\draw (dept) -- (manages) node[midway, above] 1; \draw (emp) -- (manages) node[midway, below] 1; \endtikzpicture \captionCompany ERD \endfigure
\textbfTask: Draw the ERD showing: \beginitemize \item One-to-Many relationship between Department and Employee (works-in). \item One-to-One relationship between Employee and Department (manages). \item Indicate mandatory/optional participation. \enditemize entity-relationship diagram exercises and answers pdf
\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 \draw (dept) -- (manages) node[midway, above] 1; \draw
\documentclass[12pt,a4paper]article \usepackage[utf8]inputenc \usepackagegeometry \geometrymargin=1in \usepackagegraphicx \usepackagetikz \usetikzlibraryshapes,arrows,positioning,fit \usepackagefloat \usepackagehyperref \usepackageenumitem \usepackagetcolorbox \enditemize \vspace2cm \noindent\rule\textwidth0
\newpage