Identity Column Resetting
May 2, 2001If there are gaps ( due to deletions ) in indentity column, how do I
resequence the values ? As well as how to reset the last used number ?
Info. is greatly appreciated.
Ivan
If there are gaps ( due to deletions ) in indentity column, how do I
resequence the values ? As well as how to reset the last used number ?
Info. is greatly appreciated.
Ivan
I am trying to reset an IDENTITY RowNumber
back to 1 in a query when the Person's Name is the same. The following query
can be used agains the pubs database in SQL Server.
I am trying to figure out where to place the section for the DBCC CHECKIDENT item in order to reset the RowNumber back to 1 when ever the lname column is the same. For example if the pub database had duplicate records for a given employee the RowNumber would reset back to 1.
CREATE TABLE #RowNumber (
RowNumber int IDENTITY (1, 1),
emp_id char(9) )
--DECLARE @seed int
--SET @seed = 1
--DBCC CHECKIDENT ('#RowNumber', RESEED , @seed) WITH NO_INFOMSGS
INSERT #RowNumber (emp_id)
SELECT emp_id
FROM employee
ORDER BY lname
SELECT RowNumber, e.emp_id, lname, fname, job_id
FROM #RowNumber r JOIN employee e
ON r.emp_id = e.emp_id
ORDER BY RowNumber
DROP TABLE #RowNumber
Ganesh
I've seen a lot of solutions to reset the an Identity Field, but the one I found in the website I mentioned worked fine in SQL 2005 Express Edition.
http://www.howtogeek.com/howto/database/reset-identity-column-value-in-sql-server/
The other solutions in SQL 2005 that use ALTER TABLE and ALTER COLUMN just don't work, I don't no Why.
Paulo Alexandre
What is the easiest way in T-SQL to reset the identity values of
the PK columns in a DB. Here's the scenario.
I'm going to be backing up a HUGE DB and then restoring
it to a new server. Once there I will run an SP to remove all the existing
data. The tables are now row-free. However my customer doesn't like that
the first record they add gets PK value of 5,321, or whatever.
After I remove all the data how can I reset the ids?
It would be nice to add some code to my sp_cleardb
that would go back and reset the identity columns
FYI
All of my tables use auto-incrementing identity fields with a seed of 1
1) I know how to do it in enterprise manager, but I need it in scripting
since I'll have to do it on hundreds of tables
2) I tried using alter table to drop the PK constraint, but that requires
knowing the pk constraint name, which is SQL generated and I won't know.
I think I got very close, but the code was just getting too big. I thought,
there must be an easier function to use, or a built in SP, or something?
Anyone know how to script this?
THanks in advance.
Josh
Can anyone tell me of a way to reset the value of an Identity field back to its seed value after all the rows in a given table have been deleted and I try to re-populate it? There are foreign key relationships so I cannot just drop and recreate the table, and I really need to address this issue from within sql, rather than from the application.
Thanks, any and all guidance would be great :)
Hi,
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 used a lot of fictitious data in order to test the code of my web site. But I noticed that when I deleted all fictitious data from the tables, the primary key columns keep creating automatically numbers that are above the last one before all data was erased instead of starting again from number 1. How do I reset this automatic numeration in order to restart from 1 again ?
View 3 Replies View RelatedI used a lot of fictitious data in order to test the code of my web site. But I noticed that when I deleted all fictitious data from the tables, the primary key columns keep creating automatically numbers that are above the last one before all data was erased instead of starting again from number 1. How do I reset this automatic numeration in order to restart from 1 again ?
View 2 Replies View RelatedI have four columns in my table, the first one is the identity column
col1 Col1 col2 col3
1 12 1 This is Test1
2 12 2 This is Test1
3 12 3 This is Test3
4 12 4 This is Test4
5 12 5 @@@@@
When, I see, @@@ sign in my col4, I need to restart the col3 from 1 again so it will look like this
col1 Col2 col3 col4
1 12 1 This is Test1
2 12 2 This is Test1
3 12 3 This is Test3
4 12 4 This is Test4
5 12 5 @@@@@
6 12 1 This is another test1
7 12 2 This is another Test2
Is it possible to do that?
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 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 RelatedI'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
Hi all,
The requirement is to have a table say 'child_table', with an Identity column to refer another column from a table say 'Parent_table'..
i cannot implement this constraint, it throws the error when i execute the below Alter query,
ALTER TABLE child_table ADD CONSTRAINT fk_1_ct FOREIGN KEY (child_id)
REFERENCES parent_table (parent_id) ON DELETE CASCADE
the error thrown is :
Failed to execute alter table query: 'ALTER TABLE child_table ADD CONSTRAINT
fk_1_ct FOREIGN KEY (child_id) REFERENCES parent_table (parent_id) ON DELETE
CASCADE '. Message: java.sql.SQLException: Cascading foreign key 'fk_1_ct' cannot be
created where the referencing column 'child_table.child_id' is an identity column.
any workarounds for this ?
Hi guys,
If I have a temporary table called #CTE
With the columns
[Account]
[Name]
[RowID Table Level]
[RowID Data Level]
and I need to change the column type for the columns:
[RowID Table Level]
[RowID Data Level]
to integer, and set the column [RowID Table Level] as Identity (index) starting from 1, incrementing 1 each time.
What will be the right syntax using SQL SERVER 2000?
I am trying to solve the question in the link below:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2093921&SiteID=1
Thanks in advance,
Aldo.
I have tried the code below, but getting syntax error...
ALTER TABLE #CTE
ALTER COLUMN
[RowID Table Level] INT IDENTITY(1,1),
[RowID Data Level] INT;
I have also tried:
ALTER TABLE #CTE
MODIFY
[RowID Table Level] INT IDENTITY(1,1),
[RowID Data Level] INT;
Hello;
My Memebership table has Guid column as Primary key.
But I would like to add Auto numbering Identity column to this table.
Is this idea OK or it will bring some problems?
Thank you in advance for your help
i have a table
table1
column1 int not null
column2 char not nul
column3 char
i want to script a change for table1 to alter column1 to be the table identity column. not primary.
Hi,
I have a column that is unique that I would like to make into an IDENTITIY column after I insert some data into it.
I tried
alter table <table_name>
alter column <col_name> int Identity (1,1)
but it fails.
Ajay
WORD4LIFE
(http://www.word4life.com)
Hi(SQL Server 2000)I have an existing table (t) with a column that is NOT an identity column(t.ID), but it has manually inserted "row numbers". I want to make thiscolumn become an identity column. This column is a key field to othertables, so I want to keep the row numbers that are allready inserted.From the Query Analyzer, how do I do this?Thanks in advance!Regards,Gunnar VøyenliEDB-konsulent asNORWAY
View 3 Replies View Related
Hi,
I have two tables table1 and new_table
Table1 has id_value column which is int and it is idenity specification is yes and identity increment is 1 .
And I have a NEW_TABLE with column name new_id which should store current id_value of Table1.
This type of functionality is requirement for my project.
I should get a current value of id_value from table1 . if I say SELECT * FROM NEW_TABLE ;
Please help me out to fix this issue
Thanks
Purnima
Hi, I want to change an int column (not null) to identity column. I tried
the following:
alter table myTable alter column ID int identity(10, 1) not null
But it failed with the error message:
Incorrect syntax near the keyword 'identity'.
Can someone please show me the correct statement (if it exists)>
Many thanks.
I have been trying to get the new sol_id that is added so I can use it in other code, but it is only returning 0. The new record is getting added to the table, but my varaiable myNewSolID is 0 in my response.write(myNewSolID)
I appeaciate any help!
Here is my steored procedure and my code:
ALTER PROCEDURE [dbo].[AddTrackings]
@DropDate datetime,
@Comment nvarchar(100),
@DateEntered datetime,
@EnteredBy nvarchar(50),
@Sol_ID Int OUTPUT
AS
INSERT INTO tblTrackings (DropDate, Comment, DateEntered, EnteredBy)
VALUES (@DropDate,@Comment,@DateEntered,@EnteredBy)
SET @Sol_ID=SCOPE_IDENTITY()
RETURN
Sub ProcessTracking()
Dim myNewSolID As Integer
Dim ConnectStr As String = _
ConfigurationManager.ConnectionStrings("2ConnectionString").ConnectionString
Dim MySQL As String = ""
If Me.chkDropSave.Checked Then
MySQL = "AddTrackings"
Dim MyConn As New SqlConnection(ConnectStr)
Dim Cmd As New SqlCommand(MySQL, MyConn)
Cmd.CommandType = CommandType.StoredProcedure
Dim InsertedInteger As New SqlParameter("@Sol_ID", SqlDbType.Int)
InsertedInteger.Direction = ParameterDirection.Output
Cmd.Parameters.Add(InsertedInteger)
Dim MySqlParamStart As New SqlParameter("@DropDate", SqlDbType.DateTime)
Cmd.Parameters.Add(MySqlParamStart)
MySqlParamStart.Value = Me.BasicDatePickerDropDate.SelectedValue
Dim MySqlParamAmtTo As New SqlParameter("@Comment", SqlDbType.NVarChar, 100)
Cmd.Parameters.Add(MySqlParamAmtTo)
MySqlParamAmtTo.Value = Me.txtComment.Text
Cmd.Parameters.AddWithValue("@DateEntered", Now())
Cmd.Parameters.AddWithValue("@EnteredBy", Profile.UserName)
Try
MyConn.Open()
myNewSolID = Cmd.ExecuteScalar()Response.Write(myNewSolID)
Catch ex As Exception
Response.Write(ex.Message)
Finally
MyConn.Close()
End Try
Else
End If
End Sub
Hi to all, Using sql query i want to check whether the column is Identity column or not? Please members reply me.
View 2 Replies View RelatedHaving an identity column in target table, how do I use SQL 7 DTS ?
In Import wizard, I chose 'ignore' in source, checked Enable Indenity Insert - DTS failed with a msg like - a column cannot have NULL...
In DTS package, had Fast load and Enable Indenity checked - no luck !
Unchecked Enable identity, do luck.
What would be the standard procs for this since this sounds like a very common
senario.
What I am expecting is to insert from source and SQL would take care identity column automatically.
Appreciate your help very much !
-Ivan
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I want to know how to reset the identiy column when i delete a row from the existing table.
Example:
I have a table a with id (identity incr value 1) and name
I have 10 records inserted into it.,which would be from 1...thru...10 i delete a record say 5 then i have 1,2,3,4,6,7,8,9,10, now i want them to be rearranged to systamatic order like 1,2,3,4,5,6,7,8,9 how can i do this.
Thanks in advance,
Shaheen
"God Bless America"
I have a table that has a field that will not accept null values. I was trying to create a new table with a new field that would accept null values. I would then drop the original table and rename the new table. The problem is my key field has the Identity column (Autonumber) turned on. This allows the recordID to be automatically generated. Is there anyway to bypass the Identity Column feature and still keep it there future records? I already tried the "with Nocheck Clause" but does not work.
View 2 Replies View RelatedHow does one bcp data INTO a MS SQL Server table that includes an IDENTITY column from a text file that does NOT include a value for the IDENTITY column? Surely, this must be a common process?
View 3 Replies View RelatedKudos to y'all! On most of my tables, I'm using a column of data type numeric and properties set as Identity with no replication. Now I know that it can handle only a length of 9 and obviously not nullable. Now by length of 9, does it mean in bytes or literal digits. If it is, then that would mean that it would reach only up to 999,999,999. What happens then if it reaches that digit?
View 7 Replies View RelatedHow do you insert into a table that has an identity column aset of rows with predefined values for the identity column.
I have tried to Set Identity_insert off and then insert but it didnt work.
any ideas?
can i add null to identity type column
View 5 Replies View RelatedHi frnds
I have a table with two columns eid , ename . eid set identity(1,1).
After inserting 10 rows how can we insert a user defined eid ?
need help
Thanks & Regards
Zakeer
Hi,I would like a piece of advice.I have 3 foreign keys in a table used as primary keys for this table.Is it useful in that case to have just one identity column that wouldbe used as the unique primary key, thus no need to have 3 primary keys?Advantages vs Drabacks ?Regards
View 7 Replies View RelatedHi Everyone:
I am new to Mobile programming. I am now working on a mobile project. I encounter an issue when I sync the data:
cause I can't modify the schema, so I have to use RDA instead of Merge replication on sql server 2005.
However, There is an identiy column on each table I will pull them down to local mobile database. And I will use those identity columns to connect tables. Even worse, the photo's new name will combine the photoID which is an identity column. There would an issue, if i sync data, the photoID would be same on different local mobile databases. And there would be generate same identity value when users sync data.
How can I avoid those issues? If you have any good ideas, please help me out so that I can meet the project deadline.
Thanks
James