.NET大批量插入数据到Oracle

时间:2023-03-08 22:37:32

跟一个第三方系统做接口,需要插入几百万条数据到Oracle数据库。

下载Oracle的Managed版本的ODP.NET组件,只需要一个Oracle.ManagedDataAccess.dll这个DLL就可以搞定了,使用数组参数的方式,可以毫秒级插入几百万条数据。
下载地址
http://www.oracle.com/technetwork/database/windows/downloads/index-090165.html
示例代码如下:

string[] codeValue = new string[shopList.Count];
string[] nameValue = new string[shopList.Count]; int j = ;
foreach (Shop shop in shopList)
{
codeValue[j] = shop.Code;
nameValue[j] = shop.CName; j++;
}
command = new OracleCommand(sql, connection); sql = string.Format("INSERT INTO SHOP_ALL VALUES(:Code,:CName)");
command.ArrayBindCount = shopList.Count; //批量插入记录的条数,一定要赋值
command.CommandText = sql; OracleParameter codePara = new OracleParameter("Code", OracleDbType.NVarchar2);
codePara.Direction = ParameterDirection.Input;
codePara.Value = codeValue;
command.Parameters.Add(codePara); OracleParameter nameParameter = new OracleParameter("CName", OracleDbType.NVarchar2);
nameParameter.Direction = ParameterDirection.Input;
nameParameter.Value = nameValue;
command.Parameters.Add(nameParameter); command.ExecuteNonQuery();