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Rowguid Column
I have a question regarding 'rowguid' column.
I have created a table that includes a rowguid column.
The syntex that i used to create the table is as below:
Create table mytable
(
process_id uniqueidentifier,
Date datetime,
processdesc nvarchar(300)
)
Now, the inserts in this table are giving me the values as nulls for process_id column.
Then, I came to know the correct syntex would have been
Create table mytable
(
process_id uniqueidentifier default newid(),
Date datetime,
processdesc nvarchar(300)
)
default newid() is given in order to generate a unique value to the column.
Now i dont want to recreate the table aftre dropping.
I just want to alter the table by just adding 'default newid()' to it.
How can i do that????
thanks
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Try
ALTER TABLE .. ATLER COLUMN .. default newid()
If that doesn't work, then update should work
You can run UPDATE with set process_id=newid()
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