sql 字符串连接

const string FMCG_BASH = "清除重复商品";

             var sqls = new List<string>();

             //// Fmcg

             sqls.Add(string.Format(@"UPDATE base_fmcg SET `Status`={0},Remark = CONCAT(IFNULL(Remark,''), ';', {2}) WHERE ID='{1}';"

                 , Constants_StatusCode.dBRowStatus_Deleted

                 , _p2

                 , FMCG_BASH));

字符串连接：Remark = CONCAT(IFNULL(Remark,''), ';', {2})
const：常量,具有不可变性