Entity-relationship Diagram Exercises And Answers Pdf -
\documentclass[12pt,a4paper]article \usepackage[utf8]inputenc \usepackagegeometry \geometrymargin=1in \usepackagegraphicx \usepackagetikz \usetikzlibraryshapes,arrows,positioning,fit \usepackagefloat \usepackagehyperref \usepackageenumitem \usepackagetcolorbox
\vspace2cm \noindent\rule\textwidth0.5pt \textbfAnswer: \beginfigure[H] \centering \begintikzpicture \node[rectangle, draw] (vehicle) VEHICLE \\ \tiny VIN (PK) \\ make \\ model \\ year; \node[rectangle, draw, below left=1.5cm and 1cm of vehicle] (car) CAR \\ \tiny doors \\ fuel\_type; \node[rectangle, draw, below right=1.5cm and 1cm of vehicle] (truck) TRUCK \\ \tiny cargo\_capacity \\ axles; \draw (vehicle) -- (car) node[midway, left] ISA (d); \draw (vehicle) -- (truck) node[midway, right] ISA (d); \endtikzpicture \captionGeneralization: Vehicle supertype with Car and Truck subtypes \endfigure entity-relationship diagram exercises and answers pdf
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\vspace2cm \noindent\rule\textwidth0.5pt \textbfAnswer: \beginfigure[H] \centering \begintikzpicture[node distance=2.5cm] \node[rectangle, draw] (member) MEMBER \\ \tiny member\_ID (PK) \\ name \\ phone; \node[rectangle, draw, right=3cm of member] (book) BOOK \\ \tiny ISBN (PK) \\ title \\ author \\ year; \node[diamond, draw, aspect=2, below=1.5cm of $(member.south)!0.5!(book.south)$] (borrows) BORROWS; \node[below=0.2cm of borrows] \tiny borrow\_date, return\_date; \draw (vehicle) -- (car) node[midway
