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C# DataStore.RunQuery方法代码示例

本文整理汇总了C#中DataStore.RunQuery方法的典型用法代码示例。如果您正苦于以下问题:C# DataStore.RunQuery方法的具体用法?C# DataStore.RunQuery怎么用?C# DataStore.RunQuery使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在DataStore的用法示例。


在下文中一共展示了DataStore.RunQuery方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Run

        /// <summary>Main run method for performing our calculations and storing data.</summary>
        /// <param name="dataStore">The data store.</param>
        /// <exception cref="ApsimXException">
        /// Could not find model data table:  + ObservedTableName
        /// or
        /// Could not find observed data table:  + ObservedTableName
        /// </exception>
        public void Run(DataStore dataStore)
        {
            if (PredictedTableName != null && ObservedTableName != null)
            {
                dataStore.DeleteTable(this.Name);

                DataTable predictedDataNames = dataStore.RunQuery("PRAGMA table_info(" + PredictedTableName + ")");
                DataTable observedDataNames  = dataStore.RunQuery("PRAGMA table_info(" + ObservedTableName + ")");

                if (predictedDataNames == null)
                    throw new ApsimXException(this, "Could not find model data table: " + ObservedTableName);

                if (observedDataNames == null)
                    throw new ApsimXException(this, "Could not find observed data table: " + ObservedTableName);

                IEnumerable<string> commonCols = from p in predictedDataNames.AsEnumerable()
                                               join o in observedDataNames.AsEnumerable() on p["name"] equals o["name"]
                                               select p["name"] as string;

                StringBuilder query = new StringBuilder("SELECT ");
                foreach (string s in commonCols)
                {
                    if (s == FieldNameUsedForMatch || s == FieldName2UsedForMatch || s == FieldName3UsedForMatch)
                        query.Append("I.'@field', ");
                    else
                        query.Append("I.'@field' AS '[email protected]', R.'@field' AS '[email protected]', ");

                    query.Replace("@field", s);
                }

                query.Append("FROM " + ObservedTableName + " I INNER JOIN " + PredictedTableName + " R USING (SimulationID) WHERE I.'@match1' = R.'@match1'");
                if (FieldName2UsedForMatch != null)
                    query.Append(" AND I.'@match2' = R.'@match2'");
                if (FieldName3UsedForMatch != null)
                    query.Append(" AND I.'@match3' = R.'@match3'");
                query.Replace(", FROM", " FROM"); // get rid of the last comma
                query.Replace("I.'SimulationID' AS 'Observed.SimulationID', R.'SimulationID' AS 'Predicted.SimulationID'", "I.'SimulationID' AS 'SimulationID'");

                query = query.Replace("@match1", FieldNameUsedForMatch);
                query = query.Replace("@match2", FieldName2UsedForMatch);
                query = query.Replace("@match3", FieldName3UsedForMatch);

                DataTable predictedObservedData = dataStore.RunQuery(query.ToString());

                if (predictedObservedData != null)
                    dataStore.WriteTable(null, this.Name, predictedObservedData);
                dataStore.Disconnect();
            }
        }
开发者ID:hol353,项目名称:ApsimX,代码行数:56,代码来源:PredictedObserved.cs


注:本文中的DataStore.RunQuery方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。