開始想直接在sql server 2008用存儲過程寫。用到了OpenRowSet、opendatasource兩個函數,然而啓用Ad Hoc DistributedQueries的方法後還是一直報錯,查了資料可能是因爲使用的是64位系統,最終也沒改好,以後再來研究,可以參考http://www.cnblogs.com/OpenCoder/archive/2010/03/18/1689321.html
由於時間緊迫,就換了個方法在vs2014上用c#做:
A 打開Access數據庫
private bool OpenDbAccess()
{
try
{
//捕獲數據庫打開異常
OleDbConnection _oleDbConn = new OleDbConnection(@"provider=microsoft.jet.oledb.4.0; Data Source=C:\Data.mdb");
_oleDbConn.Open();
return true;
}
catch (Exception)
{
return false;
}
}
B 打開sql server數據庫
SqlConnection conn = new SqlConnection();
conn.ConnectionString = "server=服務器地址;uid=sa;pwd=xxx;database=數據庫名";
conn.Open();
C 用SQL語句查詢Access表內容
OleDbDataAdapter _oleDbAda = new OleDbDataAdapter(SQL語句, Access表連接);
if (!string.IsNullOrEmpty(SQL語句) && !string.IsNullOrEmpty(Access表名))//要求表和sql語句不爲空
{
var dt = new DataSet();//聲明結果集對象
_oleDbAda.Fill(dt, tableName);
if (dt != null)
{
SqlBulkCopyData(dt);
}
_oleDbAda.Dispose();
_oleDbConn.Close();
return dt;
}
else
{
return null;
}
DataSet的Fill方法形象的解說 http://blog.sina.com.cn/s/blog_67737c1d01017ike.html
D 對Access表中數據進行修改
方法:克隆Access表結構,修改後存入新表中if (dt != null)
{
//將DataSet轉成DataTable
DataTable data = dt.Tables[0];
//克隆data表用於修改Access內容
DataTable dtResult = new DataTable();
dtResult = data.Clone();//克隆表結構
foreach (DataRow row in data.Rows)
{
DataRow rowNew = dtResult.NewRow();
rowNew["ID"] = row["ID"];
//修改Area記錄值,保留到省
if (rowNew["Area "] != null)
{
var areaInt = row["Area"].ToString().IndexOf(" ");
rowNew["Area "] = row["Area "].ToString().Substring(0, areaInt); //截取字符串空格前面的內容
}
else
{
rowNew["Area "] = row["Area "];
}
//修改Type記錄值,去掉“中國”
if (rowNew["Type"] != null)
{
rowNew["Type "] = row["Type "].ToString().Replace("中國", " ");
}
else
{
rowNew["Type "] = row["Type "];
}
dtResult.Rows.Add(rowNew);
Access轉SQL server 注意事項 http://www.jb51.net/article/6869.htm
E Access表中內容批量複製到Sqlserver 中
SqlTransaction sqlbulkTransaction = conn.BeginTransaction();
//插入數據的同時檢查約束,如果發生錯誤調用sqlbulkTransaction事務
SqlBulkCopy copy = new SqlBulkCopy(conn, SqlBulkCopyOptions.CheckConstraints, sqlbulkTransaction);
//直接導入大數據
for (var i = 0; i < 6; i++)//i爲Access中列的數量
{
copy.ColumnMappings.Add(dtResult.Columns[i].ColumnName, data.Columns[i].ColumnName);
}
try
{
copy.WriteToServer(dtResult);
//提交事務
sqlbulkTransaction.Commit();
}
catch (Exception e)
{
//回滾事務
sqlbulkTransaction.Rollback();
Console.WriteLine(e.ToString());
}
finally
{
copy.Close();
conn.Close();
}
參考:
C#操作連接Access數據庫
http://jingyan.baidu.com/article/ab0b563094fab9c15afa7d8c.html
關於批量導入數據類SqlBulkCopy 導入數據時增加額外的列
修改數據表DataTable某一列的類型和記錄值http://www.cnblogs.com/starxp/articles/1789607.html
批量複製操作(SqlBulkCopy)的出錯處理:事務提交、回滾
http://blog.csdn.net/westsource/article/details/6658109
http://www.cnblogs.com/zfanlong1314/archive/2013/02/05/2892998.html
http://www.cnblogs.com/scottckt/archive/2011/02/16/1955862.html
http://blog.csdn.net/okman1214/article/details/6938037