SQLDMOHelper

在网上传闻SQLDMO是个好东西，当时没有注意这个传闻是什么时候了，后来才在微软的官网上看见，从SQL Server2008开始就不用SQLDMO了，取而代之的是SMO。无奈了，还写了个Helper。感觉DMO用起来比用SQLCMD少输些命令，而且如果用ADO.NET调用存储过程的话，好像还比DMO方便。

这个SQLDMO绝不是像别的dll那样直接添加引用的，它是个COM组件，要注册了才能使用，这说明了，凡是要跑带这个组件的程序，都要先注册一下组件。

在网上下一个SQLDOM的压缩包，解压后

第一步：首先将msvcr71.dll, SQLDMO.DLL, Resources\2052\sqldmo.rll,Resources\1033\sqldmo.rll 拷贝到C:\Program Files\Microsoft SQL Server\80\Tools\Binn目录。
下载SQLDMO文件
第二步：打开开始，在运行中输入 regsvr32 "C:\Program Files\Microsoft SQL Server\80\Tools\Binn\sqldmo.dll" 注册sqldmo.dll。

好了，是时候粘贴代码了

     class SQLDMOHelper
     {

         //增加
         public static void CreateDB(string dbName, string hostName, string instanceName, string username, string password)
         {
             SQLServer server = null;
             Application app=null;
             try
             {
                 server = new SQLServer();
                 app = new ApplicationClass();
                 ConfigServer(server, hostName, instanceName, username, password);
                 string dbPath = server.Registry.SQLDataRoot + @"\DATA\" + dbName;

                 foreach (Database db in server.Databases)
                     if (db.Name == dbName) return;

                 Database database = new DatabaseClass();
                 DBFile file = new DBFileClass();
                 LogFile log = new LogFileClass();

                 database.Name = dbName;
                 file.Name = dbName + "file";
                 file.PhysicalName = dbPath + "_Data.mdf";
                 file.PrimaryFile = true;
                 file.FileGrowthType = ;
                 file.FileGrowth = ;
                 database.FileGroups.Item("primary").DBFiles.Add(file);
                 log.Name = dbName + "log";
                 log.PhysicalName = dbPath + "_Log.ldf";
                 database.TransactionLog.LogFiles.Add(log);
                 server.Databases.Add(database);

             }
             catch
             {
                 throw;
             }
             finally
             {
                 if (server != null)
                 {
                     server.DisConnect();
                     server.Close();
                 }
                 if (app != null)
                     app.Quit();
             }

         }

         public static void CreateDB(string dbName, string hostName, string instanceName)
         {
             CreateDB(dbName, hostName, instanceName, "", "");
         }

         //删除

         public static void DeleteDB(string dbName, string hostName, string instanceName, string username, string password)
         {
             SQLServer server=null;
             try
             {
                 server = new SQLServerClass();
                 ConfigServer(server, hostName, instanceName, username, password);
                 Database database = server.Databases.Item(dbName, null) as Database;

                 QueryResults queryRestlts = server.EnumProcesses(-);
                 int iColPIDNum = -;
                 int iColDbName = -;
                 for (int i = ; i <= queryRestlts.Columns; i++)
                 {
                     string strName = queryRestlts.get_ColumnName(i);
                     if (strName.ToUpper().Trim() == "SPID")
                     {
                         iColPIDNum = i;
                     }
                     else if (strName.ToUpper().Trim() == "DBNAME")
                     {
                         iColDbName = i;
                     }
                     if (iColPIDNum != - && iColDbName != -)
                         break;
                 }

                 for (int i = ; i <= queryRestlts.Rows; i++)
                 {
                     int lPID = queryRestlts.GetColumnLong(i, iColPIDNum);
                     string strDBName = queryRestlts.GetColumnString(i, iColDbName);
                     if (strDBName.ToUpper() == dbName)
                         server.KillProcess(lPID);
                 }

                 database.Remove();
             }
             catch
             {
                 throw;
             }
             finally
             {
                 if (server != null)
                 {
                     server.DisConnect();
                     server.Close();
                 }
             }

         }

         public static void DeleteDB(string dbName, string hostName, string instanceName)
         {
             DeleteDB(dbName, hostName, instanceName, "", "");
         }

         //附加
         public static void AttachDB(string dbName,string dbFileName,string hostName,string instanceName,string username,string password)
         {
             SQLServer server = null;
             try
             {
                 server = new SQLServer();
                 ConfigServer(server, hostName, instanceName, username, password);
                 server.AttachDBWithSingleFile(dbName, dbFileName);
             }
             catch
             {
                 throw;
             }
             finally
             {
                 if (server != null)
                 {
                     server.DisConnect();
                     server.Close();
                 }
             }
         }

         public static void AttachDB(string dbName, string dbFileName, string hostName, string instanceName)
         {
             AttachDB(dbName, dbFileName, hostName, instanceName, "", "");
         }

         //分离
         public static void DetachDB(string dbName, string dbFileName, string hostName, string instanceName, string username, string password)
         {
             SQLServer server = null;
             try
             {
                 server = new SQLServer();
                 ConfigServer(server, hostName, instanceName, username, password);
                 server.DetachDB(dbName);
             }
             catch
             {
                 throw;
             }
             finally
             {
                 if (server != null)
                 {
                     server.DisConnect();
                     server.Close();
                 }
             }
         }

         public static void DetachDB(string dbName, string dbFileName, string hostName, string instanceName)
         {
             DetachDB(dbName, dbFileName, hostName, instanceName, "", "");
         }

         //脱机
         //联机

         /// <summary>
         /// 数据库全备份 失败则会抛异常
         /// </summary>
         public static void BackupDB(string fileName, string dbName, string hostName, string instanceName, string username, string password)
         {
             SQLServer server=null;
             Backup backup=null;
             try
             {
                 server = new SQLServer();
                 backup = new Backup(); ConfigServer(server, hostName, instanceName, username, password);
                 backup.Action = SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
                 backup.Database = dbName;
                 backup.BackupSetName = dbName;
                 backup.BackupSetDescription = "数据库备份";
                 backup.Files = fileName;
                 backup.Initialize = true;
                 backup.SQLBackup(server);
             }
             catch
             {
                 throw;
             }
             finally
             {
                 if (server != null)
                 {
                     server.DisConnect();
                     server.Close();
                 }
             }
         }

         public static void BackupDB(string fileName, string dbName, string hostName, string instanceName)
         {
             BackupDB(fileName, dbName, hostName, instanceName,"","");
         }

         /// <summary>
         /// 还原数据库 失败会抛异常
         /// </summary>
         public static void RestoreDB(string fileName, string dbName, string dbFileName, string hostName, string instanceName, string username, string password)
         {
             SQLServer server = null;
             Restore restore = null;
             try
             {
                 server = new SQLServerClass();
                 restore = new RestoreClass();
                 ConfigServer(server, hostName, instanceName, username, password);

                 QueryResults queryRestlts = server.EnumProcesses(-);
                 int iColPIDNum = -;
                 int iColDbName = -;
                 for (int i = ; i <= queryRestlts.Columns; i++)
                 {
                     string strName = queryRestlts.get_ColumnName(i);
                     if (strName.ToUpper().Trim() == "SPID")
                     {
                         iColPIDNum = i;
                     }
                     else if (strName.ToUpper().Trim() == "DBNAME")
                     {
                         iColDbName = i;
                     }
                     if (iColPIDNum != - && iColDbName != -)
                         break;
                 }

                 for (int i = ; i <= queryRestlts.Rows; i++)
                 {
                     int lPID = queryRestlts.GetColumnLong(i, iColPIDNum);
                     string strDBName = queryRestlts.GetColumnString(i, iColDbName);
                     if (strDBName.ToUpper() == dbName)
                         server.KillProcess(lPID);
                 }

                 restore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
                 restore.Database = dbName;
                 restore.Files = fileName;
                 restore.FileNumber = ;
                 restore.ReplaceDatabase = true;
                 restore.SQLRestore(server);
             }
             catch
             {
                 throw;
             }
             finally
             {
                 if (server != null)
                 {
                     server.DisConnect();
                     server.Close();
                 }
             }
         }

         public static void RestoreDB(string fileName, string dbName, string dbFileName, string hostName, string instanceName)
         {
             RestoreDB(fileName, dbName, dbFileName, hostName,instanceName,"","");
         }

         private static void ConfigServer(SQLServer server, string hostName, string instanceName, string userName = "", string password = "")
         {
             if (string.IsNullOrEmpty(userName) && string.IsNullOrEmpty(password))
                 server.LoginSecure = true;
             else
             {
                 server.Login = userName;
                 server.Password = password;
             }
             server.Connect(hostName + "\\" + instanceName);
         }
     }