How consistent is the view of the data between and within
multiple sessions, transactions or statements ?
how to delete duplicate rows from a join tables(I have three
tables on that join)
how do you know which join is need to be used?
The select statement I have is:
WHERE gc_area_tec.id_skill_type (+) =
AND gc_technology.id_area_tec (+) =
order by gc_skill_type.skill_type asc, gc_area_tec.area asc,
in oracle 10g sw after compiling procedure how to pass
parameter values ,if we (v_empid out number)how to give
empid after successful compilation program.This site exact
suitable for 10g with respect to question & answer same
format , im trying sql browser & sql command prompt using
exec procedure name & respective parameters.
What action do you have to perform before retrieving data
from the next result set of a stored procedure ?
column A column b | output
10 7 | 10
5 8 | 8
7 -9 | 7
3 5 | 5
0 6 | 6
Write a sql query to print such output.
how will i became good database developer?
create SQL (both DML/DDL) statements appropriate for the
creation of relational structures & constraints and other
objects for a given case study, the population of these tables
and the manipulation (querying/updating) of the stored data.
2. Create, develop and use the PL / SQL Program Units
Procedures, Functions as a progression towards Object Oriented
Relational Database Programming.
3. Package a collection of logically related Procedures and
Functions together to further move towards development of
Objects which reflect the principle of Data Abstraction whereby
only an Object specified in the Interface is accessible to the
4. Select, create, and use appropriate Database Triggers to
impose agreed specific constraints on a Database Table.
5. Provide a full and detailed evaluation which includes a
comprehensive test execution plan and its implementation for
each of the above.
Consider the following case study:
Perilous Printing is a medium size printing company that does
work for book publishers throughout UK. The company currently
has 10 offices, most of which operate autonomously, apart from
salaries, which are paid by the head office. Currently the
sharing and communication of data, is carried out using multi-
user networked access to a centralised RDBMS. Perilous Printing
jobs consist of printing books or part of books. A printing job
requires the use of materials, such as paper and ink, which are
assigned to a job via purchase orders. Each printing job may
have several purchase orders assigned to it. Likewise, each
purchase order may contain several purchase order items. The
following tables form part of the transactional RDB that the
office (office_no, o_addr, o_telno, o_faxno, mgr_nin) staff
(staff_no, nin, fname, lname, s_addr, s_telno, gender, dob,
position, taxcode, salary, office_no) publisher (pub_no,
p_name, p_city, p_telno, p_faxno, credit_code, office_no)
book_job (job_no, pub_no, job_date, job_desc, job_type,
job_status, supervisor_nin) purchase_order (job_no, po_no,
po_date) po_item (job_no, po_no, it_no, qty) item (it_no,
it_desc, amt_in_stock, price)
office contains details of each office and the office number
(office_no) is the key. Each office has a Manager represented
by the manager’s national insurance number (mgr_nin).
staff contains details of staff; the staff_no is the key. The
office that the member of staff works from is given by
publisher contains details of publisher and the publisher
number (pub_no) is the key. Publishers are registered with the
nearest office in their country, given by office_no, and they
are given a credit code that can have the
values “AA”, “AB”, “BB”, “BC”, “CC”, “CD” and “DD”. If a
publisher is to be deleted then not only the publisher’s entry
from the publisher table will have to be removed but all the
data associated with the particular supplier has to be deleted
book_job contains details of publishing jobs and the job number
(job_no) is the key. The publisher is given by the publisher
number (pub_no) and the supervisor for the job by
supervisor_nin. The job type can be either null or urgent;
whereas the job_status can be “ongoing” or “completed”
purchase_order contains details of the purchase orders for each
job and the combination of job number and a purchase order
number (job_no, po_no) form the key. Each printing job may have
several purchase orders assigned to it.
item contains details of all materials that can be used in
printing jobs and the item number (it_no) is the key.
po_item contains details of the items on the purchase order and
(job_no, po_no, it_no) forms the key.
In the above given database schema, descriptions are strings of
characters (at most 30 characters long), any dates (except the
job_ date) stored cannot be after the current system date, and
quantities and prices are assumed to be non-negative numbers.
Difference between global and parameter variables?
i have some prob
lem to tell me about my self in interview first round ...
What packages(if any) has oracle provided for use by developers?
in sql table follw columns r their
1234 |1FS |1-JAN|PUNE|
4561 |2FS |5-JAN|PUNE|
1234 |PS |7-JAN|PUNE|
1234 |PS |15-JAN|MUMB|
i want o/p below
PLS help me out to execute using sql query
Maximum how many triggers can we use in trigger and How to find out how many records it fetched.
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...
With the help of table1 and table2 write a query to simulate
the fallowing results.
1.Write query for single row to multiple row using sql
2. Write query for multiple row to single row using sql
1.Write a query to select all the rows from a table1,if
the value of A is null then corresponding B’s value
should be printed in A’s value.if the value of A is null in
that table then corresponding B’s value should be printed
2. write a query to find the sum of A and B .display the
max among both.
3.write a query to find total number of rows from table 1.
Note: if any column value is null in a row then that row
should be considered as 2 rows.
4.write a query to display all the records of table1 except
A containg 2 as well B containg 5.
5.rewrite the fallowing without using join and group by.
Select b.title,max(bc.returneddate –bc.checkoutdate)”
From bookshelf_checkout bc,
Book shelf B
Group by b.title.
6.rewrite fallowing query
Select id_category from category_master X where exists
(select 1 from sub_category Y where
Name phone1 phone2 phone3 bitwise
A 23456 67890 12345 ---
B 67459 89760 37689 ---
1.q) update the customer table of bitwise with 1 or 0.
Exists in don’t_call table menas show -1
Other wise -0.
source destination distance
chennai bangalore 500
bangalore chennai 500
hyd delhi 1000
delhi hyd 1000
bangalore hyd 800
Here chennai to bangalore and bangalore to chennai is same distance. and hyd and delhi also same criteria.
Based on the distance i want to display only one row using sql query?