High volume batch insert

Hi,
I need a SQL program to insert a record into a parent table and then up
to 200 child records, using the primary key of the parent record. Whats
the best way to structure this procedure for performance and
reliability ? e.g
INSERT INTO tblExam ( dteExam,intModule,) Values () ...
SET intExamID= @.@.IDENTITY
' Psedo-code
For each Candidate in frmExamRequest
INSERT INTO tblCandidateExam ( intExamID, intCandidateID )
Next
The data is all coming from a form on an ASP page, I could break it
into two forms but for the users a single form with exam date, and list
of candidates they can check/uncheck is much easier.
If I have 2 stored procs to insert a exam instance & candidate
instances, the latter proc will be called 200 times over an ADODB
Connection. Is it possible to have a single stored proc to do the whole
task in a transaction with unknown number of candidates ?
thanks.When the user hits "Enter" you could either collect all the candidate IDs an
d
put them in a comma delimited string and then pass that string to the stored
proc that's doing the insert.
You could perform inserts into tblCandidateExam by looping through the
candidate IDs.
I think that's probably the easy way. Hope that's helpful
Cheers,
mmm
"cc900630@.ntu.ac.uk" wrote:

> Hi,
> I need a SQL program to insert a record into a parent table and then up
> to 200 child records, using the primary key of the parent record. Whats
> the best way to structure this procedure for performance and
> reliability ? e.g
>
> INSERT INTO tblExam ( dteExam,intModule,) Values () ...
> SET intExamID= @.@.IDENTITY
> ' Psedo-code
> For each Candidate in frmExamRequest
> INSERT INTO tblCandidateExam ( intExamID, intCandidateID )
> Next
> The data is all coming from a form on an ASP page, I could break it
> into two forms but for the users a single form with exam date, and list
> of candidates they can check/uncheck is much easier.
> If I have 2 stored procs to insert a exam instance & candidate
> instances, the latter proc will be called 200 times over an ADODB
> Connection. Is it possible to have a single stored proc to do the whole
> task in a transaction with unknown number of candidates ?
> thanks.
>|||See if one of these helps:
http://www.aspfaq.com/show.asp?id=2248 Arrays & Lists
http://www.sommarskog.se/dynamic_sql.html Dynamic SQL
http://www.users.drew.edu/skass/sql...bleProc.sql.txt List to
Table script
Andrew J. Kelly SQL MVP
<cc900630@.ntu.ac.uk> wrote in message
news:1117472922.543985.50420@.g14g2000cwa.googlegroups.com...
> Hi,
> I need a SQL program to insert a record into a parent table and then up
> to 200 child records, using the primary key of the parent record. Whats
> the best way to structure this procedure for performance and
> reliability ? e.g
>
> INSERT INTO tblExam ( dteExam,intModule,) Values () ...
> SET intExamID= @.@.IDENTITY
> ' Psedo-code
> For each Candidate in frmExamRequest
> INSERT INTO tblCandidateExam ( intExamID, intCandidateID )
> Next
> The data is all coming from a form on an ASP page, I could break it
> into two forms but for the users a single form with exam date, and list
> of candidates they can check/uncheck is much easier.
> If I have 2 stored procs to insert a exam instance & candidate
> instances, the latter proc will be called 200 times over an ADODB
> Connection. Is it possible to have a single stored proc to do the whole
> task in a transaction with unknown number of candidates ?
> thanks.
>

Hierarchical table (count)

Hello

for MS SQL 2000 i am having :

CREATE TABLE [dbo].[Items](
[id_Items] [int] IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED,
[id_ItemsSup] [int] NULL,
[Name] [nvarchar] (100) NOT NULL,
[SubItems][int] DEFAULT (0)
) ON [PRIMARY]

with :
UPDATE [Items] SET SubItems = (SELECT COUNT(id_Items) AS ct FROM dbo.Items WHERE id_ItemsSup = 1) WHERE id_Items = 1
I get how many subItems has Item = 1

how can I update the Column SubItems (for each row) ?
to get the total of subItems for each Item ?

thank youupdate Items set subitems = (select count(*) from items where Id_ItemsSup = A.Id_ItemsSup) from Items A|||it works fine

thank you