Get Next Unique ID From A Table Before Insert @@identity / Sequence

How do I get the next int value for a column before I do an insert in
MY SQL Server 2000? I'm currently using Oracle sequence and doing
something like:

select seq.nextval from dual;

Then I do my insert into 3 different table all using the same uniqueID.

I can't use the @@identity function because my application uses a
connection pool and it's not garanteed that a connection won't be used
by another request so under a lot of load there could be major problems
and this doens't work:

insert into <table>;
select @@identity;

This doesn't work because the select @@identity might give me the value
of an insert from someone else's request.

Thanks,

Brent

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Insert Row In Table With Identity Field, And Get New Identity Back

I want to insert a new record into a table with an Identity field and return the new Identify field value back to the data stream (for later insertion as a foreign key in another table). 

What is the most direct way to do this in SSIS?

 

TIA,

 

barkingdog

 

P.S. Or should I pass the identity value back in a variable and not make it part of the data stream?

 

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Problem When From Sequence File Insert Into Oracle Destination Table In SSIS Package

Hi ,

 

i was used the Follwing DataFlow for my Package.using Oracle 8i

 

FalteFile Source -------------> Data Conversion --------------->OLEDB Destination (Oracle Data table)

using above control flow to map the Source file to Destination . When i run the SSIS Package teh Folwing Error i got

"Truncation Occur maydue to inserting data from data flow column "columnName " with a length of 50 "

regarding this Error i i understood its for happening Data Length . so that i was changed the Source Column Length Exactly Match with the The Destination table.

still i am getting this Error. pls any one  give me a solution . SHould i Change the DataType  also?

 pls give your suggestion

 

Thanks & Regards

Jeyakumar.M

chennai

   

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thanks.
varun

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While I have learned a lot from this thread I am still basically confused about the issues involved.

.I wanted to INSERT a record in a parent table, get the Identity back and use it in a child table. Seems simple.

To my knowledge, mine would be the only process running that would update these tables. I was told that there is no guarantee, because the OLEDB provider could write the second destination row before the first, that the proper parent-child relationship would be generated as expected. It was recommended that I create my own variable in memory to hold the Identity value and use that in my SSIS package.

1. A simple example SSIS .dts example illustrating the approach of using a variable for identity would be helpful.

2. Suppose I actually had two processes updating these tables, running at the same time. Then it seems the "variable" method will also have its problems. Is there a final solution other than locking the tables involved prior to updating them or doing something crazy like using a GUID for the primary key!

3. We have done the type of parent-child inserts I originally described from t-sql for years without any apparent problems. (Maybe we were just lucky.)  Is the entire issue simply a t-sql one or does SSIS add a layer of complexity beyond t-sql that needs to be addressed?

 

TIA,

 

Barkingdog

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I have a procedure which updates a sequence number in a table such as the one below.

 
Seq        Sequence_Id

------        ------------------
NextNum 1

 
This is the procedure ...
 
create procedure DBO.MIG_SYS_NEXTVAL(@sequence varchar(10), @sequence_id int)
as
begin
  
  update mig_sys_sequences
  set
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  where
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  return(@sequence_id)
end

 
The purpose of this is to generate a sequential number each time the procedure is called. This number would then be used in a number of different tables to allocate a unique id so that the id is unique across the different tables.

 
1). What is the most efficient way of allocating these unique ids? The tables that I plan to update will already be populated with data.
 
2). How would I call the above procedure from an UPDATE statement?
 
Many thanks,
 
Fred

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In the SERVER1, there is a table SEQUENCE in a database DATABASE1.
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Here is the sample data:
 
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when i try to do that iam getting an error
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"
even when I turned IDENTITY_INSERT ON for TableA

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I'm sure this is a common problem but I can't find any relevant info on this site

I have a table that I would like to insert values into. I want to take the values from a secondary table using a select statement.

e.g. a simplified version...


TABLE1
(
Id INTEGER IDENTITY,
UserName VARCHAR(50),
Description VARCHAR(50)
)

TABLE 2
(
UserName VARCHAR(50),
Description VARCHAR(50)
)

Runing the insert statement

INSERT Table1 (UserName, Description)
SELECT *
FROM TABLE2

results in the error
erver: Msg 515, Level 16, State 2, Line 2
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The statement has been terminated.

I was under the impression that an identity column would be automatically inserted by SQL server. Now I know I could write a piece of anonymous Transact SQL which declares a cursor by selecting all rows from table 2 and inserting rows into table 1 on a row by row basis, but is there any way I could do the Insert with a single INSERT statement?

thanks

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yearly' table
- Saving Definition Changes to tables with large amounts of data could take a considerable amount of time. While changes are being saved, table data will not be accessible.

Then I Have the following error:-
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regards

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I cannot insert into my appointments table because the primary key and identity column, appt_id, cannot be added. What do I have to change in my SQL statement to add new records into this table? I'm using SQL Server 2000 BE with Access Data Project FE.tbl_appointment-------------------1. appt_id (pk) --- identity column, seed 25, increment 12. date_id3. time_start4. time_end5. appt_details6. lkp_emp_idPrivate Sub btnAddAppts_Click()On Error GoTo Err_btnAddAppts_ClickDim strsql As StringDoCmd.SetWarnings Falsestrsql = "INSERT INTO [tbl_appointments] (lkp_emp_id, date_id, time_start, time_end, appt_details) values ('" & txtLkpEmpID & "', '" & txtDateID & "', '" & txtStartTime & "', '" & txtEndTime & "', '" & txtApptDetails & "')"DoCmd.RunSQL strsqlDoCmd.SetWarnings TrueDoCmd.CloseExit_btnAddAppts_Click:Exit SubErr_btnAddAppts_Click:MsgBox Err.DescriptionResume Exit_btnAddAppts_ClickEnd Sub I did check through Access and through Enterprise Manager and it is setup correctly. So I returned all rows in enterprise manager to manually enter an appointment to the table. I get the same error when doing data-entry straight to the table. [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot update identity column 'appt_id'. It does not automatically populate the appt_id field the way it's supposed to. When I try to manually set a value in there, i get an error: "Cannot edit this cell."

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Hi,
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Hello, I have a problem. I am trying to pull data out of one system and bring it into a SQL Server database for faster retrieval. The original table does not have an identity column and has a composite primary key. The table I am inserting the data into matches the original table exactly except I have an Identity column that I need for the removal of duplicates. The task gets to the final commit and then fails telling me that it can't insert a NULL into an identity field. Why is it trying to insert a NULL, the field should be auto-populating. I did add the Identity field to the table after the SSIS package was already built, but I did go into the destination and fix the column mappings. For the Identity column I just selected the "skip" option or whatever it was. Why are the identities not being auto-inserted and why is SSIS throwing this error?

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Hello!

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Cannot insert explicit value for identity column in table 'Gallery' when IDENTITY_INSERT is set to OFF.?

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Cannot Insert Explicit Value For Identity Column In Table 'Clients' When IDENITY_INSERT Is Set To OFF

Code Snippet
 
Private Sub AddClientToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AddClientToolStripMenuItem.Click
Dim addclient As New newclient()
newclient.ClientID = 0
Dim result As DialogResult
result = addclient.ShowDialog
If result = DialogResult.OK Then

Dim Client As clients_and_sitesDataSet1.ClientsRow
Client = Clients_and_sitesDataSet1.Clients.NewClientsRow
Client.ClientID = addclient.ClientID
Client.Clientname = addclient.Clientname
Client.Street_and_number = addclient.Street_and_number
Client.Zipcode = addclient.Zipcode
Client.Place = addclient.Place
Client.Phone = addclient.Phone
Client.Email = addclient.Email
Client.Contact_person = addclient.Contact_person
Clients_and_sitesDataSet1.Clients.AddClientsRow(Client)
ClientsTableAdapter.Update(Client)------------------------------problem
MessageBox.Show("New Client is saved")
Else
MessageBox.Show("User cancelled operation")
End If
addclient = Nothing
End Sub
 
 




Code in VB (2005 express edition)
 

Hi all above is aa snipped from the code I am using. all  works fine exxept the ------problem line.
when i try to run the program, i get an exeption
 
Cannot insert explicit value for identity column in table 'Clients' when IDENITY_INSERT is set to OFF

 
how can i turn this on???? I seem to be stuck, vieuwed the msdn video on the subject and cant find what I am doing wrong. I hope u guys can help me out.

 
 
And please give me specific guide lines on how to put in the code and code lines. I tried using
SET IDENTITY_INSERT Clients ON
But than I get all errors bout things not being declared, set not being supported anymore, things like that.
 
Thanks for the effort you will put into helping me out and becomming a "self supported programmer"

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