首先,你需要添加Oracle.DataAccess.dll
在Visual Studio中的参考。在大多数情况下,您可以在目录中找到此dll C:\ProgramData\Oracle11g\product\11.2.0\client_1\ODP.NET\bin\2.x\Oracle.DataAccess.dll
如果您只需要将记录从DataTable插入到Oracle表中,则可以调用以下函数。考虑你的DataTable名称是dt
。
string error = "";
int noOfInserts = DataTableToTable(dt,out error);
1.在不使用Oracle参数
函数的定义如下(特殊字符非安全)。在这里,我们只是将查询动态地作为sql语句传递给InsertWithQuery
函数。
public int DataTableToTable(DataTable dt,out string error)
{
error = "";
for (int i = 0; i < dt.Rows.Count; i++)
{
finalSql = "INSERT INTO TABLENAME SELECT ";
for (int j = 0; j < dt.Columns.Count; j++)
{
colValue += "'" + dt.Rows[i][j].ToString() + "',";
}
colValue = colValue.Remove(colValue.Length - 1, 1);
finalSql += colValue + " FROM DUAL";
InsertWithQuery(finalSql, out error);
if (error != "")
return error;
inserts++;
colValue = "";
}
}
InsertWithQuery
函数的代码如下所示。在这里,在连接字符串中你必须把你的数据库的细节,如主机,用户名,密码等
public int InsertWithQuery(string query, out string error)
{
error = "";
int rowsInserted = 0;
if (error == "")
{
OracleConnection con = new OracleConnection("Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=)))(CONNECT_DATA=(SERVER=DEDICATED)(SID=)));User Id=;Password=");
OracleTransaction trans = con.BeginTransaction();
try
{
error = "";
OracleCommand cmd = new OracleCommand();
cmd.Transaction = trans;
cmd.Connection = con;
cmd.CommandText = query;
rowsInserted = cmd.ExecuteNonQuery();
trans.Commit();
con.Dispose();
return rowsInserted;
}
catch (Exception ex)
{
trans.Rollback();
error = ex.Message;
rowsInserted = 0;
}
finally
{
con.Dispose();
}
}
return rowsInserted;
}
2.使用Oracle的参数(特殊字符安全)
这可以处理特殊字符,如单引号如列值中的方案。
public int DataTableToTable(DataTable dt,out string error)
{
error = "";
string finalSql = "";
List<string> colValue = new List<string>();
List<string> cols = new List<string>() {"COLUMN1","COLUMN2","COLUMN3"};
for (int i = 0; i < dt.Rows.Count; i++)
{
finalSql = "INSERT INTO TABLENAME(COLUMN1,COLUMN2,COLUMN3) VALUES(:COLUMN1,:COLUMN2,:COLUMN3) ";
for (int j = 0; j < dt.Columns.Count; j++)
{
colValue.Add(dt.Rows[i][j].ToString());
}
objDAL.InsertWithParams(finalSql,colValue,cols, out error);
if (error != "")
return error;
inserts++;
colValue.Clear();
}
}
而且InsertWithParams
下面
public string InsertWithParams(string sql, List<string> colValue, List<string> cols, out string error)
{
error = "";
try
{
OracleConnection con = new OracleConnection("Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=)))(CONNECT_DATA=(SERVER=DEDICATED)(SID=)));User Id=;Password=");
OracleCommand command = new OracleCommand(sql, con);
for (int i = 0; i < colValue.Count; i++)
{
command.Parameters.Add(new OracleParameter(cols[i], colValue[i]));
}
command.ExecuteNonQuery();
command.Connection.Close();
}
catch (Exception ex)
{
error = ex.Message;
}
return null;
}
你能提供“型问题”你看到了什么?它会帮助那些想要帮助你解决问题的人。 – Henrik