Replication :: Add A Not Null Column To Existing Table

Aug 27, 2015

We have a requirement to add a not null column to an existing table.

I created the column with null and updated with single quotes, and then converted the column into not null.

Now, I can see in the publisher, it went fine. but in the subscribers, i'm getting the error as, can not insert null value. I then tried to make column as null to resolve the issue, but still it is holding the same error and not proceeding further.

Now I even dropped the column. still same issue. how can I resolve this issue? I'm using sql server 2008 R2 with SP3. replication type is Merge replication.

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Jun 11, 1999

I am trying to drop the "allow nulls" characteristics on an existing table
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Hope someone can help, many thanks in advance

Greetings from Vienna Austria

landau

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-----------
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When I am using this query:

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go

Note:
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I get this runtime error:

Msg 1779, Level 16, State 0, Line 1
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Msg 1750, Level 16, State 0, Line 1

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thanks in advance

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Jan 17, 2002

Hi,

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Regards
Don

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4. <<<>>>
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If I alter a table and add a column, would this column automatically get picked up in replication?

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[3] [bigint] NULL,
[4] [bigint] NULL,
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[Code] ....

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Apr 23, 2007

Hi,



I'm merge replicating a SQL Server 2005 database (publisher) to SQL Compact databases (subscribers) on mobile devices. I understood that I could add a "not null" column to a replicated table on the server as long as I specified a default value, but it seems this is not possible. I ran the following script on the server database:



ALTER TABLE Activity ADD ActivityRequiresProject bit not null default(0)



which executed OK. When I went to synchronize the db on the mobile device I got the following error:



Alter table only allows columns to be added which can contain null values. The column cannot be added to the table because it does not allow null values.
The SQL statement failed to execute. If this occurred while using merge replication, this is an internal error. If this occurred while using RDA, then the SQL statement is invalid either on the PULL statement or on the SubmitSQL statement. [ SQL statement = alter table "Activity" add "ActivityRequiresProject" bit not NULL constraint "DF__Activity__Activi__4A47DDAE" default ( ( 0 ) ) ]



Does anyone know if this is a valid error? Is is possible to add a not null column with default, and if not how do I update the schema on a replicated database?



Regards,



Greg







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I have a excel file which has a column called "Code" and their values are A,B,C,D,E,F,G,H.  I want to create a new column called "status" based on the values of "Code".

Code:

A
B
C
D
E
F
G
H

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I'm new to replication and am trying to determine the best approach to add a column (NOT NULL with no DEFAULT) to a replicated table. The only success I have had is if I do the following:

Delete entire Subscription
Delete entire Publication
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Create new Publication
Create new Subscription
Run SnapShot

The problem with this approach is that each step affects the entire database and not just the modified table. I think it is inefficient to redo replication for a simple object change. What am I missing? Is there a way to only replicate the changes made to the one table without having to run a SnapShot for the entire publication?
Keep in mind the column must be defined as NOT NULL and cannot have a Default.

Thanks, Dave

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Currently it is taking around 6 hours.

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