Dropping The Identity Propert From A Column

Feb 10, 2003

Hi,

I'm creating a VB program that does some DB manipulations.

I need a programmatic to drop the Identity property (not the column data) so that the field will be just an Integer with the old data...

It seems like the only way is the EM way (creating a temp table with no identity on the column, copying the data into it, deleting the old table, and re-naming the temp...)
I'm looking for a more inovative way, or possibly a way to automate the process (so I'll be able to do this for all tables in a database in a modular way).

Thanks a bunch
Moshe

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Dropping Or Removing The Identity Property From An Existing Column

Mar 7, 2008

How do i drop/remove the identity property for an existing column in all Tables where the Identity column is a primary key.
The Script below was used to find all the tables that have an Identity Column as a primary key in a database. Now i want to remove the identity property from the Identity Columns that have a primary key in the database.


select pk.table_name, c.column_name,

from information_schema.table_constraints pk

INNER JOIN information_schema.key_column_usage c ON c.TABLE_NAME = pk.TABLE_NAME

and c.constraint_name = pk.constraint_name

where constraint_type = 'PRIMARY KEY'

and COLUMNPROPERTY(object_id(pk.table_name), column_name, 'IsIdentity') = 1

ORDER BY pk.table_name, c.column_name

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Dec 19, 2001

Hi,

I have a VB script that I am using to run various DTS procedures. One of these involves using DataPumpTransformCopy to copy data from one table to another. The destination table has an Identity field that I would like to disable for the duration of the Transform.

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I figure I need to try using the ALTER TABLE to disable the IDENTITY but I can't find an example of how to do this anywhere.. can anyone help me out here?

Many Thanks,

Seoras

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Hi,

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Also, does this code look correct?

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declare @max2 int
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select @max2 = max(cwid) from cms_3a
alter table cms_4a add cwtid int identity(@max2, 1) <------ Error

I do not have identities on tables cms_3a and cms_4a, but I do have an identity on cms_2a.

Thank you!

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~Mohan

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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.

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Select
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Aug 1, 2014

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

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Oct 16, 2006

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,

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the error thrown is :
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any workarounds for this ?

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Sep 7, 2007

Hi guys,
If I have a temporary table called #CTE
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[Name]
[RowID Table Level]
[RowID Data Level]
and I need to change the column type for the columns:
[RowID Table Level]
[RowID Data Level]
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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),
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Hi,

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I tried

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but it fails.


Ajay

WORD4LIFE
(http://www.word4life.com)

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Apr 2, 2007



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.



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Dec 17, 2001

Hi, I want to change an int column (not null) to identity column. I tried
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Incorrect syntax near the keyword 'identity'.

Can someone please show me the correct statement (if it exists)>

Many thanks.

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Nov 8, 2007

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 

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What would be the standard procs for this since this sounds like a very common
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