  ,    ,   (   project_roi),       Microsoft Excel  ,   ,    .        days_to_break__even. (    ,  , ,   .)
CREATE OR REPLACE PACKAGE project_roi AS
FUNCTION days_to_break_even (roi BLOB) return INTEGER/END;
    ,       ,   .          ,    :
SELECT	p.proj_name
,	roi.days_to_break_even(p.roi)
FROM	projects p
WHERE	roi.days_to_break_even(p.roi) < 360;
      (,  ,    -    ),         (, , ).                BFILE-   days_to_break_even.  ,   WHERE ,     ,     - .
   ,       ,         OracleS. LOB          ,    PL/SQL (  3GL)      ,      SQL-.

       OracleS  ,    ,      ,   OracleS      .     Oracle,   ,    Oracle     SQL   SQL     .     Oracle   ,     
94	OracleS