関連ワード:  last 4 characters of string sql    get last 4 characters of string sql    get last 4 characters of string sql server    get last 4 characters of string oracle sql    sql server last 4 characters of string    remove last 4 characters from string sql    remove last 4 characters from string sql server    first 4 characters of string sql    get last four characters string sql    substring last 4 characters sql