//==============================================
//功能介绍：使用DAC来导出数据库脚本
//注意事项：
//1.本程序涉及到的DLL有:
// --Microsoft.SqlServer.ConnectionInfo.dll
// --Microsoft.SqlServer.Management.Dac.dll
// --Microsoft.SqlServer.Management.Sdk.Sfc.dll
// --Microsoft.SqlServer.Management.SmoMetadataProvider.dll
//2.以上DLL可以在C:\Windows\assembly\GAC_MSIL下找到，
//如果找不到,可以使用SQLSERVER 2012安装包安装以下MSI:
// --SQLSysClrTypes.msi
// --SharedManagementObjects.msi
// --DACFramework.msi
//
//==============================================
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using Microsoft.SqlServer.Management.Common;
using Microsoft.SqlServer.Management.Dac;
using Microsoft.SqlServer.Management.Smo;
using System.IO;
class DACExtracter
{
private List <string>GetDatabaseNames(SqlConnection conn)
{
SqlCommand comm = newSqlCommand( "SELECT name FROM sys.databases where database_id>4",conn);
List<string >dbNames = new List<string >();
try
{
conn.Open();
SqlDataReader reader= comm.ExecuteReader();
while(reader.Read())
{
dbNames.Add(reader["name" ].ToString());
}
return dbNames;
}
catch
{
Console.WriteLine("connect dbfailed");
throw(new Exception("connect db failed"));
}
finally
{
if(conn!=null )
{
conn.Close();
conn.Dispose();
}
}
}
public voidExtractDAC(string connectionString, string extractFolderPath)
{
try
{
SqlConnectionsqlConnection = new SqlConnection(connectionString);
ServerConnectionconn = new ServerConnection(sqlConnection);
Server destServer =new Server(conn);
List<string >dbNames = GetDatabaseNames(sqlConnection);
string version ="1.0.0.1" ;
foreach (stringdbName in dbNames)
{
ExtractDAC(destServer, dbName, version, extractFolderPath);
}
}
catch(Exception )
{
Console.WriteLine("End with error" );
}
}
private voidExtractDAC(Server destServer,string databaseName,string version,stringextractFolderPath)
{
try
{
Console.WriteLine(destServer.Information.Version);
DacExtractionUnitdacUnit = new DacExtractionUnit(destServer, databaseName, databaseName, newVersion (version));
DirectoryInfo dir =new DirectoryInfo(extractFolderPath);
if (!dir.Exists)
{
dir.Create();
}
string dacFilePath =dir.FullName + @"\" + databaseName + ".dacpac" ;
if (!File.Exists(dacFilePath))
{
File.Delete(dacFilePath);
}
dacUnit.Extract(dacFilePath);
Console.WriteLine("extract "+databaseName+"successfully");
}
catch(IOException )
{
Console.WriteLine("please check extract folder");
Console.WriteLine("extract " + databaseName + "failed" );
}
catch (Exception )
{
Console.WriteLine("extract " + databaseName + "failed" );
}
}
}
static void Main(string[] args)
{
String connectionString= "Data Source=88.88.88.88,18991;Initial Catalog=master;IntegratedSecurity=False;User ID=sa;Password=sa;";
DACExtracterdacExtracter = new DACExtracter();
dacExtracter.ExtractDAC(connectionString, @"E:\DBScript" );
Console.WriteLine("press any key to close");
Console.ReadLine();
}