Update values in identity column

Question

How do I override the identity column in MSSQL? I tried :

    SET IDENTITY_INSERT GeoCountry ON
    UPDATE GeoCountry SET CountryID = 18 WHERE C         


        

Answer 1

You could also do this in one statement using delete into, this has the benefit of eliminating any error copying/moving the row data, for example

set identity_insert [dbo].[MyTableName] on

delete from [dbo].[MyTableName]
output 
,
[deleted].[Col1], 
[deleted].[Col2], 
[deleted].[Col3], 
into 
[dbo].[MyTableName] (
[IdColumnName], 
[Col1], 
[Col2], 
[Col3])
where
[IdColumnName]=

set identity_insert [dbo].[MyTableName] off