.
"" , 500 , BO. "" , , 5NF ( 5NF) Rdb, ", " ". , . BO 10 . ( 5NF Rdb; 5 , , -) .
, , , , dbs, . , , , , db. , BO Universe () Rdb.
, Rdb 120% Rdb, BO Crystal Reports . , , " " . , , , "" Rdb, .
, BO, , XI ( ). , , .
, BO Query GUI ( pre-XI) Rdb , , , . . " " . . , . (, Supertype-Subtype) .
, .
-, Crystal , ISO/IEC/ANSI. , , . ( ), , ; , , .
, , ; , , .. ..; ( ) () () , . , "", , . , .
, , , " " , , , .
, , , () , () , . , , , , . ( , , ) , ; Rdb, .
, , IDEF1X Notation.
, . .
1) a 2010 , 25- [ 35 -use relataional technology], , (wiki - ):
, , .
2) , , . "Relational Database Engine" .
, ( , 100% ), , BO Universe ( ).
DRI ( FK), " " ( ) , ( ) -.
FK.
, , ( ), - . BO - ; Crystal Reports . - .
. , , , , , , , 3 , , .
" "
, "" " ", , . ( " RDBMS, , BO, , , , , ".) , , , - SO, , .
BO ODBC JOIN ( ) , FK, ?
(ODBC , .)
, re FKs , . - , .
BO BO, " ". FK , ; , .