:

           .
                                   1993



,           
            
( ),  ,      -
.          
, , ,        
  UNIX     -  -
  . ( ,    .)
---------------------------------------------------------------
     4   -  4  
,      2-3      -
    . 5  - ,  
.   4   ,       
  .
---------------------------------------------------------------
     .  -
 "",     -
  "".   ,   ,  
           ,
      .

 .. 29--92
 -    INFORMIX.

              .

 1.            INFORMI
.        
           
.             INFORMIX
.         SQL
.         
.         INFORMIX-4GL
.          
.         
 2.          INFORMIX 
.        INFORMIX
.          INFORMIX
.           INFORMIX
.       4GL-RDS       MAIN  MENU
        SQL           MAIN  MENU
 3.         INFORMI
.       4GL    
.       4GL   
.       4GL    
.       4GL    
.       4GL   
.       4GL   



    ,   ""


[ PARAM ]                ,   

[ param1 | param2 ]       

{ param1 | param2 }       

 ...                       

{param1|param2} ...         



    1 


1.       INFORMIX
2.  SQL
3. :   ,  
      INFORMIX:
         INFORMIX-SQL:
              , ,  
         INFORMIX-4GL RDS:
                zawod
               primer ( zawod)

""                        ""
---------------------------------------------------------------
    INFORMIX     ----
school0                         
   INFORMIX    
infext                          
    INFORMIX       
h4k                           
4GL-RDS              
h4m                            
4GL-Compiler         
h4cm                           
INFORMIX-SQL         
hsm                            
---------------------------------------------------------------


    2 


1.    SQL.    -
   .         ("") 
      ("")

""                       ""
---------------------------------------------------------------
  SQL                  4GL  
schoolsql                      h4gl
---------------------------------------------------------------


    3 


1.   4GL.      -
    ("")     ("")
2.   .    "Hello world"

""                       ""
---------------------------------------------------------------
  4GL                  4GL  
school4gl                      h4gl
---------------------------------------------------------------


    4 


1.  .
2.   4GL
3.  4GL
4.   .
      primer.  .
    .

""                       ""
---------------------------------------------------------------
              4GL    
schoolr                      h4r
            4GL    
schoolper                      h4per
                               4GL   
                               h4f
 primer        
rim*.4gl               
---------------------------------------------------------------


    5  .


1.   .
2.  INFORMIX
3.    INFORMIX   UNIX.
4.    stores. *demo.
---------------------------------------------------------------

Last-modified: Fri, 03 Nov 2000 14:03:21 GMT

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