c gets the implementation code for all database table and column names in the target server

  • 2020-06-23 01:44:14
  • OfStack


      /// <summary>
        ///  Get all database names for the target server 
        /// </summary>
        /// <param name="serverName"></param>
        /// <param name="userName"></param>
        /// <param name="password"></param>
        public void getDataBaseNameList(string serverName, string userName, string password)
        {
            SQLDMO.Application sqlApplication = new SQLDMO.ApplicationClass();
            SQLDMO.SQLServer sqlServer = new SQLDMO.SQLServerClass();

            sqlServer.Connect(serverName, userName, password);          //  Connect to server 
            foreach (SQLDMO.Database databBase in sqlServer.Databases)
            {
                if (databBase.Name != null)
                {
                    this.DataBaseTreeView.Nodes.Add(databBase.Name);
                    getDataBaseTableList(serverName, userName, password, databBase.Name);
                }
            }
        }

        /// <summary>
        ///  Load the tables in the database 
        /// </summary>
        /// <param name="serverName"> The server name </param>
        /// <param name="userName"> The user name </param>
        /// <param name="password"> password </param>
        /// <param name="dataBaseName"> The database name </param>
        private void getDataBaseTableList(string serverName, string userName, string password, string dataBaseName)
        {
            SQLDMO.SQLServer Server = new SQLDMO.SQLServerClass();
            // Connect to the server  
            Server.Connect(serverName, userName, password);
            // Traverse all databases to get the specified database  
            for (int i = 0; i < Server.Databases.Count; i++)
            {
                // Determines whether the current database is the specified database  
                if (Server.Databases.Item(i + 1, "dbo").Name == dataBaseName)
                {
                    // Get the specified database  
                    SQLDMO._Database db = Server.Databases.Item(i + 1, "dbo");
                    // Gets all the tables in the specified database  
                    for (int j = 0; j < db.Tables.Count; j++)
                    {
                        this.DataBaseTreeView.Nodes[i].Nodes.Add(db.Tables.Item(j + 1, "dbo").Name);
                    }
                }
            }
        }

    /// <summary>
        ///  Gets the names of all the columns in the table 
        /// </summary>
        /// <param name="serverName"> The server name </param>
        /// <param name="userName"> The user name </param>
        /// <param name="password"> password </param>
        /// <param name="tableName"> The name of the table </param>
        /// <param name="dataBaseName"> The database name </param>
        /// <returns></returns>
        public string getRowListFromTable(string serverName, string userName, string password, string tableName, string dataBaseName)
        {
            string result = string.Empty;
            string connectionString = string.Empty;
            connectionString += "server=" + serverName;
            connectionString += ";Pwd=" + password;
            connectionString += ";UID=" + userName;
            connectionString += ";Database=" + dataBaseName;
            string commandString = string.Empty;
            commandString += "select   name   from   syscolumns   where   id=object_id('";
            commandString += tableName;
            commandString += "')";
            
            SqlConnection sqlConnection = new SqlConnection(connectionString);
            SqlCommand sqlCommand = new SqlCommand(commandString, sqlConnection);
            SqlDataAdapter dataAdapter = new SqlDataAdapter(commandString, sqlConnection);
            DataSet dataSet = new DataSet();
            dataAdapter.Fill(dataSet);
            DataTable dataTable = dataSet.Tables[0];
            // DataTable dataTable = sqlConnection.GetSchema("Tables");
            foreach (DataRow row in dataTable.Rows)
            {
                result += row[0].ToString() + "-";
            }
            if (result != null)
            {
                return result;  
            }
            else
            {
                return "0";
            }
        }


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