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

If you want to reenumerate the values of an identity field, because for instance the values have gone mad, just do as follows:

• open table in design mode click on Identity Specification

  mark (is identity) as NO (Your identity field is still a PK)

  close and save design

• open table in edit mode Change the values of your Identity field as desired (just be aware you cannot have duplicate values)

• Close the table and open it again in design mode Replace your identity field (is identity) to Yes.

  Close the table and you are done.