SQL Server : ALTER TABLE ADD COLUMN MAXDOP=1

问题

I am trying to suppress parallelism in SQL Server while altering a table to add a column with the option maxdop=1. However I get an error in the syntax. I tried several ways but I can make it work, does anybody know how to use this option when adding a column?

ALTER TABLE [dbo].[mytable] 
ADD neColumn varchar(max)
WITH (MAXDOP = 1);

回答1:

Pretty sure you can't use query hint for an alter table.

See list at https://msdn.microsoft.com/en-us/library/ms181714.aspx

Depending on what you want to do, you may want to set the server parallelism to 1 before you run your query and set it back to its initial value once you are done.

check https://msdn.microsoft.com/en-us/library/ms189094.aspx to do so.

来源：https://stackoverflow.com/questions/37023344/sql-server-alter-table-add-column-maxdop-1