        ____________589

   .    ,    -
   ,     . ,   -
  Table,        .  -
  Extraction...  Metadata.     
 SQL,          
.            
 ib.gdb,          -
,      .

10.3.4   Views

 (views)     ,   
  ,  ,    .
, ,      , 
   Pers.       ,
   ,     -
.         , 
         .  , -
  , ,   .    -
          
,  -   (- )  -
    ,         
     .  
  ,     ,    .  
   -    (   
, - ,  -  , ,  -
),        ,    
,    .

    :

CREATE VIEW < > AS SELECT < > FROM <>

WHERE <>

       :

CREATE VIEW DEP_1 AS SELECT Fam, Nam, Par, Year_b, Sex FROM Pers

WHERE Dep = ' 

     :

DROP VIEW < >

,  ,     , -
 :

DROP VIEW Dep_l

       .    -
   FROM       
  ,     .     ,   
      ,    -
,     .        
      .      
   .