Question

我正在使用SSIS，正在导入多个（30）txt文件。我使用txt文件的文件名动态创建表，并根据txt文件的第一行创建列-所有这些工作。当其中一个字段中有一个撇号'时，我的代码停止工作。

使用|分隔文件。

我的代码：

SqlConnection myADONETConnection = new SqlConnection();
        myADONETConnection = (SqlConnection)(Dts.Connections["xxxxxxxxxxxxxx"].AcquireConnection(Dts.Transaction) as SqlConnection);


        string line1 = "";
        //Reading file names one by one
        string SourceDirectory = @"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
          string[] fileEntries = Directory.GetFiles(SourceDirectory);
        foreach (string fileName in fileEntries)
        {
            // do something with fileName
            string columname = "";

            //Reading first line of each file and assign to variable
            System.IO.StreamReader file2 =
            new System.IO.StreamReader(fileName);

            string filenameonly = ((((fileName.Replace(SourceDirectory, "")).Replace(".txt", "")).Replace("\\", "")).Replace("-", "_"));
            line1 = (" IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo]." + filenameonly + "') AND type in (N'U'))DROP TABLE [dbo]." + filenameonly + " Create Table dbo." + filenameonly + "([" + file2.ReadLine().Replace("|", "] NVARCHAR(500),[") + "] NVARCHAR(500))").Replace(".txt", "");

            file2.Close();

            SqlCommand myCommand = new SqlCommand(line1, myADONETConnection);
            myCommand.ExecuteNonQuery();      

            MessageBox.Show("TABLE IS CREATED");

            //Writing Data of File Into Table
            int counter = 0;
            string line;

            System.IO.StreamReader SourceFile =
            new System.IO.StreamReader(fileName);
            while ((line = SourceFile.ReadLine()) != null)
            {

                if (counter == 0)
                {
                    columname = line.ToString();
                    columname = "[" + columname.Replace("|", "],[") + "]";
                }

                else
                {
                    string query = "Insert into dbo." + filenameonly + "(" + columname + ") VALUES('" + line.Replace("|", "','") + "')";
                    SqlCommand myCommand1 = new SqlCommand(query, myADONETConnection);
                    myCommand1.ExecuteNonQuery();
                }

                counter++;
            }

            SourceFile.Close();

违规行是：

string query = "Insert into dbo." + filenameonly + "(" + columname + ") VALUES('" + line.Replace("|", "','") + "')";

我尝试对以下内容进行修改，以将单引号替换为无效：

string query = "Insert into dbo." + filenameonly + "(" + columname + ") VALUES('" + line.Replace("|", "','") + line.Replace("'''", "") + "')";

string query = "Insert into dbo." + filenameonly + "(" + columname + ") VALUES('" + line.Replace("'", "") + "')";

也无法嵌套替换：

string query = "Insert into dbo." + filenameonly + "(" + columname + ") VALUES('" + line.Replace(line.Replace("'''", ""),"|" ) + "')";

以下内容不会导入任何内容：

string query = "Insert into dbo." + filenameonly + "(" + columname + ") VALUES('" + line.Replace("|", "','").Replace("'", "") + "')";

更改为以下内容将全部导入，但随后在撇号行处进行故障转移：

string query = "Insert into dbo." + filenameonly + "(" + columname + ") VALUES('" + line.Replace("|", "','").Replace("'''", "") + "')";

我想念什么？

Answer 1

与其像第一次尝试那样连接两个REPLACE（）函数，不如将它们嵌套。

Replace(
  Replace({arguments to remove apostrophe character}), 
  {arguments to remove pipe character}
)

如果要保留string.Replace()的C＃使用率，则应嵌套如下：

line.Replace({arguments to replace apostrophe).Replace({arguments to replace pipe})

或者您可以在两个单独的语句中这样做：

line = line.Replace({arguments to replace apostrophe});
line = line.Replace({arguments to replace pipe});

SSIS导入多个文件并创建表

1 个答案: