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Continue to ChatAdd NOT NULL field in Sql Server without affecting existing records of table https://dotnetexpertteam.wordpress.com/2018/08/23/add-not-null-field-in-sql-server-without-affecting-existing-records/
Add NOT NULL field in Sql Server without affecting existing records of table https://dotnetexpertteam.wordpress.com/2018/08/23/add-not-null-field-in-sql-server-without-affecting-existing-records/