如何在SSIS中创建多个命令文本c＃

最初，我在我的ssis C＃脚本任务中定义了commandtext，该任务计算了表A的行数。现在我需要再添加两个commandtext来计算表b和C中的行因为我需要在我的自定义电子邮件中包含该查询的输出。如何在SSIS中创建多个命令文本c＃

try 
     { 
      dbConnection.Open(); 

      if (dbConnection.State == ConnectionState.Open) 
      { 
       OleDbCommand dbCommand = dbConnection.CreateCommand(); 
       dbCommand.CommandType = CommandType.Text; 
       dbCommand.CommandText = "select count(*) as Total_Source from [dbo].A"; 
       dbCommand.CommandText = "select count(*) as Total_Destination from [dbo].B"; 
       dbCommand.CommandText = "select count(*) as Total_Blank from [dbo].C where ColumnA = ''"; 
       OleDbDataReader dbReader = dbCommand.ExecuteReader(); 

       if (dbReader.HasRows) 
        dtResults.Load(dbReader); 

       string theSum = dtResults.Rows[0]["Total_Source"].ToString(); 
       string theSum1 = dtResults.Rows[0]["Total_Destination"].ToString(); 
       //string theSum2 = dtResults.Rows[0]["Count_Blank"].ToString();

我相信我需要为表B和C（这在上面的脚本中是不正确的）定义命令文本，但我不知道该怎么做。

感谢任何帮助！

来源

2017-09-22 mehtat_90

我还没有尝试过，但我认为如果CommandText是string属性，那么您将在每个句子上覆盖它，使用=运算符。在变量

//... 

OleDbCommand dbCommand = dbConnection.CreateCommand(); 
dbCommand.CommandType = CommandType.Text; 
var sb = new System.Text.StringBuilder(); 
sb.Append("select count(*) as Total_Source from [dbo].A;"); // Notice semicolon at the end of the string. 
sb.Append("select count(*) as Total_Destination from [dbo].B;"); 
sb.Append("select count(*) as Total_Blank from [dbo].C where ColumnA = '';"); 
dbCommand.CommandText = sb.ToString(); 
OleDbDataReader dbReader = dbCommand.ExecuteReader(); 

//...

来源

2017-09-22 19:15:42 Eliasib13

我没有成功追加较早尝试... –

我认为返回值被前面的查询结果覆盖，你需要分开每个查询并单独执行 – LONG

商店的数量和返回那些在一个选择 - 让您的这个SQL语句：

你可以试试这个

DECLARE @total_Source AS INT; 
DECLARE @total_Destination AS INT; 
DECLARE @total_Blank AS INT; 
SELECT @total_Source=Count(*) FROM [dbo].A; 
SELECT @total_Destination=Count(*) FROM [dbo].B; 
SELECT @total_Blank=Count(*) FROM [dbo].C WHERE ColumnA = ''"; 
SELECT @total_Source AS Total_Source, @total_Destination AS Total_Destination, @total_Blank AS Total_Blank

来源

2017-09-22 19:21:12

也@ @ Eliasib13说，你覆盖你的CommandText。我甚至没有注意到这一点。 –

如何在SSIS中创建多个命令文本c＃

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