SqlBulkCopy 和 SQL 服务器触发器问题

Question

我的应用程序中有以下代码。我使用 SqlBulkCopy 将 Excel 数据上传到 SQL 服务器 table。现在，我在 table 上有一个触发器。我已经像这样更改了现有代码，但出现错误。

错误是

Argument 1: cannot convert from 'System.Data.SqlClient.SqlConnection' to 'string'

我将代码更改为

oSqlBulk = new SqlBulkCopy("cn", SqlBulkCopyOptions.FireTriggers);

然后我得到一个错误

Format of the initialization string does not conform to specification starting at index 0.

请检查我的代码：

public static string ExecuteBulkCopy(string connectionString, string TableName, string Paths)
{
    SqlBulkCopy oSqlBulk = null;
    string error = null;

    OleDbConnection myExcelConn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0; " +
                       "Data Source=" + Paths +
                       ";Extended Properties=Excel 12.0;");

    try
    {
        myExcelConn.Open();

        // GET DATA FROM EXCEL SHEET.
        OleDbCommand objOleDB = new OleDbCommand("SELECT *FROM [Sheet1$]", myExcelConn);

        // READ THE DATA EXTRACTED FROM THE EXCEL FILE.
        OleDbDataReader objBulkReader = null;
        objBulkReader = objOleDB.ExecuteReader();

        using (SqlConnection cn = new SqlConnection(connectionString))
        {
            // cn.Open();
            oSqlBulk = new SqlBulkCopy(cn,SqlBulkCopyOptions.FireTriggers);

            oSqlBulk.DestinationTableName = TableName; // TABLE NAME.
            oSqlBulk.WriteToServer(objBulkReader);
            // return 1;

            //call the overload that takes a connection in place of the connection string
            // return ExecuteNonQuery(cn, commandType, commandText, commandParameters);
        }
    }
    catch (Exception ex)
    {
        error = ex.Message;
    }
    finally
    {
        oSqlBulk.Close();
        oSqlBulk = null;
        myExcelConn.Close();
        myExcelConn = null;
    }

    return error;
}

Answer 1

如果检查 SqlBulkCopy 的有效构造函数： https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlbulkcopy.sqlbulkcopy(v=vs.110).aspx

您会注意到使用 SqlBulkCopyOptions 的重载不直接接受 SqlConnection。 只是 ConnectionString

因为 SqlBulkCopy 实现了 IDisposable

您应该完全替换 SqlConnection：

using (var oSqlBulk = new SqlBulkCopy(connectionString,SqlBulkCopyOptions.FireTriggers))
{
    oSqlBulk.DestinationTableName = TableName; 
    oSqlBulk.WriteToServer(objBulkReader);
}

Answer 2

我已经完成了以下 changes.It 作品

 using (SqlConnection cn = new SqlConnection(connectionString))
                {

                    cn.Open();
                    oSqlBulk = new SqlBulkCopy(connectionString,SqlBulkCopyOptions.FireTriggers);

SqlBulkCopy 和 SQL 服务器触发器问题

SqlBulkCopy and SQL Server trigger Issues

c#

sql-server

asp.net

sqlbulkcopy