The timeout period elapsed prior to completion of the operation.. The exception was raised by the IDbCommand interface. The command has been canceled.. There is a way to work around this limit if ...

如果大家读过dapper源码，你会发现这内部有很多方法都用到了yield关键词，那yield到底是用来干嘛的，能不能拿掉，拿掉与不拿掉有多大的差别，首先上一段dapper中精简后的Query方法，先让大家眼见为实。 骨架代码其实很简单 ...

One of the most common errors you’ll see when working with Power Query in Power BI or Excel is this: Expression.Error: The key didn’t match any rows in the table It can occur with almos… ...

They also implement the abstract interfaces IDbConnection, IDbCommand, and IDbDataReader, which allows for mocking scenarios and non-traditional data sources.

Support loading data from an IDbCommand object on the module level#31 ...

DbCommand.ExecuteReaderAsync () does not have a matching IDbCommand.ExecuteReaderAsync () definition. Similarly for all the other execute methods. Is there some design consideration that is preventing ...

System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +130 ...

private static IDbCommand SetupCommand (IDbConnection cnn, IDbTransaction transaction, string sql, Action<IDbCommand, object> paramReader, object obj, int? commandTimeout, CommandType? commandType) ...