor_name%found , %rowcount ,%isopen,%notfound...will it
work...
--------------------------
2.what is the difference between the varray and index by
table ..
--------
3.
type type_name is table of number(8,3)
index by binary_integer;
identifier_name type_name;
first , last , prior , next ,trim are the methods we can
use it for the above type...simillary is there any way to
apply for cursors...
with thanks and regards..sarao...
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
If i can use sys.check_constraints to display my constraints
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What action do you have to perform before retrieving data
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C. Normalize the following data up to the 3rd Normal
form. Create the tables and insert the data given.
Emp_ID Name Dept_Name Salary
Course_Title Date_Completed
100 Adam Marketing 48,000 SPSS 6/19/2008
Surveys 10/7/2008
140 Bob Accounting 52,000 Tax Acc 12/8/2008
110 Cathy IT SQL Server 1/12/2008
C# 4/22/2008
190 Dan Finance
150 Emily Marketing 55,000 SPSS 6/16/2008
42,000 Analysis 8/12/2008
Queries
1. Find all Names who have completed the SPSS Course.
2. Find employee with max salary.
3. Find employee with 2nd max salary.
4. Find all employees in Dept “Marketing”.
5. Find all the employees who have taken more than 2
courses.
6. Find all the employees who have completed the courses
before month of September.
217
What are wait events. Describe the wait event tables.
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