Question

是否可以从.NET生成SQL Server数据库的数据库创建脚本？

我正在使用C＃，我想为我的应用程序创建一些安装程序项目我可以在其上选择现有数据库，生成创建脚本并在另一个SQL服务器实例上运行它们。

Answer 1

是的，有可能。使用SMO很容易做到这一点，请参阅Transfer类进行脚本操作，Database类进行数据库操作（创建，删除等）。用法如下：

    private StringCollection GetTransferScript(Database database)
    {
        var transfer = new Transfer(database);

        transfer.CopyAllObjects = true;
        transfer.CopyAllSynonyms = true;
        transfer.CopyData = false;

        // additional options
        transfer.Options.WithDependencies = true;
        transfer.Options.DriAll = true;
        transfer.Options.Triggers = true;
        transfer.Options.Indexes = true;
        transfer.Options.SchemaQualifyForeignKeysReferences = true;
        transfer.Options.ExtendedProperties = true;
        transfer.Options.IncludeDatabaseRoleMemberships = true;
        transfer.Options.Permissions = true;
        transfer.PreserveDbo = true;

        // generates script
        return transfer.ScriptTransfer();
    }

Answer 2

如果你想用c＃代码动态创建数据库，那么这里是代码：

你也可以这样做：

String Connectionstring = CCMMUtility.CreateConnectionString(false, txt_DbDataSource.Text, "master", "sa", "happytimes", 1000);

        SqlConnection con = new SqlConnection();
        con.ConnectionString = Connectionstring;
        bool resultdbexistencx = CCMMUtility.CheckDatabaseExists(con, txt_DbName.Text);
        if (!resultdbexistencx)
        {
            // if not exists create it check the user name for sub-admin avialibe or not.

            if (txt_DbName.Text.Trim() == string.Empty) return;

            string strDbCreate;
            strDbCreate = "CREATE DATABASE " + txt_DbName.Text + " ON PRIMARY " +
            "(NAME = " + txt_DbName.Text + "_Data, " +
            "FILENAME = 'D:\\" + txt_DbName.Text + "Data.mdf', " +
            "SIZE = 4MB, MAXSIZE = 10GB, FILEGROWTH = 100%) " +
            "LOG ON (NAME = " + txt_DbName.Text + "_Log, " +
            "FILENAME = 'D:\\" + txt_DbName.Text + ".ldf', " +
            "SIZE = 4MB, " +
            "MAXSIZE = 10GB, " +
            "FILEGROWTH = 100%)";
            SqlConnection sqlconn = new SqlConnection(Connectionstring);
            SqlCommand cmd = new SqlCommand(strDbCreate, sqlconn);
            try
            {
                sqlconn.Open();
                sqlconn.ChangeDatabase("master");
                cmd.ExecuteNonQuery();
            }
           catch (Exception ex)
            {
                Int32 dbRollbackResult = RollBackTheWholetransaction(txt_DbName.Text.Trim(), Convert.ToInt32(HospitalResult));
                if (dbRollbackResult == 1)
                {
                    Response.Write(ex.Message);
                    lblMessage.DisplayMessage(StatusMessages.ErrorMessage, "There is some problem while generating the database or database name doesn't avialible.");
                }
             }

以下是“RollBackTheWholetransaction”方法的代码：

 private Int32 RollBackTheWholetransaction(String DbName, Int32 HospitalId)
{
    Int32 result = 0;
    try
    {
        String Connectionstring = CCMMUtility.CreateConnectionString(false, txt_DbDataSource.Text, "master", "sa", "happytimes", 1000);

        SqlConnection con = new SqlConnection();
        con.ConnectionString = Connectionstring;

        String sqlCommandText = "ALTER DATABASE [" + DbName + "] SET SINGLE_USER WITH ROLLBACK IMMEDIATE";
        String sqlCommandText1 = "DROP DATABASE [" + DbName + "]";
        if (con.State == ConnectionState.Closed)
        {
            con.Open();
            SqlConnection.ClearPool(con);
            con.ChangeDatabase("master");
            SqlCommand sqlCommand = new SqlCommand(sqlCommandText, con);
            sqlCommand.ExecuteNonQuery();
            SqlCommand sqlCommand1 = new SqlCommand(sqlCommandText1, con);
            sqlCommand1.ExecuteNonQuery();

            ClsHospitals objHospiitals = new ClsHospitals();
            String resultDbdelete = objHospiitals.DeleteHospital(HospitalId, Session["devSuperAdmin"].ToString());
            if (resultDbdelete == "1")
            {
                result = 1;
            }
            else
            {
                result = 2;
            }
        }
        else
        {
            SqlConnection.ClearPool(con);
            con.ChangeDatabase("master");
            SqlCommand sqlCommand = new SqlCommand(sqlCommandText, con);
            sqlCommand.ExecuteNonQuery();
            SqlCommand sqlCommand1 = new SqlCommand(sqlCommandText1, con);
            sqlCommand1.ExecuteNonQuery();
        }
        con.Close();
        con.Dispose();
        result = 1;
    }
    catch (Exception ex)
    {
        result = 0;
    }
    return result;
}

以下是检查数据库中db存在的代码：

 public static bool CheckDatabaseExists(SqlConnection tmpConn, string databaseName)
{
    string sqlCreateDBQuery;
    bool result = false;

    try
    {
        // tmpConn = new SqlConnection("server=(local)\\SQLEXPRESS;Trusted_Connection=yes");



        sqlCreateDBQuery = string.Format("SELECT database_id FROM sys.databases WHERE Name = '{0}'", databaseName);

        using (tmpConn)
        {
            using (SqlCommand sqlCmd = new SqlCommand(sqlCreateDBQuery, tmpConn))
            {
                if (tmpConn.State == System.Data.ConnectionState.Open)
                {
                    tmpConn.Close();
                    tmpConn.Dispose();
                }
                tmpConn.Open();
                tmpConn.ChangeDatabase("master");
                int databaseID = (int)sqlCmd.ExecuteScalar();
                tmpConn.Close();

                result = (databaseID > 0);
            }
        }
    }
    catch (Exception ex)
    {
        result = false;
    }

    return result;
}

它的工作代码，希望它也适合你....

Answer 3

您必须自己编写代码来创建自己的安装程序。有一些框架可以让它更容易。

与Windows Installer XML（WiX）
Windows安装程序
以及......

我建议你看看WiX，使用它很容易，你可以做很多事情。可以集成在Visual Studio中

生成数据库创建脚本

3 个答案: