如何在 LaTeX 中制作模式图？

Question

在模式图中，一个属性（外键）指向不同表的另一个属性。我可以将表指向表，但不能将属性指向属性。

您只需修改我的以下 MWE 即可得到以下结果。一个从到dept_name的instructor箭头。dept_namedepartment

MWE（取自@marmot）

\documentclass[tikz,border=5pt]{standalone}
\usetikzlibrary{positioning,shapes.multipart,shapes}
\begin{document}
\tikzset{basic/.style={
        draw,
        rectangle split,
        rectangle split parts=2,
        rectangle split part fill={blue!20,white},
        minimum width=2.5cm,
        text width=2cm,
        align=left,
        font=\itshape
    },
    Diamond/.style={ diamond, 
                        draw, 
                        shape aspect=2, 
                        inner sep = 2pt,
                        text centered,
                        fill=blue!10!white,
                        font=\itshape
                      }}
\begin{tikzpicture}
\node[basic] (instructor) {instructor
\nodepart{second}
\underline{ID}\\
name\\
salary};
\node[basic,right=5cm of instructor] (department) {department
\nodepart{second}
\underline{dept\_name}\\
building\\
budget};
\draw (instructor) -- (department);
\end{tikzpicture}
\end{document}

我的 MWE 输出

Answer 1

\documentclass[tikz,border=5pt]{standalone}
\usetikzlibrary{calc,positioning,shapes.multipart,shapes}
\begin{document}
\tikzset{basic/.style={
        draw,
        rectangle split,
        rectangle split parts=2,
        rectangle split part fill={blue!20,white},
        minimum width=2.5cm,
        text width=2cm,
        align=left,
        font=\itshape
    },
    Diamond/.style={ diamond, 
                        draw, 
                        shape aspect=2, 
                        inner sep = 2pt,
                        text centered,
                        fill=blue!10!white,
                        font=\itshape
                      }}
\begin{tikzpicture}
\node[basic] (instructor) {instructor
\nodepart{second}
\underline{ID}\\
name\\
dept\_name\\
salary};
\node[basic,right=5cm of instructor] (department) {department
\nodepart{second}
\underline{dept\_name}\\
building\\
budget};
\draw[->] ([yshift=-13pt]$(instructor.east)$) -- ([yshift=1pt]$(department.west)$);
\end{tikzpicture}
\end{document}