codepainter revolution trainer course exercise sheet 1 solution
TRANSCRIPT
CODEPAINTER REVOLUTIONTrainer Course
Exercise Sheet 1 Solution
Application GraphBooks Members
Lend Return
TABLES (1)Books:
BookCode C(8) Prim. KeyBookTitle C(30) Sec. KeyBookSubTitle C(30)BookEditor C(30)BookPubDate D BookPosition C(30)BookCanLend CBookCopies N(5)BookAvalCopies N(5)
TABLES (2)
Members:MembCode C(8) Prim.
KeyMembName C(30) Sec.
KeyMembAddress C(50) MembPhone C(20)
TABLES (3)
Lend:LenMembCode C(8) Prim.
KeyLenDate D Prim. KeyLenBookCode C(8) Rep. Prim.
Key LenFlagReturned C Rep.
TABLES (4)
Return:RetMembCode C(8) Prim.
KeyRetDate D Prim.
KeyRetBookCode C(8) Rep. Prim.
Key RetLenDate D Rep.
LINKS
BookCode (R) LenBookCode BookCode (R) RetBookCode MembCode (R) LenMembCode MembCode (R) RetMembCode LenBookCode (R) RetBookCode LenMembCode (R) RetMembCode LenDate (R) RetLenDate LenFlagReturned (R) <-- “Y” (=)