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我在尝试将ac#脚本任务用作SSIS 2012中的数据流任务的数据源时遇到问题。我有一个更大的查询,运行,但现在我只想证明,这将工作,但到目前为止它不会。下面是代码,并且只返回一个字段,但是一旦它到达last name = reader.getstring()的行,它将抛出一个异常,表示没有可用的行/列数据。我知道一个事实,查询返回10行,不知道发生了什么。我在这个链接下面写了代码:https://msdn.microsoft.com/en-us/library/ms136060.aspxSSIS 2012 C#脚本任务数据源 - 没有行数据
有什么建议吗?
using System;
using System.Data;
using Microsoft.SqlServer.Dts.Pipeline.Wrapper;
using Microsoft.SqlServer.Dts.Runtime.Wrapper;
using System.Data.OleDb;
[Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute]
public class ScriptMain : UserComponent
{
OleDbDataReader reader;
OleDbConnection myConnection;
OleDbCommand myCommand;
public override void PreExecute()
{
base.PreExecute();
string sConnectionString = "Provider=MSDAORA.1;User ID = USER;Password=PASS;Data Source=SERVER;persist security info = false";
// string oracleQuery = Variables.OracleSQL;
string oracleQuery = "select Name from Name_Table where rownum < 10";
myConnection = new OleDbConnection(sConnectionString);
myCommand = new OleDbCommand(oracleQuery, myConnection);
myConnection.Open();
reader = myCommand.ExecuteReader();
}
/// <summary>
/// This method is called after all the rows have passed through this component.
///
/// You can delete this method if you don't need to do anything here.
/// </summary>
public override void PostExecute()
{
base.PostExecute();
reader.Close();
/*
* Add your code here
*/
}
public override void CreateNewOutputRows()
{
Output0Buffer.AddRow();
Output0Buffer.Name = reader.GetString(0);
}
}
您在查询中选择了一个字段(名称),那是为什么? – Alex