ssg.nfo

kbmmw是另外一个用于Internet分布式数据库开发的控件

                          .-             .,-
                    .:+X@###$       .:/XM###%            -=;;;;, .
                 ,/XM######%=    ./X##M###M%=        -;X##M@#M##M$.
               =%##M$%H@%;     -X##@$%@@+;.        =X##H:..  ,$##MM-
             ,+M##H. =.      ,%###X..=.          .%##X-        ;###@-
             +####/          %####;             =M#M;          ,@#@;
             /M####;,        %M###M;.          /###;            ,.
              ;M####M:        /MM###M:        /###+
               .;@####$=       .;@####+=     =M##X
                  -$####H,        -X####X,   H#M#+             :/-
                    ,%M##M,         ,%###M. ,M###/          .%####,
                      /###H-          /###H ;##M#/        .$M####H
              .  -:+=$##H/-     .-;/=X##X;, .X###X,    ,:$M$$####:
             =+H##MHMMX:.   .:%@##M@@MX;     -H#M##@H@MMX:  +###%
           ,$####MH/=.     ,X##M##X/=          -+%XX%/=,   .H##@,
             ,=-..           ,==,                          ,@##=
                                                           =#M%.
                       :: Saints and Sinners Group ::      ,;.

                             - p r e s e n t s -

             kbmMW v1.07e Commercial for Delphi n BCB incl Source             

        http://www.components4programmers.com/products/kbmmw/index.htm        

 __________       .__                                .___        _____
 \______   \ ____ |  |   ____ _____    ______ ____   |   | _____/ ____\____
  |       _// __ \|  | _/ __ \\__  \  /  ___// __ \  |   |/    \   __\/  _ \
  |    |   \  ___/|  |_\  ___/ / __ \_\___ \\  ___/  |   |   |  \  | (  <_> )
  |____|_  /\___  >____/\___  >____  /____  >\___  > |___|___|  /__|  \____/
         \/     \/          \/     \/     \/     \/           \/

            cracked by... SSG Team         rls type.... Retail
            tested by.... SSG Team         date........ 10/13/2003
            packed by.... SSG Team         os.......... WinALL
            supplied by.. SSG Team         language.... English
            protection... None             disks....... 1 x 2.88Mb

     You may have heard about 2-tier and n-tier applications.               
                                                                            
     What are they exactly?                                                 
                                                                            
     2-tier - also called client/server - applications are applications     
                                                                            
     which consist oftwo separate applications, one server application      
                                                                            
     (typically a database server like Oracle, MSSQL or any other           
                                                                            
     standalone database) and a client application.                         
                                                                            
     n-tier applications consist of 3 or more active applications           
                                                                            
     which data must pass, from the backend server to the front             
                                                                            
     end client. Usually 3-tier models are used, where one tier             
                                                                            
     is the backend database engine, one is the front end client            
                                                                            
     and one is just in between them, also named the application            
                                                                            
     server or business logic node.                                         
                                                                            
     What is the purpose of having more than 2 tier?                        
                                                                            
     Well.. if you want to have many different client frontends,            
                                                                            
     like f.ex. one written in Delphi/BCB as a normal fat client,           
                                                                            
     one as a web server, one as a WAP server, one as a linkup server       
                                                                            
     to a mainframe etc. it would be unwise to copy all the business logic  
                                                                            
     (all the rules of your application) to each client application/server. 
                                                                            
     It would be a nightmare to support. Instead its better to              
                                                                            
     create a middle layer containing the business logic, and then          
                                                                            
     let the clients talk with this middle layer. Thus the clients can      
                                                                            
     relatively easily be changed for other types of clients, without need  
     for                                                                    
                                                                            
     remembering how was the business logic put together.                   
                                                                            
     Using n-tier models also gives other positive side effects:            
                                                                            
     - Load balancing. They are capable of serving many more clients        
                                                                            
     than a 2-tier solution, simply because the middle node (the            
     application                                                            
                                                                            
     server) can be copied to more than one machine, and thus divide the    
                                                                            
     load between more CPU's.                                               
     - Fault tolerance. If more application servers are running, the        
     clients can simply try the request on another appserver if the first   
     one didnt reply. kbmMW is about all that and much more. It will support
     different database backends directly without you having to write any   
     code. Thus if you need to perform a SQL query you will do it much      
     the same way you are used to in a normal 2-tier setup.                 
     The specialized client and server service classes will handle everything
     for you. Further kbmMW contains advanced connection pooling on both    
     client to server and server to database, caching of result sets on both
     client to server and server to database and much more.                 
     The database handling with its advanced caching and connectionpooling can
     aciually be used in 2-tier (Client/Server) setups aswell without using the
     remaining part of kbmMW giving you freedom in creating your application
     or web application the way you want to.                                
     The source is fully included in the package.                           
                                                                            


                     _______          __
                     \      \   _____/  |_  ____   ______
                     /   |   \ /  _ \   __\/ __ \ /  ___/
                    /    |    (  <_> )  | \  ___/ \___ \
                    \____|__  /\____/|__|  \___  >____  >
                            \/                 \/     \/
 
                               Unpack and install.                          
                                                                            

                                     ENJOY.

            ________                      __             __
           /  _____/______   ____   _____/  |_  ______ _/  |_  ____
          /   \  __\_  __ \_/ __ \_/ __ \   __\/  ___/ \   __\/  _ \
          \    \_\  \  | \/\  ___/\  ___/|  |  \___ \   |  | (  <_> )
           \______  /__|    \___  >\___  >__| /____  >  |__|  \____/
                  \/            \/     \/          \/

                        SSG's respects & hello's fly out:

                  SCOTCH - RPG2000 - SOD - DAMN - TMG - EMBRACE

       _________                __                 __
       \_   ___ \  ____   _____/  |______    _____/  |_   __ __  ______
       /    \  \/ /  _ \ /    \   __\__  \ _/ ___\   __\ |  |  \/  ___/
       \     \___(  <_> )   |  \  |  / __ \\  \___|  |   |  |  /\___ \
        \______  /\____/|___|  /__| (____  /\___  >__|   |____//____  >
               \/            \/          \/     \/                  \/

              [www] ...........[http://www.forget.about.it.org]
              [e-mail]...........[removed for security reasons]
              [irc] .............[removed for security reasons]

 [nfo layout by bac/Offliner                               filled by SSG Team]
 [logo by Offliner                                  last update on 07/28/2002]