C# 如何使用具有相同主键的本地数据库表更新远程表？
我想从本地数据库表更新数据库的远程表。 但是，当我更新主控时，我遇到了主键不匹配的问题。C# 如何使用具有相同主键的本地数据库表更新远程表？,c#,ado.net,C#,Ado.net,我想从本地数据库表更新数据库的远程表。 但是，当我更新主控时，我遇到了主键不匹配的问题。 所以，是否有一种机制可以在本地使用相同的主键更新远程数据库表。如果在本地删除记录，则在远程删除时主键不匹配。 虽然我有两种类型的表，没有主键，也有主键 public bool PublishDressingDetails() { int isUpdated = -1; try { Da
所以，是否有一种机制可以在本地使用相同的主键更新远程数据库表。如果在本地删除记录，则在远程删除时主键不匹配。 虽然我有两种类型的表，没有主键，也有主键
public bool PublishDressingDetails()
{
int isUpdated = -1;
try
{
DataTable DressingDetailsLocalDT = cDressing.GetAllDressingDetailsDTForExport();
if (DressingDetailsLocalDT.Rows.Count > 0)
{
//SqlDataAdapter DA = new SqlDataAdapter("select * from Toppings where ClientID=2", connWeb);
SqlDataAdapter DA = new SqlDataAdapter("select * from DressingDetails", connWeb);
DA.InsertCommand.Transaction = transaction;
DA.UpdateCommand.Transaction = transaction;
DA.DeleteCommand.Transaction = transaction;
SqlCommandBuilder SCB = new SqlCommandBuilder(DA);
DataSet DS = new DataSet();
DA.Fill(DS, "DressingDetails");
//DS.Tables[0].PrimaryKey = new DataColumn[] { DS.Tables[0].Columns["ClientID"], DS.Tables[0].Columns["ToppingID"] };
DS.Tables[0].PrimaryKey = new DataColumn[] { DS.Tables[0].Columns["DressingID"] };
object[] searchVal = new object[1];
//searchVal[0] = "2";
//DataRow drSrc;
foreach (DataRow drLocal in DressingDetailsLocalDT.Rows)
{
searchVal[0] = drLocal["DressingID"].ToString();
DataRow drSrc = DS.Tables[0].Rows.Find(searchVal);
if (drSrc == null)
{
drSrc = DS.Tables[0].NewRow();
//drSrc["ClientID"] = "2";
drSrc["DressingID"] = drLocal["DressingID"].ToString();
if (drLocal["Description"] != DBNull.Value)
{
drSrc["Description"] = drLocal["Description"].ToString();
}
else drSrc["Description"] = DBNull.Value;
if (drLocal["Position"] != DBNull.Value)
{
drSrc["Position"] = drLocal["Position"].ToString();
}
else drSrc["Position"] = DBNull.Value;
if (drLocal["IsDeleted"] != DBNull.Value)
{
drSrc["IsDeleted"] = drLocal["IsDeleted"].ToString();
}
else drSrc["IsDeleted"] = DBNull.Value;
if (drLocal["icon"] != DBNull.Value)
drSrc["icon"] = drLocal["icon"];
else
drSrc["icon"] = DBNull.Value;
DS.Tables[0].Rows.Add(drSrc);
}
else
{
//drSrc["ClientID"] = "2";
drSrc["DressingID"] = drLocal["DressingID"].ToString();
if (drLocal["Description"] != DBNull.Value)
{
drSrc["Description"] = drLocal["Description"].ToString();
}
else drSrc["Description"] = DBNull.Value;
if (drLocal["Position"] != DBNull.Value)
{
drSrc["Position"] = drLocal["Position"].ToString();
}
else drSrc["Position"] = DBNull.Value;
if (drLocal["IsDeleted"] != DBNull.Value)
{
drSrc["IsDeleted"] = drLocal["IsDeleted"].ToString();
}
else drSrc["IsDeleted"] = DBNull.Value;
if (drLocal["icon"] != DBNull.Value)
drSrc["icon"] = drLocal["icon"];
else
drSrc["icon"] = DBNull.Value;
}
}
isUpdated = DA.Update(DS, "DressingDetails");
}
}
catch (Exception ex)
{
throw ex;
}
return (isUpdated != -1) ? true : false;
}
public bool PublishMealDealDetail()
{
bool isUpdated = true;
try
{
DataTable dtLocal = libEPOS.cMealDeal.GetAllMealDealDetailsDTForExport();
if (dtLocal.Rows.Count > 0)
{
//truncate table on web
string sqlTrunc = "TRUNCATE TABLE MealDealDetail";
SqlCommand cmd = new SqlCommand(sqlTrunc, connWeb, transaction);
// connWeb.Open();
cmd.ExecuteNonQuery();
SqlBulkCopy bulkcopy = new SqlBulkCopy(connWeb);
bulkcopy.DestinationTableName = "MealDealDetail";
try
{
bulkcopy.WriteToServer(dtLocal);
}
catch (Exception e)
{
transaction.Rollback();
isUpdated = false;
Console.WriteLine(e.Message);
}
}
}
catch (Exception ex)
{
transaction.Rollback();
isUpdated = false;
throw ex;
}
return isUpdated;
}
public bool PublishDressingDetails()
{
int isUpdated = -1;
try
{
DataTable DressingDetailsLocalDT = cDressing.GetAllDressingDetailsDTForExport();
if (DressingDetailsLocalDT.Rows.Count > 0)
{
//SqlDataAdapter DA = new SqlDataAdapter("select * from Toppings where ClientID=2", connWeb);
SqlDataAdapter DA = new SqlDataAdapter("select * from DressingDetails", connWeb);
DA.InsertCommand.Transaction = transaction;
DA.UpdateCommand.Transaction = transaction;
DA.DeleteCommand.Transaction = transaction;
SqlCommandBuilder SCB = new SqlCommandBuilder(DA);
DataSet DS = new DataSet();
DA.Fill(DS, "DressingDetails");
//DS.Tables[0].PrimaryKey = new DataColumn[] { DS.Tables[0].Columns["ClientID"], DS.Tables[0].Columns["ToppingID"] };
DS.Tables[0].PrimaryKey = new DataColumn[] { DS.Tables[0].Columns["DressingID"] };
object[] searchVal = new object[1];
//searchVal[0] = "2";
//DataRow drSrc;
foreach (DataRow drLocal in DressingDetailsLocalDT.Rows)
{
searchVal[0] = drLocal["DressingID"].ToString();
DataRow drSrc = DS.Tables[0].Rows.Find(searchVal);
if (drSrc == null)
{
drSrc = DS.Tables[0].NewRow();
//drSrc["ClientID"] = "2";
drSrc["DressingID"] = drLocal["DressingID"].ToString();
if (drLocal["Description"] != DBNull.Value)
{
drSrc["Description"] = drLocal["Description"].ToString();
}
else drSrc["Description"] = DBNull.Value;
if (drLocal["Position"] != DBNull.Value)
{
drSrc["Position"] = drLocal["Position"].ToString();
}
else drSrc["Position"] = DBNull.Value;
if (drLocal["IsDeleted"] != DBNull.Value)
{
drSrc["IsDeleted"] = drLocal["IsDeleted"].ToString();
}
else drSrc["IsDeleted"] = DBNull.Value;
if (drLocal["icon"] != DBNull.Value)
drSrc["icon"] = drLocal["icon"];
else
drSrc["icon"] = DBNull.Value;
DS.Tables[0].Rows.Add(drSrc);
}
else
{
//drSrc["ClientID"] = "2";
drSrc["DressingID"] = drLocal["DressingID"].ToString();
if (drLocal["Description"] != DBNull.Value)
{
drSrc["Description"] = drLocal["Description"].ToString();
}
else drSrc["Description"] = DBNull.Value;
if (drLocal["Position"] != DBNull.Value)
{
drSrc["Position"] = drLocal["Position"].ToString();
}
else drSrc["Position"] = DBNull.Value;
if (drLocal["IsDeleted"] != DBNull.Value)
{
drSrc["IsDeleted"] = drLocal["IsDeleted"].ToString();
}
else drSrc["IsDeleted"] = DBNull.Value;
if (drLocal["icon"] != DBNull.Value)
drSrc["icon"] = drLocal["icon"];
else
drSrc["icon"] = DBNull.Value;
}
}
isUpdated = DA.Update(DS, "DressingDetails");
}
}
catch (Exception ex)
{
throw ex;
}
return (isUpdated != -1) ? true : false;
}
public bool PublishMealDealDetail()
{
bool isUpdated = true;
try
{
DataTable dtLocal = libEPOS.cMealDeal.GetAllMealDealDetailsDTForExport();
if (dtLocal.Rows.Count > 0)
{
//truncate table on web
string sqlTrunc = "TRUNCATE TABLE MealDealDetail";
SqlCommand cmd = new SqlCommand(sqlTrunc, connWeb, transaction);
// connWeb.Open();
cmd.ExecuteNonQuery();
SqlBulkCopy bulkcopy = new SqlBulkCopy(connWeb);
bulkcopy.DestinationTableName = "MealDealDetail";
try
{
bulkcopy.WriteToServer(dtLocal);
}
catch (Exception e)
{
transaction.Rollback();
isUpdated = false;
Console.WriteLine(e.Message);
}
}
}
catch (Exception ex)
{
transaction.Rollback();
isUpdated = false;
throw ex;
}
return isUpdated;
}
public bool PublishDressingDetails()
{
int isUpdated = -1;
try
{
DataTable DressingDetailsLocalDT = cDressing.GetAllDressingDetailsDTForExport();
if (DressingDetailsLocalDT.Rows.Count > 0)
{
//SqlDataAdapter DA = new SqlDataAdapter("select * from Toppings where ClientID=2", connWeb);
SqlDataAdapter DA = new SqlDataAdapter("select * from DressingDetails", connWeb);
DA.InsertCommand.Transaction = transaction;
DA.UpdateCommand.Transaction = transaction;
DA.DeleteCommand.Transaction = transaction;
SqlCommandBuilder SCB = new SqlCommandBuilder(DA);
DataSet DS = new DataSet();
DA.Fill(DS, "DressingDetails");
//DS.Tables[0].PrimaryKey = new DataColumn[] { DS.Tables[0].Columns["ClientID"], DS.Tables[0].Columns["ToppingID"] };
DS.Tables[0].PrimaryKey = new DataColumn[] { DS.Tables[0].Columns["DressingID"] };
object[] searchVal = new object[1];
//searchVal[0] = "2";
//DataRow drSrc;
foreach (DataRow drLocal in DressingDetailsLocalDT.Rows)
{
searchVal[0] = drLocal["DressingID"].ToString();
DataRow drSrc = DS.Tables[0].Rows.Find(searchVal);
if (drSrc == null)
{
drSrc = DS.Tables[0].NewRow();
//drSrc["ClientID"] = "2";
drSrc["DressingID"] = drLocal["DressingID"].ToString();
if (drLocal["Description"] != DBNull.Value)
{
drSrc["Description"] = drLocal["Description"].ToString();
}
else drSrc["Description"] = DBNull.Value;
if (drLocal["Position"] != DBNull.Value)
{
drSrc["Position"] = drLocal["Position"].ToString();
}
else drSrc["Position"] = DBNull.Value;
if (drLocal["IsDeleted"] != DBNull.Value)
{
drSrc["IsDeleted"] = drLocal["IsDeleted"].ToString();
}
else drSrc["IsDeleted"] = DBNull.Value;
if (drLocal["icon"] != DBNull.Value)
drSrc["icon"] = drLocal["icon"];
else
drSrc["icon"] = DBNull.Value;
DS.Tables[0].Rows.Add(drSrc);
}
else
{
//drSrc["ClientID"] = "2";
drSrc["DressingID"] = drLocal["DressingID"].ToString();
if (drLocal["Description"] != DBNull.Value)
{
drSrc["Description"] = drLocal["Description"].ToString();
}
else drSrc["Description"] = DBNull.Value;
if (drLocal["Position"] != DBNull.Value)
{
drSrc["Position"] = drLocal["Position"].ToString();
}
else drSrc["Position"] = DBNull.Value;
if (drLocal["IsDeleted"] != DBNull.Value)
{
drSrc["IsDeleted"] = drLocal["IsDeleted"].ToString();
}
else drSrc["IsDeleted"] = DBNull.Value;
if (drLocal["icon"] != DBNull.Value)
drSrc["icon"] = drLocal["icon"];
else
drSrc["icon"] = DBNull.Value;
}
}
isUpdated = DA.Update(DS, "DressingDetails");
}
}
catch (Exception ex)
{
throw ex;
}
return (isUpdated != -1) ? true : false;
}
public bool PublishMealDealDetail()
{
bool isUpdated = true;
try
{
DataTable dtLocal = libEPOS.cMealDeal.GetAllMealDealDetailsDTForExport();
if (dtLocal.Rows.Count > 0)
{
//truncate table on web
string sqlTrunc = "TRUNCATE TABLE MealDealDetail";
SqlCommand cmd = new SqlCommand(sqlTrunc, connWeb, transaction);
// connWeb.Open();
cmd.ExecuteNonQuery();
SqlBulkCopy bulkcopy = new SqlBulkCopy(connWeb);
bulkcopy.DestinationTableName = "MealDealDetail";
try
{
bulkcopy.WriteToServer(dtLocal);
}
catch (Exception e)
{
transaction.Rollback();
isUpdated = false;
Console.WriteLine(e.Message);
}
}
}
catch (Exception ex)
{
transaction.Rollback();
isUpdated = false;
throw ex;
}
return isUpdated;
}
您可以使用
System.Data.SqlClient.SqlBulkCopyOptions.KeepIdentity“是否有一种机制可以在本地使用相同的主键更新远程数据库表”查看数据库复制，无需代码。