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Hi,
I'm writing a wrapper for ADO for some computer game's scripting in C++.
(I compile a dll that extends the game's functionality, and by so add new features to its scripting abilities)
After connecting with a _ConnectionPtr and opening a _RecordsetPtr with an Insert command, how do I get the autonumber column from the inserted row?
I understood that I could do it if I used AddNew instead of an insert command, but that's a problem of circumstance. Mainly relating to the fact I couldn't understand how to easily use this function.
Any help would be appreciated!
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What database do you use ?
If SQL Server you can use this query:
Select @@Identity()
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Currently I'm connecting to an Access 2000 database. That might change to Sql Server later on, but not planned to be soon.
And the second thing is, this might be called a lot in different threads, so I can't be sure that between the insert and the Select @@Identity() stuff won't change on me.
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Hi
@@Identity is supported in JET 4.0 (the engine that runs MS Access queries)
Check: http://support.microsoft.com/kb/232144[^]
Also @@Identity gets the last insert id for the current open session (Connection), so you should not worry about multiple threads.
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Hi everyone,
I am trying to send parameters to a stored procedure as an array using VB 6 , is that possible, and how ?
Please help
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Hi
It is not possible to pass array to Stored Procedure but instead of that pass comma-separated values. (eg. 1,2,4,5).
Write a separate function to read & return value as '1','2','3','5'
For example Pass value as '1,2,3,4,5' and function should return as '1','2','3','5'.
Harini
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Sir,
can you please tell me query to display records from 20th to 30th from 100 records in SQL server and Access database. How they differ. Thank you.
Regards,
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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This works in SQL Server but not sure in MS Acceess
Select top 10 * from TALE_NAME
where ID not in
(Select top 20 ID from TALE_NAME order by ID )
order by ID
another method in MS SQL Server 2005:
With ctp as
(
Select row_number() over (order by ID) a, * from TABLE_NAME
)
Select * from ctp
where a between 21 and 30
order by a
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well its so simple.
Do one thing first add a Field which is autonumber.
then u'll have hundered ids in tht column then use its value as follows.
select * from TableName where id between 20 and 30;
hope it works.
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Ok. But could you please tell me to create the dynamic column from within the query itself only. And it will not be permanently created in the table. The query should be in SQL Server 2000. Thank you.
Regards,
Aleem,
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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We having two fields 1)shift time 2)Actual time .Actually when subtracting these two time we are not able to get in time format for another field.plz give me ur valuable suggestion
Jeyan
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I know that this can't be too hard, but for whatever reason, I haven't been able to figure out how to do it.
I have a query that is returning a group of fields, including some date fields. The data in the field is formatted as follows:
2007-02-08 00:00:00.000
The date part is fine, but I need the time to be standard time (hour:minute:second:millisecond AM/PM) instead of military because of a brittle application that reads the data.
Can anybody help me?
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select convert(varchar(28),@dt,131)
Where @dt is your datetime variable.
Ben
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That's odd. Now it's coming out as:
3/02/1428 12:00:00:000AM
Now the time is right, but the date is odd. The offset seems about right for the Arabic year though (if I remember my Middle East history).
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Sorry I didn't look close enough to the format it puts it in:
dd/mm/yy hh:mi:ss:mmmAM
Here is what I know:
Change the 131 to:
100 you get mon dd yyyy hh:miAM (or PM)
109 you get mon dd yyyy hh:mi:ss:mmmAM (or PM)
So then your date isn't formatted right. It is almost starting to look like you need to take the date part that is ok and then take the time part from 109
Anyway it is a bit more of a pain, but if you need that specific format here it is:
declare @dt datetime,
@time varchar(28),
@date varchar(30)
select @time = convert(varchar(28),@dt,109)
select @date = convert(varchar(30),@dt,112)
Select substring(@date,1,4)+'-'+substring(@date,5,2)+'-'+Substring(@date,7,2)+' '+ltrim(substring(@time,12,15))
Ben
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idol...
i have 3 columns in my table the room,timeStart,timeEnd.
For example i have inserted this data
room: room1
timeStart: 2007-03-02 8:00 AM
timeEnd: 2007-03-02 3:00 PM
Here's the data that will not be accepted if try to insert
room: room1
timeStart: 2007-03-02 9:00 AM
timeEnd: 2007-03-02 4:00 PM
because the timestart is between the timeStart and the timeEnd. Room1 will only be occupied after 3:00 PM.
Can you help me with this?.
Thank you very Much
Bernie
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I don't know if there is a very good way of doing this. No matter which way you do it, it will be a lot of work. Most likely you will need to have some table that keeps track of when each class can be in each room and then check that table before inserting the record. Good luck.
Ben
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Can you tell me how to use the check Constraint for that?
Bernie
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I have never used a check constraint in the way you are wanting to use it. I am not sure it can be done. If all records getting inserted had a certain rule then a check constraint would be the correct one to use. I am under the impression that each record might have a different rule. In that case I would not use the check constraint.
Ben
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ok can you teach me how to solved that? I dont know how to start my code for that.
Bernie
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It is going to be a complicated solution. I think you should just try your best and figure it out any way you can.
Ben
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ok.. i will..thanks for that.
I have another question if ok.
you are so blessed ben,
How about rowfilter using textbox and dropdown?.
Bernie
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The rowfilter you can use in a DataView. I can't remeber if you do vb.net or C# but it is something like this:
DataView dv = yourdatatable.DefaultView;
dv.RowFilter = "columname = "+textbox.Text;
gridview.datasource = dv;
gridview.databind();
Anyway, that is what the C# looks like.
Ben
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i got the answer Ben, just now. I just configure it in SQL data source.
thank you very much. I am just a beginner Ben thats why i am asking.
Can i have another question?..Hehe
How about computing difference of two time to be display in textbox before inserting
Bernie
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