/// <summary>
/// 平均值
/// </summary>
/// <param name="functionHandle">函数</param>
/// <param name="param">字段</param>
/// <returns></returns>
public static BQLAggregateFunction Avg(BQLParamHandle param)
{
BQLAggregateFunction item = new BQLAggregateFunction(DBAggregateFunction.DoAvg, param);
item.ValueDbType = DbType.Double;
return(item);
}
/// <summary>
/// 总行数
/// </summary>
/// <param name="functionHandle">函数</param>
/// <param name="param">字段</param>
/// <returns></returns>
public static BQLAggregateFunction Count(BQLParamHandle param)
{
BQLAggregateFunction item = new BQLAggregateFunction(DBAggregateFunction.DoCount, param);
item.ValueDbType = DbType.Int32;
return(item);
}
//IAggregateFunctions agf = DbAdapterLoader.Aggregate;
/// <summary>
/// 总计
/// </summary>
/// <param name="functionHandle">函数</param>
/// <param name="param">字段</param>
/// <returns></returns>
public static BQLAggregateFunction Sum(BQLParamHandle param)
{
BQLAggregateFunction item = new BQLAggregateFunction(DBAggregateFunction.DoSum, param);
item.ValueDbType = DbType.Double;
//item.ValueDataType = DefaultType.DoubleType;
return(item);
}
/// <summary>
/// 最大
/// </summary>
/// <param name="functionHandle">函数</param>
/// <param name="param">字段</param>
/// <returns></returns>
public static BQLAggregateFunction Max(BQLParamHandle param)
{
BQLAggregateFunction item = new BQLAggregateFunction(DBAggregateFunction.DoMax, param);
return(item);
}
