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Yes I want to create table which will check coloum value from other table like dbo.fine table will check returndate from dbo.borrow table.
Like if ReturnDate is 20/12/2006 but SubmitedDate is 25/12/2006 . Per day fine 20P, so fine coloum On dbo.Fine table will automatically add £1.00
How CAN I DO IT?
Sarfarj Ahmed
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First of all, don't shout. It's rude. This is a free site, so be grateful that people are willing to give up their time to help you.
Secondly, this is pretty basic arithmatic isn't it? Calculate the number of days difference between the ReturnDate and SubmittedDate using the DATEDIFF function and multiply the result by the daily fine to get the overall fine.
Paul Marfleet
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we have two database A & B.i want to update field Address1,Address2,Address3 in database A with Address1,Address2,Address3 in B database.how can achived it.
Thanks
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update a.dbo.TableName .....etc
not both databases should be in same server.,
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Something like:
update
A.dbo.Address1 X
set
X.Address1 = Y.Address1,
X.Address2 = Y.Address2,
X.Address3 = Y.Address3
from
B.dbo.Address Y
where
X.Id = Y.Id
As stated before, both databases need to be on the same server for this to work.
Regards,
Rob Philpott.
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i am using an oledbcommand object to perform both insert and update based on the command text supplied and i am adding the parameters for update also in the order of insert. So incase of update though, its not giving any error/exception but database is not getting updated.
Can any body pls tell me how to resolve this or any other way to implement both the functionalities using single method.
Thanks in advance.
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The order of parameters should not be an issue. You need to first check your update stored procedures or statements. The easiest way to do this is to trying and execute them (using EXEC) directly in the database. This will enable you confirm whether they are OK.
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I Have a table of emp with the fields of
Empno empname Empsalary
1 sam 1000
2 joe 2000
3 harry 3000
Now i want a query for a give me the result like this
Empno empname Empsal salTotal
1 sam 1000 1000
2 joe 2000 3000(sum of previous salary Total with the current sal)
3 harry 3000 6000 sum of previous salary Total with the current sal
How can be achive this result by using query
Thanks a ton in advance
Thanks and Regards
Aavesh Agarwal
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This will give you what you are after, but will take a long time to run if your table is large, as it executes the subquery once for each line.
select EmpNo, EmpName,
(select sum(EmpSalary) from emp e2 where e2.EmpNo <= e1.EmpNo)
from emp e1
order by e1.EmpNo
Hope that helps!!
-------------------------------------------
Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Just bugger off and leave me alone!!
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Hi
Thanks For reply.Its Working but as u said it will take long time when table is large any Other way by which our query work fine untill table is large.
Thanks a Ton
Thanks and Regards
Aavesh Agarwal
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For something like this you might consider using cursors - things which iterate through your table like a traditional loop. They're generally best avoided although I think quite appropriate in this case.
Regards,
Rob Philpott.
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I want to use Form Authentication for reports and that is to coordinated with my web application , whatever database i m using in my web application , only that database i have to use for formauthentication in SSRS and once user logged in , He/she didn't login again to access for report server and User can see their reports according to user role.
I was using the method which is described in Form authentication Sample in msdn but i didn't get full success.
Please help me out.
shraddha tripathi
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i have to use the while loop
like
while(select name from table)
update table set name=name + 0
next
I know this is not a realistic , i was trying to just make u understand.
How should i implement it.
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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hi
You can use Cursor for this
regards
JOE
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can u provide some link?
i mean how to use cursors in stored procedure?
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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google broken where you live ?
Cursors are very expensive, you should avoid them if you can.
Christian Graus - Microsoft MVP - C++
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Hi Christian...
How should i implement the following thing
i have to use the while loop
like
while(select name from table)
update table set name=name + 0
next
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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Like Chris has stated, cursors are more expensive. If you can explain us on what you are trying to do, probably you may be suggested with a better workaround.
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Like there are four Rows
S.No Total Received Balance Delete
1 1000 100 900 Delete
2 1000 200 700 Delete
3 1000 300 400 Delete
4 1000 400 0 Delete
if i delete the first row then the effect will take place on the balance column in the 2nd, 3rd , 4th column.
I want to use the sql queries in (Stored Procedure)database and not in the form
Now i am telling u what i thought to do it
first select statement , to fetch all the records, then one by one i will subtract the received from the total and ba;lance will be updated.
This is what i want to do.
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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Sonia Gupta wrote: if i delete the first row then the effect will take place on the balance column in the 2nd, 3rd , 4th column.
It's poor design. Why you are calculating the balance and updating all remaining rows ? This will end in performance issues. Assume you have many rows in that table, and you are doing this calculations on each row deletion, it will be a big overhead for SQL Server.
This is presentation issue. You can calculate the balance when you do select on the table. This will be fast comparing to your method.
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that means i should not do the calculation after deleting the row, whether i impacts the rest of record or not?
Soniagupta1@yahoo.co.in
Yahoo Messenger Id = soniagupta1
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Sonia Gupta wrote: that means i should not do the calculation after deleting the row,
Yes you can do this when records are selected.
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hi
here is an example..fore more details on Cursor you can check help of Sql server 2000..
declare @EMpname as nvarchar(100)
declare emp_cursor cursor for
select name from employee
open emp_cursor
fetch next from emp_cursor into @EMpname
while(@@FETCH_STATUS=0)
begin
< update Statements>
fetch next from emp_cursor into @EMpname
end
close emp_cursor
deallocate emp_cursor
Regards
JOE
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You hava a table containing about 1000000 records.Now you want to delete 950000 records and only left 50000 records in the table. As there isn't much memory can be used, how to deal with it perfectly (both in time and in space)?
many thanks
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richardye wrote: As there isn't much memory can be used, how to deal with it perfectly (both in time and in space)?
What is going to happen when you delete all of those records is that the transaction log is going to grow.
Regarding disk space(I take it you mean disk space rather than memory?):
Backup the transaction log to clear it out of pending transactions first.
You will then need to shrink the transaction log.
Run your script to delete the records.
Then straightaway backup the transaction log and shrink it again.
This is the only way I can think of to keep disk space usage at a minimum.
Regarding speed:
All I can suggest is that you do all of this out of hours when nobody else is using the database.
If anybody else is accessing the table you are deleting from there is always the chance that you could get a lock, for a period of time, or even a deadlock.
You always pass failure on the way to success.
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