数据库中设置了错误的数据

Question

我有一个方法来更新 DB2 数据库中的记录：

private void updateRecord()
{
    String query = String.Format(@"  UPDATE {0}
        SET CCDESC = @CCdesc, 
            CCSDSC = @CCsdsc, 
            CCNOT1 = @CCnot1, 
            CCNOT2 = @CCnot2,
            CCUDC1 = @CCUdC1,
            CCUDC2 = @CCudc2,
            CCUDC3 = @CCudc3,
            CCRESV = @CCresv,
            CCMNDT = @CCMNDT,
            CCMNTM = @CCMNTM,
            CCMNUS = @User
        WHERE CCTabl = @CCTabl AND CCCode = @CCCode"
       , table);
    Dictionary<String, Object> para = new Dictionary<String, Object>()
        {
            {"@CCTabl", OLDDetail.TableID},
            {"@CCCode", OLDDetail.primaryCode},
            {"@CCdesc", detail.tableDescription},
            {"@CCsdsc", detail.shortDescription} ,
            {"@CCnot1", detail.note1},
            {"@CCnot2", detail.note2}, 
            {"@CCUdC1", detail.udc1} ,
            {"@CCudc2", detail.udc2} ,
            {"@CCudc3", detail.udc3} ,
            {"@CCresv", detail.reservation},
            {"@CCMNDT", detail.maintainedDate},
            {"@CCMNTM", detail.maintainedTime},
            {"@User", this.user.username}
        };
    database.executeQuery(query, para);
}

当我查看数据库时，字段“ CCMNUS ”具有与“ CCMNDT ”相同的值。我不明白为什么会这样。

这是写入服务器的方法：

        public void executeQuery(String query, Dictionary<String, Object> para)
    {
        database.con.Open();
        using (database.cmd = new iDB2Command(query, database.con))
        {
            database.cmd.CommandType = CommandType.Text;
            foreach (var value in para)
            {
                database.cmd.Parameters.AddWithValue(value.Key, value.Value);
            }
            database.cmd.ExecuteNonQuery();
        }
        database.con.Close();
    }