 
    
         ,           (3GL).       ,           . ,                    ,   3GL   .
     C++,     .     POSIX,                  ,      .   ,  ,    Oracle   ,         .
      ,                ,                 .   ,  .  ,   ?
 
OracleS    (REF),        .      , .. ,       . ,   emp  dept    :
CREATE TYPE dept_type AS OBJECT ( depno    NUMBER(2) , dname    VARCHAR(14) , loc     VARCHAR(13)
CREATE TABLE dept_t OF dept_type;
CREATE TABLE emp
( empno    NUMBER(4)
98	OraclcS