関連ワード:  sql server add unique id column to existing table    sql server add id column to existing table    sql server add identity column to existing table    sql server add identity column to existing table as primary key    sql server add identity column to existing table with data    sql server add new identity column to existing table    sql server add identity field to existing table    sql server add id column auto increment to existing table    sql add identity to existing column    sql add id column to existing table  
結果 : sql server add unique id column to existing table