ASP.NET中备份和恢复数据库
2006-06-07 16:51
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1.备份和恢复SQL数据库
<script language="C#" runat="server">
// 注意本节的数据库连接字符串
string ConnStr = System.Configuration.ConfigurationSettings.AppSettings["ConnectionSqlServer1"];
void Page_Load(object sender, System.EventArgs e)
{
if(!IsPostBack)
{
// 创建连接及执行数据库操作
string db_query = "sp_helpdb";
SqlCommand myCommand = new SqlCommand(db_query, new SqlConnection(ConnStr));
myCommand.Connection.Open();
SqlDataReader dr = myCommand.ExecuteReader();
// 将数据库列表绑定到下拉列表控件(DropDownList)
dbDropDownList.DataSource = dr;
dbDropDownList.DataTextField = "name";
dbDropDownList.DataBind();
//关闭DataReader对象和数据库连接
dr.Close();
myCommand.Connection.Close();
}
}
void dbDropDownList_SelectedIndexChanged(object sender, System.EventArgs e)
{
txtPath.Text = @"C:/BACKUP/" + dbDropDownList.SelectedValue + ".bak";
}
void btnBackup_Click(object sender, System.EventArgs e)
{
string path = txtPath.Text;
string dbname = dbDropDownList.SelectedValue;
string backupSql = "use master;";
backupSql += "backup database @dbname to disk = @path;";
SqlCommand myCommand = new SqlCommand(backupSql, new SqlConnection(ConnStr));
myCommand.Parameters.Add("@dbname", SqlDbType.Char);
myCommand.Parameters["@dbname"].Value = dbname;
myCommand.Parameters.Add("@path", SqlDbType.Char);
myCommand.Parameters["@path"].Value = path;
try
{
myCommand.Connection.Open();
myCommand.ExecuteNonQuery();
lblMsg.Text = "备份成功";
}
catch(Exception ex)
{
lblMsg.Text = "备份失败<br>" + ex.ToString();
}
finally
{
myCommand.Connection.Close();
}
}
void btnRestore_Click(object sender, System.EventArgs e)
{
string path = pathTextBox.Text;
string dbname = dbDropDownList.SelectedValue;
string restoreSql = "use master;";
restoreSql += "restore database @dbname from disk = @path;";
SqlCommand myCommand = new SqlCommand(restoreSql, new SqlConnection(ConnStr));
myCommand.Parameters.Add("@dbname", SqlDbType.Char);
myCommand.Parameters["@dbname"].Value = dbname;
myCommand.Parameters.Add("@path", SqlDbType.Char);
myCommand.Parameters["@path"].Value = path;
try
{
myCommand.Connection.Open();
myCommand.ExecuteNonQuery();
lblMsg.Text = "恢复成功";
}
catch(Exception ex)
{
lblMsg.Text = "恢复失败<br>" + ex.ToString();
}
finally
{
myCommand.Connection.Close();
}
}
</script>
2.添加一个dropdownlist控件,两个Button按钮,一个TextBox文本框
<script language="C#" runat="server">
// 注意本节的数据库连接字符串
string ConnStr = System.Configuration.ConfigurationSettings.AppSettings["ConnectionSqlServer1"];
void Page_Load(object sender, System.EventArgs e)
{
if(!IsPostBack)
{
// 创建连接及执行数据库操作
string db_query = "sp_helpdb";
SqlCommand myCommand = new SqlCommand(db_query, new SqlConnection(ConnStr));
myCommand.Connection.Open();
SqlDataReader dr = myCommand.ExecuteReader();
// 将数据库列表绑定到下拉列表控件(DropDownList)
dbDropDownList.DataSource = dr;
dbDropDownList.DataTextField = "name";
dbDropDownList.DataBind();
//关闭DataReader对象和数据库连接
dr.Close();
myCommand.Connection.Close();
}
}
void dbDropDownList_SelectedIndexChanged(object sender, System.EventArgs e)
{
txtPath.Text = @"C:/BACKUP/" + dbDropDownList.SelectedValue + ".bak";
}
void btnBackup_Click(object sender, System.EventArgs e)
{
string path = txtPath.Text;
string dbname = dbDropDownList.SelectedValue;
string backupSql = "use master;";
backupSql += "backup database @dbname to disk = @path;";
SqlCommand myCommand = new SqlCommand(backupSql, new SqlConnection(ConnStr));
myCommand.Parameters.Add("@dbname", SqlDbType.Char);
myCommand.Parameters["@dbname"].Value = dbname;
myCommand.Parameters.Add("@path", SqlDbType.Char);
myCommand.Parameters["@path"].Value = path;
try
{
myCommand.Connection.Open();
myCommand.ExecuteNonQuery();
lblMsg.Text = "备份成功";
}
catch(Exception ex)
{
lblMsg.Text = "备份失败<br>" + ex.ToString();
}
finally
{
myCommand.Connection.Close();
}
}
void btnRestore_Click(object sender, System.EventArgs e)
{
string path = pathTextBox.Text;
string dbname = dbDropDownList.SelectedValue;
string restoreSql = "use master;";
restoreSql += "restore database @dbname from disk = @path;";
SqlCommand myCommand = new SqlCommand(restoreSql, new SqlConnection(ConnStr));
myCommand.Parameters.Add("@dbname", SqlDbType.Char);
myCommand.Parameters["@dbname"].Value = dbname;
myCommand.Parameters.Add("@path", SqlDbType.Char);
myCommand.Parameters["@path"].Value = path;
try
{
myCommand.Connection.Open();
myCommand.ExecuteNonQuery();
lblMsg.Text = "恢复成功";
}
catch(Exception ex)
{
lblMsg.Text = "恢复失败<br>" + ex.ToString();
}
finally
{
myCommand.Connection.Close();
}
}
</script>
2.添加一个dropdownlist控件,两个Button按钮,一个TextBox文本框
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