how to set on identity_insert in sql code example

Example 1: identity insert on sql server

SET IDENTITY_INSERT sometableWithIdentity ON

INSERT sometableWithIdentity (IdentityColumn, col2, col3, ...)
VALUES (AnIdentityValue, col2value, col3value, ...)

SET IDENTITY_INSERT sometableWithIdentity OFF

Example 2: set identity_insert off

SET IDENTITY_INSERT [ [ database_name . ] schema_name . ] table_name { ON | OFF }