I know identity key in a table can cause problems when the table is replicated. Should we avoid using identity key altogether, if we don't know in advance whether replication will come into the picture?
Thanks for any advice.
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
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?
I have table of three column first column is an ID column. However at creation of the table i have not set this column to auto increment. Then i have copied 50 rows in another table to this table then set the ID column values to zero.
Now I have changed the ID column to auto increment seed=1 increment=1 but the problem is i couldn't figure out how to update this ID column with zero value set to each row with this auto increment values so the ID column would have values from 1-50. Is there a away to do this?
Ok,I just need to know how to get the last record inserted by the highestIDENTITY number. Even if the computer was rebooted and it was twoweeks ago. (Does not have to do with the session).Any help is appreciated.Thanks,Trint
View 2 Replies View RelatedHi,
I am having problem in bulk update of a sql server table haning identity column from a datatable( has no identity column) using sqlbulkcopy. I tried several approaches, but it does not show any error nor is the table getting updated. But the identity value seems to getting increased every time.
thanks.
varun
I'm working with a third-party database (SQL Server 2005) and the problem here is the following:
- There are a bunch of ETL processes that needs to insert rows on a table (let's call this table T) and at the same time, an ERP (owner of T) is up and running (reading, updating and inserting on T).
- The PK of T is an Integer.
Today all ETL processes uses (select max(ID) + 1 from T) to insert new rows, so just picture the scenario. It is a mess! Everyday they get duplicate key error when 2 or more concurrent processes are trying to insert a row (with the max) at the same time.
Considering that I can't change the PK, what is the best approach to solve this problem?
To sum up:
* I need to have processes in parallel inserting on T
* I can't change anything on T
* The PK is NOT an Identity
when i alter non identity column to identity column using this Query alter table testid alter column test int identity(1,1) then i got this error message Msg 156, Level 15, State 1, Line 3 Incorrect syntax near the keyword 'identity'.
View 2 Replies View Relatedi have found loads of topics on this but have yet to find one that gives the answer i need.I want to display the last insert id into a label/textbox after the INSERT functionhow do i do this?
View 18 Replies View RelatedI got two tables
one table has the fields ie table1
orderid ofd orderdate customername
where order id is autonumber
the other table2
orderid ofd product id productname
the problem here is thatif customer purchases 3 product at a time all the 3 products get the same ofd number ........and any 2 customers can have the same ofd number................ now i have to pull the order ID value from table 1 to table 2............ can somebody help with this i am the front end is asp.net amd the database is done on SQL server management studio
Hi, I was looking through this thread about @@Identity: http://forums.asp.net/p/1039145/1443971.aspx#1443971 I'm still unsure how to ue it. I have an Orders table, a Products table and a Products_Orders table. When I add an order to the Orders table I want the PK OrderID in this table to also update the FK OrderID in my Products_Orders table. I'm using SQL EXP05 and I'm in C#.
View 1 Replies View RelatedHi i want to get the naxt identity number how can i get it pls help me very urgent
View 3 Replies View Relatedhello,
I've got a problem reading the @@identity in vb.net
I tried it the way below and get the error: Public member 'EOF' on type 'Integer' not found.
(--> means with rsLastIdent)
comm_user = "SET NOCOUNT ON; INSERT INTO user (firstname, lastname, company, emailAddress) VALUES ...); SELECT @@IDENTITY AS Ident;"
comm = new SqlCommand(comm_user, dbConnection)
dbConnection.Open()
Try
rsLastIdent = comm.ExecuteNonQuery()
Catch ex As Exception
Response.Write("Exception:")
Response.Write(ex.ToString)
End Try
if NOT rsLastIdent.EOF then
feed_userID = rsLastIdent.Fields.Item("Ident").Value
end if
The sql-statement is correct - I tried it on SQL Server and got the correct result, so something is wrong with my vb.net code...
Please can anybody help me and tell me how to declare my rsLastIdent or another way to code it in vb.net to get the @@identity?
Thanks a lot!
tim
hi,
I was wondering if someone could help me out with this stored procedure I have. I am trying to execute a transaction in one of my sps and am getting pk violations on 'OrderID'.
This where i encounter this error:
SELECT
@OrderID = @@Identity
/* Copy items from given shopping cart to OrdersDetail table for given OrderID*/
INSERT INTO OrderDetails
(
OrderID,
ProductID,
Quantity,
UnitCost
)
SELECT
@OrderID,
ShoppingCart.ProductID,
ShoppingCart.Quantity,
Prices.UnitCost
FROM
ShoppingCart INNER JOIN
Prices ON ShoppingCart.ProductID = Prices.ProductID
WHERE
CartID = @CartID
is there any way to rewrite this statement so that I can put it in the form insert()values(). ?
HiTrying to get a return value from this code, but only gets a 0. Am using SQLExpress.SqlParameter[] p = new SqlParameter[4];p[0] = new SqlParameter("@a", "aaa");p[1] = new SqlParameter("@b", "bbb");p[2] = new SqlParameter("@c", "ccc");p[3] = new SqlParameter("@d", SqlDbType.Int, 40);p[3].Direction = ParameterDirection.ReturnValue;
string s = @"set nocount on INSERT INTO ABC(A, B, C) VALUES(@a,@b,@c) SELECT scope_identity()";
using(SqlConnection conn = new SqlConnection(this._connection)){ conn.Open(); SqlHelper.ExecuteNonQuery(conn, CommandType.Text, s, p); int foo = p[3].Value;}
Hi all,
is there a way in SQL Server for me to get the next available Identity value from an Identity column?
(I don't want to perform an insert, and then get the identity through @@IDENTITY!)
Thanks
Tryst
I am trying to follow other examples I have seen on the site, and am still getting the
Must declare the scalar variable "@@INDENTITY".
string sqlAdd = string.Format("INSERT INTO " + siteCode + "_campaign_table (campaign_name, prod_id, type) "
+ "VALUES('{0}', '{1}', '{2}'); SELECT @@INDENTITY", campaignName, prodID, type);
SqlCommand comAdd = new SqlCommand(sqlAdd, con);
comAdd.CommandType = CommandType.Text;
con.Open();
//comAdd.ExecuteNonQuery();
int identity;
identity = Decimal.ToInt32((decimal)comAdd.ExecuteScalar());
lblErrorMessageAdd.Text = identity.ToString();
con.Close();
Is it possible to use the ALTER TABLE statment when modifying an INT field to be an IDENTITY.
thanks in advance.
I would like to know the best way to select/maintain a sequence number in SQL Server. I've seen locking problems with using the @@identity and was wondering if there is a better way.
Several of our applications have the need to generate a sequence number that is inserted into one or several tables. In one application they have done the following ...
- Created a table with a column defined with identity attribute, for example
TableA
ColA defined as Int with Identity checked
ColB define as char(20)
- In the application, code looks like to get the sequence number:
insert into tableA (ColB, 'anything');
select (@@identity) as sequence from TableA
Then the last 5 positions of sequence are used to insert into another table. Problem with this is that several rows are being created in tableA when only a sequence number is needed. Also, we need to make sure no one else does an insert before the select @@identity.
Another approach I'm thinking about would be to create a one row table that contains an integer field initialized with a value of 1. To select/update the sequence number the code would need to:
set transaction serializable
select number
from tableA UPDLOCK
update tableA
set number = number + 1
How are most people generating a sequence number in SQL Server? In Oracle this would be done by selecting sequence.nextval. For example:
Select sequenceA.nextval from dual;
Is there an equivalent way in SQL Server 7.0? Thanks.
Hi,
Is there a way, I can give access(not dbo or sa) to a person so they can bcp into tables that have identity columns? I want to be able to give permissions ahead so I do not have to bother setting the identity insert on every time he wants to bcp.
Thanks a lot for your help
Sasha
I'm successfully inserting into a db using a stored proc, but I need to replicate the ClientID to 10 other tables. For some reason, this one is escaping me.
After a successful insert, I then use:
SELECT @@IDENTITY ClientID
SELECT @ClientID = @@IDENTITY
INSERT INTO table2
(ClientID)
VALUES(@ClientID)
INSERT INTO table3
(ClientID)
VALUES(@ClientID)
INSERT INTO table4
(ClientID)
VALUES(@ClientID)
The insert ClientID into the other tables is being inserted. I added SET @ClientID = @@IDENTITY and it made no difference.
Thanks for the help.
Alan
Does anyone know if there is bug/problem with the @@identity global variable in SQL Server 7.0?
I have a stored procedure that inserts a row into a table with an identity column and returns (outputs) the value
of the identity column just generated. The SP is called by a Java program. The SP works fine most of the time,
however from time to time it retuns a NULL value! Your comments/suggestions are much appreciated.
Hi everyone,
Can someone explain how I can use another table to hold my @@identity value so I can have the correct value to update other tables?
Thank you very much,
Nathan
I have a table (tblMoney). When I insert a new row into the table, via a standard insert stored procedure, the new row, has the identity column numbered correctly (say 34 for example). At the end of the stored procedure, we return @@IDENTITY for the developers. This will return a much bigger number (1198).
Any idea how these got out of sync, or how they can be fixed??
Thanks!
Trisha
Is there a way to turn off the identity from a table via t/sql.
I am not talking about "SET IDENTITY_INSERT tableABC ON" or Off, I want permanantly to take off this identity without through E.M. to manually do it. And I might have up to 8000 tables need to do so.
thanks
-D
Hi Everybody,
I am working on a project involving SQL Server 6.5 and Site Server.
We need to create a unique sequence number. One option is to use the
identity field of SQL Server. I am just wondering if there is some
object which can be used to get a unique sequence number.
How easy or tough is it to develop such an object?? Do U guyz recommend
using this or working with the identity option itself.
Thanks for any advice
Madhu
I use field ID as identity and IDENT_SEED change itself suddenly to the starting value.
How can I set it to right value?
Beargie
Hi, everybody !
I have a column 'IDNum' with identity(1,1). When I fill up table first time it's working fine, I mean it increments IDNum + 1. But after truncating table
when i fill up table again, IDNum starts not from 1 but from last max(IDNum) + 1
that actually does not exist after deleting I guess. I do not see this problem after rebooting. I use SQL 2000, SP 5, NT Server 4.0.
Any ideas ?
Thanx in advance.
I am getting this error because my contact_id is a PK and
has the identity set to yes and Identity seed=1,Idenity increment=1
'Server: Msg 2627, Level 14, State 1, Line 4
Violation of PRIMARY KEY constraint 'PK__CONTACT__40C49C62'. Cannot insert duplicate key in object 'CONTACT'.
The statement has been terminated.'
I am trying to insert a new rows with some old data. Below is my query.
What should I do in order to accoplish my task?
set IDENTITY_INSERT contact ON
insert into contact (contact_id, contact_type_id, account_id,
name, phone_number, extension, fax_number,
email_address, date_created, created_by,
last_update_date, last_updated_by)
select (contact_id, ,contact_type_id, 1003,
name, phone_number, extension, fax_number,
email_address, getdate(), created_by,
getdate(), last_updated_by
from contact
where aid = 916
set IDENTITY_INSERT contact OFF
When creating table in MSSQL i didnt set IDENTITY property to the column that should be auto incremented. Can i set this property in ALTER TABLE command???
View 7 Replies View RelatedHi,
My Question is, I have two table CustomersName and CustomerProducts.
in CustomersName i have 2 fields Cust_ID with Identity ,Names. and in customerProducts i have 3 fields Product_ID with Identity ,ProductName,Cust_ID.
I want know that How to use Cust_ID in Second table that Identity values is Genrated Automaticaly in First table.
Thanks in Advance
Does this only work with an identity column?
my :
INSERT INTO [Contacts].[ekr].[Usrs]([id], [Uid], [Pw], [writ], [Maint])
VALUES(7, 'MM', 'WW', 1, 0)
IF @@ERROR > 0
RAISERROR('String, Severity level, State',16,122)
ELSE
SELECT @@Identity as NewOne
Returns : NewOne
NULL
I am trying to get the last ID auto in MS SQL 2000
SELECT @@IDENTITY as ident FROM users
and i get nothing
i am using
SELECT MAX(id) as ident from users
what is the correct way to be shure to get at once the real last ID ?
thank you