Creating Identity Thru Alter Ste.

Sep 14, 2000

I am not able to create identity on a existing column using ALTER statement.
Can anybody help on this issue ?

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TSQL - Using ALTER TABLE - ALTER COLUMN To Modify Column Type / Set Identity Column

Sep 7, 2007

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;







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Alter Column To Identity

Aug 31, 2001

i am altering an int column to identity:
where is something wrong here?

error:

Server: Msg 156, Level 15, State 1, Line 1
Incorrect syntax near the keyword 'IDENTITY'.

statement:

ALTER TABLE Navigation Alter column [Navigation_ID] int IDENTITY(1,1)

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Feb 5, 2003

I'm attempting to remove the IDENTITY property from a column using the ALTER command but can't seem to find the right syntax. I've tried every conceivable combination I can think of. I can add the property to a column that doesn't have it.

It's easy to do in Enterprise Mgr., but I want to script the change.

I really don't want to drop the table and rebuild if I don't have to.

Sidney Ives

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May 2, 2008

HELLO All,

Does anybody knows how to set identity to column using ALTER Script.

Thanks in advance.

--kneel

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May 8, 2008

Hello All,
There is a table A in SQL. One of the column of A was IDENTITY before and was getting referenced in other table B.

During migration to SQL 2005, I removed the IDENTITY constraint and imported all the data from 2000 to 2005. Now I have to deploy the IDENTITY back to the column. I am getting an error while executing the code:

ALTER TABLE TableA
ALTER COLUMN ColumnA
ADD CONSTRAINT IDENTITY(445,1)


Can anyone tell me where I am going wrong? Or if there is any other way to do it. There are 50+ tables I need to do the same.

Thanks,
-S

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Feb 27, 2008

hello experts,

Any body know what is the query for modifying the identity column in a table? i mean modifying from IDENTITY column to int colum or VICE-VERSA

Thanks
Muthu

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How To Alter Column To Identity(1,1)

Jun 18, 2007

I tried



Alter table table1 alter column column1 Identity(1,1);

Alter table table1 ADD CONSTRAINT column1_def Identity(1,1) FOR column1



they all can not work,

any idea about this? thanks


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Mar 9, 2001

Hi,

I have been trying to figure out how to use ALTER TABLE/ COLUMN to modify a column from an IDENTITY column to one which is not an IDENTITY column.

I would like to do this so that I could add another column (using ALTER) and set it as the IDENTITY column.

Any thoughts?

Your help is much appreciated,
-Scott

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Apr 18, 2008

Is there any way to remove the IDENTITY property of a column? I originally used it, but it caused so many headaches with ADO.NET that I've decided to just increment the darn things manually. So I want to turn it into just a normal integer column.

If there's no direct way, can someone suggest a quick way to create a new column, copy all the old values into the new column, change the primary key to the new column, and drop the old column?

Thanks.

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Nov 9, 2003

How can I alter a table turning ON or OFF an IDENTITY field ?

for example:
if I had my DB with Client_ID as an I IDENTITY field and for some reason it has
changed to just INT (with no IDENTITY) - how can I tell it to be IDENTITY field again ?


+

Does anyone knows an article on database planning ?
(I wanna know when should I use the IDENTITY field)

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Oct 27, 2006

trying to change a column that is just a INT NOT NULL column, to have an auto-increment.


Code:

ALTER TABLE [ImpExpTables].[dbo].[ImpExp_eBayLocalNeedsDeleted]
ALTER COLUMN ID int IDENTITY(1,1) NOT NULL



just gives error at IDENTITY

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Apr 9, 2008

Pls help me

i want to alter table and add identinty constraint on one column

create table play8(id int)
" alter table play8
alter column id int identity(1,1) " GIVES ERROR or it is posibble


Yaman

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Jul 20, 2005

i need to alter all foreign keys in my database and uncheck the"Enforce relationship for replication" check box. Using the EM, Iextracted the code snippet below. unfortunately, when i run this testfrom query analyzer, then go back into the EM, the box is stillchecked.can anyone tell me what i am missing? any advice on unsetting thisattribute globally would be appreciated!BEGIN TRANSACTIONSET QUOTED_IDENTIFIER ONSET TRANSACTION ISOLATION LEVEL SERIALIZABLESET ARITHABORT ONSET NUMERIC_ROUNDABORT OFFSET CONCAT_NULL_YIELDS_NULL ONSET ANSI_NULLS ONSET ANSI_PADDING ONSET ANSI_WARNINGS ONCOMMITBEGIN TRANSACTIONALTER TABLE dbo.CustomerCustomerDemoDROP CONSTRAINT FK_CustomerCustomerDemo_CustomersGOCOMMITBEGIN TRANSACTIONALTER TABLE dbo.CustomerCustomerDemo WITH NOCHECK ADD CONSTRAINTFK_CustomerCustomerDemo_Customers FOREIGN KEY(CustomerID) REFERENCES dbo.Customers(CustomerID) NOT FOR REPLICATIONGOCOMMITthanks!!

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Feb 13, 2008

I am having problem when performing the alter table switch. Both tables are identical and have pk.

ALTER TABLE SWITCH statement failed. There is no identical index in source table 'LocalDeltanet.dbo.testresults' for the index 'PKIDX_testSummary' in target table 'LocalDeltanet.dbo.testresults_part' .



CONSTRAINT [PKIDX_testSummary] PRIMARY KEY CLUSTERED

( [testresult_id] ASC )

WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)

ON TResultsScheme (testresult_id) ) ON TResultsScheme (testresult_id)


I have performed the function on other tables successfully, but this is the first that has an identity column involved. Is there anything special that needs to be done?



[testresult_id] [int] IDENTITY(1,1) NOT NULL,

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Transact SQL :: Alter Non Identity Column To Identity Column

Aug 12, 2009

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'.

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Transact SQL :: ALTER Vs UPDATE When Creating A New Column With Default Value

May 8, 2015

I have a table with ~30M records. I'm trying to add a column to the existing table with default value and have noticed following ... When using alter with default value- (Executes more than 45 min and killed forcefully)

ex:  
ALTER TABLE dbo.Table_X Add is_Active BIT CONSTRAINT DF_Table_X_is_Active DEFAULT 'FALSE' NOT NULL
GO

When using update command after adding column with alter (without default value) it completes is 5 min.

ex:  
ALTER TABLE dbo.Table_X Add is_Active BIT NULL
GO
UPDATE Table_X SET is_Active = 0 WHERE is_Active IS NULL
GO

Why there is so much of difference in execution times ? I was just trying to understand internal behavior of the SQL in these two scenarios. 

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Mar 25, 2004

I need a view that will:
1) select the distinct values in a column (the easy part)
2) assign the equivalent of an identity column to each row containing the distinct value it returns.

For example TableA contains 25 records but one of the columns only contains three unique values (say, 'A','B', & 'C').

This is what I want my view to return:

1 A
2 B
3 C

In other words, I need the view to assign the 1, 2 and 3 to the individual rows.

Thanks in advance for any pointers on this one.

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Nov 20, 2013

I have created a table as below mentioned. Then I want to alter the ID column as identity(1,1) without dropping the table as well as losing the data.

create table dbo.IdentityTest
(
id int not null,
descript varchar(255) null,
T_date datetime not null
)

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Jun 26, 2006

Hi. I am trying to figure out the code for sorting a manual (non-identity) number column in my table. the purpose is to
show the user's pictures in perfect order (1,2,3,4,5,6...).

The Jist of my problem... When a user first inserts six pictures, he gets:

|1|
|2|
|3|
|4|
|5|
|6|

All is good. But, say he deletes picture |3|. Now the list order looks like this:

|1|
|2|
<- |3| is removed
|4|
|5|
|6|

And, then he inserts two more pictures, now he his this:

|1|
|2|

|4|
|5|
|6|
|7| <- |7| & |8| are added
|8|

What i want to acheive is a "reshuffling" of the number order every time a picture is removed. So, when |3| is removed, |4| becomes |3|, |5| becomes |4| and so on. There should never be a gap in the order.

I am new to stored procedures, and have been trying to figure this out. Below is my guesswork:


Code:


ALTER PROCEDURE dbo.sp_NewPersonalPic

(
@photo_name VARCHAR(50) = NULL,
@photo_location VARCHAR(100) = NULL,
@photo_size VARCHAR(50) = NULL,
@user_name VARCHAR(50) = NULL,
@photo_caption VARCHAR(150) = NULL,
@photo_default BIT = NULL,
@photo_private BIT = NULL,
@photo_number INTEGER = NULL,
@photo_date DATETIME = NULL
)

AS

BEGIN
SELECT @photo_date = CONVERT(DATETIME,convert(char(26), getdate(), 109))
END

BEGIN
SET @photo_number = 1
SELECT

@photo_number = (
SELECT COUNT(*)
FROM dbo.PersonalPhotos b
WHERE
a.photo_date < b.photo_date
)
FROM
dbo.PersonalPhotos a
ORDER BY
a.photo_date
END

BEGIN



My thinking is that it would be a safe bet to use the "photo_date" column as a litmus for my "photo_number" column (ie, the most recent record inserted by the user will always be at a later date than the previously inserted record). So:

photo_number photo_date
|1| 2006-06-26 21:43:36.653
|2| 2006-06-26 21:43:50.000
|3| 2006-06-26 21:45:25.217
|4| 2006-06-26 21:45:33.763
|5| 2006-06-26 22:39:42.670
|6| 2006-06-26 22:39:49.200

If |3| is removed above, the numbers are reordered based on the time of entry sequence.

Any suggestions on how to acheive this in my stored procedure? Currenly, i get the correct order, but it goes crazy when i delete and add.

Thanks and sorry for the verbose post.

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Aug 12, 2014

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Aug 3, 2006

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.

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Jul 23, 2005

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Jul 20, 2005

I would like to add an Identity to an existing column in a table using astored procedure then add records to the table and then remove the identityafter the records have been added or something similar.here is a rough idea of what the stored procedure should do. (I do not knowthe syntax to accomplish this can anyone help or explain this?Thanks much,CBLCREATE proc dbo.pts_ImportJobsas/* add identity to [BarCode Part#] */alter table dbo.ItemTestalter column [BarCode Part#] [int] IDENTITY(1, 1) NOT NULL/* add records from text file here *//* remove identity from BarCode Part#] */alter table dbo.ItemTestalter column [BarCode Part#] [int] NOT NULLreturnGOSET QUOTED_IDENTIFIER OFFGOSET ANSI_NULLS ONGOhere is the original tableCREATE TABLE [ItemTest] ([BarCode Part#] [int] NOT NULL ,[File Number] [nvarchar] (20) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_File Number] DEFAULT (''),[Item Number] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Item Number] DEFAULT (''),[Description] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Description] DEFAULT (''),[Room Number] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Room Number] DEFAULT (''),[Quantity] [int] NULL CONSTRAINT [DF_ItemTest_Quantity] DEFAULT (0),[Label Printed Cnt] [int] NULL CONSTRAINT [DF_ItemTest_Label Printed Cnt]DEFAULT (0),[Rework] [bit] NULL CONSTRAINT [DF_ItemTest_Rework] DEFAULT (0),[Rework Cnt] [int] NULL CONSTRAINT [DF_ItemTest_Rework Cnt] DEFAULT (0),[Assembly Scan Cnt] [int] NULL CONSTRAINT [DF_ItemTest_Assembly Scan Cnt]DEFAULT (0),[BarCode Crate#] [int] NULL CONSTRAINT [DF_ItemTest_BarCode Crate#] DEFAULT(0),[Assembly Group#] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Assembly Group#] DEFAULT (''),[Assembly Name] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULLCONSTRAINT [DF_ItemTest_Assembly Name] DEFAULT (''),[Import Date] [datetime] NULL CONSTRAINT [DF_ItemTest_Import Date] DEFAULT(getdate()),CONSTRAINT [IX_ItemTest] UNIQUE NONCLUSTERED([BarCode Part#]) ON [PRIMARY]) ON [PRIMARY]GO

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Oct 8, 2007

I am using sql server ce.I am changing my tables sometimes.how to use 'alter table alter column...'.for example:I have table 'customers', I delete column 'name' and add column 'age'.Now I drop Table 'customers' and create again.but I read something about 'alter table alter column...'.I use thi command but not work.I thing syntax not true,that I use..plaese help me?



my code:
Alter table customers alter column age

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Jul 9, 2006

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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Jun 30, 2006

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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Jan 25, 2015

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Sep 19, 2005

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Jun 19, 2008

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

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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

* I can't change anything on T

* The PK is NOT an Identity

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Jan 28, 2008



Hi,

If I want to automatically insert a record which has default value in a table,
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Jun 23, 2000

I have SQL Server 7.0 running on both development and production boxes. The syntax below runs fine on my development box, but I am getting an error on my production box. Thanks for your help

ALTER TABLE SUPPORTINFO
ALTER COLUMN STORENUMBER VARCHAR(20)

Error Message:

Server: Msg 170, Level 15, State 1, Line 2
Line 2: Incorrect syntax near 'COLUMN'.

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