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
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>;
This doesn't work because the select @@identity might give me the value
of an insert from someone else's request.
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?
P.S. Or should I pass the identity value back in a variable and not make it part of the data stream?
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
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.
Hallo,Hot to get unique, sequential number during executionof stored procedure ?I can create table with autoincrement column,add record, get ident_current and delete recordeach time i need the number.However its not elegant i guess.best regardspluton
Is there wa way to generate unique sequence numbers in SQL server?
(just like the way it is in Oracle i.e. seqeuence and then use nextval)
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?
i have temp table name "#TempResult" with column names Memberid,Month,Year. Consider this temp table alredy has some rows from previuos query. I have one more table name "Rebate" which also has columns MemberID,Month, Year and some more columns. Now i wanted to insert rows from "Rebate" Table into Temp Table where MemberID.Month and Year DOES NOT exist in Temp table.
MemberID + Month + Year should ne unique in Temp table
I have a procedure which updates a sequence number in a table such as the one below.
This is the procedure ...
create procedure DBO.MIG_SYS_NEXTVAL(@sequence varchar(10), @sequence_id int)
@sequence_id = sequence_id = sequence_id + 1
seq = 'CSN'
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?
can someone pls show me a way to get an unique sequence at below senario:
PC1 & PC2 using their own local client progam to access to Database Server at SERVER1.
In the SERVER1, there is a table SEQUENCE in a database DATABASE1.
And the table's structure of SEQUENCE are SeqType & SeqNo.
Here is the sample data:
Now, how to prevent PC1 & PC2 to get a same Invoice No. if they request the Invoice No. at the same time?
Is it possible to lock the record Invoice when i perform a SELECT statement, then i update the Invoice to 101, lastly release the lock for Invoice?
pls advise. thanks.
I have 2 tables with same structure.only difference is, TableA has key colum which is declared as identity starting from 1.
I want to insert data from TableB into TableA where TableB.Key is all null with TableA.Key starting from 9000001
when i try to do that iam getting an error
"An explicit value for the identity column in table 'lEADlOAN' can only be specified when a column list is used and IDENTITY_INSERT is ON.
even when I turned IDENTITY_INSERT ON for TableA
HI,I have an SQL Server table with only 1 column. That column is anidentity column. How can I insert a row in this table using SQLsyntax?I tried insertinto T_tableName () values ()and a few other options, but I can't seem to get it to insert.ThanksAlain
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...
Id INTEGER IDENTITY,
Runing the insert statement
INSERT Table1 (UserName, Description)
results in the error
erver: Msg 515, Level 16, State 2, Line 2
Cannot insert the value NULL into column 'Id', table 'CDS_Live.dbo.Table1'; column does not allow nulls. INSERT fails.
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?
I have a table with 1000000 records i try to add a field with following`spec.
[mkey] [int] IDENTITY(1,1) NOT NULL
I get the following meassage:-
- 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:-
Time out error
- How is the best way to copy a large table from one to anther.
I have 2 tables - tblOrders and tblOrderDetails. Every time an order is placed, 2 INSERT statements are executed. The first one enters the general order and customer information in the tblOrders table:INSERT INTO tblOrders (custname, custdetails, orderdate) VALUES (@custname, @custdetails, @orderdate)The primary key in this table is OrderID which is an Identity column. This is the foreign key in the tblOrderDetails table.I'm trying to get the Identity value from the first INSERT statement to use in the second INSERT statement:INSERT INTO tblOrderDetails (orderid, productid, productcost) VALUES (@orderid, @productid, @productcost) How do i obtain this value and how would I supply it to the second INSERT statement?
I have a file I'm trying to do some non-set-based processing with. Inorder to make sure I keep the order of the results, I want to BULKINSERT into a temp table with an identity column. The spec says thatyou should be able to use either KEEPIDENTITY or KEEPNULLS, but I can'tget it to work. For once, I have full code - just add any file of yourchoice that doesn't have commas/tabs. :)Any suggestions, folks?--create table ##Holding_Tank ( full_record varchar(500)) -- thisworkscreate table ##Holding_Tank (id int identity(1,1) primary key,full_record varchar(500)) --that doesn't workBULK INSERT ##Holding_TankFROM "d: elnet_scriptspsaxresult.txt"WITH(TABLOCK,KEEPIDENTITY,KEEPNULLS,MAXERRORS = 0)select * from ##Holding_tank
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."
Arif writes "I want to insert values in to a table which is having identity column, how? can you help me out from this problem.
Thanks in advance
I need to insert data into a table using data flow task. Unfortunately this table's priamry key column (integer column) is not identity column. I am looking a way to get the primary key value for the new records. Please advice. Thanks
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?
Can anyone help???
Recently I'm working on a multi-thread solution based on SQL-Server, now I'm facing such a problem:
Suppose I have process No.1(with multi-threads) inserting data to Table A, which has its identity column auto generated. And process No.2(also with multi-threads) retrieving data from Table A ,generate some records and insert the result into Table B. Both of these two processes are doing batch processing(batch retrieving and batch writing), and they are running parallelly.
Now since process No.2 retrieve data sequencely by the identity of Table A, it found there exists missing results. This is due to that records with bigger identities are not necessarily commited earlier than those who have smaller identities.
One direct solution is add one flag field in Table A indicating whether this record has been processed by process No.2, and each time it was processed , the field will be set. But unfortunatelly the table structure is not supposed to be modified.
So is there any other good solutions for this problem? Thanks.
I use SQLExpress2005 and I search about this problem , this is a BUG in MsSql 2000 but I use sql Express 2005.although in my table I set IDENTITY_INSERT on (master Key)Please help me
I am having issues getting this to work. I have the user login to a page to
put in a request for vacation. When they login, I have a label that isn't
visible that is equal to their User.Identity.Name.
I select the user from the employee table where the username = the label User
Identity Name and pull in the emp_id which is the primary key that identifies
I need to insert the request into the request table with the emp_id from the
select statement, without showing the em_id on the screen. I tried using a
hidden field and assigning the emp_id as the value, but it isn't working.
Not sure if this is the best way to do this. Really new to ASP.NET 2.0 so I
really appreciate any help.
Do anybody know how to fix this error?
Cannot insert explicit value for identity column in table 'Gallery' when IDENTITY_INSERT is set to OFF.?
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
MessageBox.Show("New Client is saved")
MessageBox.Show("User cancelled operation")
addclient = Nothing
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"
Hi there,I'm new to sql server. I've created a table which can be updated through an aspx form. However coming from an access background I don't know how to generate an auto number. I've read through a number of the threads on here and keep coming across Identity or unique identifier. However I can't actually find out how to implement these.Any help would be greatCheersStu
I use the identity = yes for my unique columns in most of my tables that need it. I am trying to decide if I should change identity = no, and instead manually update my unique number column myself by adding one when I insert new rows.
The reason I want to do this is for maintainabilty and ease of transfering data for backup to other sql servers. I always have trouble keeping the identity numbers to stay the same as they are in the original database because when they are transfered to a db that has identity = yes, the numbers get rearranged.
It will also make it easier to transfer data from original db to another sql server db and use the data right away without having to configure the destination db to disable identity and then enable it, etc.
Any pro's con's appreciated,
Hi, for some reason I want to have a unique ID with a seed and random Identity increment (I want an ascending ID's but without able to know how many objects there are).
thanks in advance
I have a table EugeneTest(id_num, fname, minit, lname)where field "id_num" is type IDENTITY and has UNIQUE constraintLet's say 2 user execute this code at the same time:DECLARE @return integeruse EugeneTestINSERT employees( fname, minit, lname)VALUES( 'Eugene3', 'F', 'Josephs')SET @return = @@IDENTITYIs is not possible to get duplicated value in id_num column becuase ofUNIQUEconstraint, but is it possible the both user get the same @@IDENTITYnumber( for example, if @@IDENTITY is evaluated and kept somewhere in thebuffer before the data actually get written to the disk )Thanks, Eugene
What I want to do is: insert into newtable (field1, field2, sequence) select
(fielda, fieldb, #) from oldtable and have the sequence field "re-seed" to 1 every time the value in fielda/field1 changes. This added requirement makes this not an identity field problem, if I understand identity fields. This is a data conversion problem, so I'm converting 1000's of rows from oldtable to newtable and want the sequence to re-seed at every change in value of the fielda/field1 data; in fact fielda/field1 is a simplification as there could be multiple controlling fields forcing a re-seed.
I'd like to use a stored procedure to insert large amounts of recordsinto a table. My field A should be filled with a given range ofnumbers. I do the following ... but I'm sure there is a better(faster) way:select @start = max(A) from tbl where B = 'test1' and C = 'test2'while @start <= 500000begininsert into tbl (A, B, C)values (@start, 'test1', test2')set @start = @start +1endanother question is, how to prevent that another user inserts the samenumbers into the field A?Thanks a lot for any help!ratu