Graphviz Example: database erd
digraph G {
checklists [shape=none, margin=0, label=<
<table border="1" cellborder="0" cellspacing="0" cellpadding="4">
<tr><td colspan="2"><b>checklists</b></td></tr>
<tr>
<td PORT="todo_id" bgcolor="#EEEEEE" align="left">todo_id</td>
<td align="right" bgcolor="#EEEEEE"><font point-size="10">INT not null auto_increment </font></td>
</tr>
<tr>
<td PORT="task_id" align="left">task_id</td>
<td align="right" ><font point-size="10">INT not null </font></td>
</tr>
<tr>
<td PORT="todo" bgcolor="#EEEEEE" align="left">todo</td>
<td align="right" bgcolor="#EEEEEE"><font point-size="10">VARCHAR(255) not null </font></td>
</tr>
<tr>
<td PORT="is_completed" align="left">is_completed</td>
<td align="right" ><font point-size="10">TINYINT(1) not null </font></td>
</tr>
</table>>];
checklists:task_id -> tasks:task_id
tasks [shape=none, margin=0, label=<
<table border="1" cellborder="0" cellspacing="0" cellpadding="4">
<tr><td colspan="2"><b>tasks</b></td></tr>
<tr>
<td PORT="task_id" bgcolor="#EEEEEE" align="left">task_id</td>
<td align="right" bgcolor="#EEEEEE"><font point-size="10">INT not null auto_increment </font></td>
</tr>
<tr>
<td PORT="title" align="left">title</td>
<td align="right" ><font point-size="10">VARCHAR(255) not null </font></td>
</tr>
<tr>
<td PORT="start_date" bgcolor="#EEEEEE" align="left">start_date</td>
<td align="right" bgcolor="#EEEEEE"><font point-size="10">DATE </font></td>
</tr>
<tr>
<td PORT="due_date" align="left">due_date</td>
<td align="right" ><font point-size="10">DATE </font></td>
</tr>
<tr>
<td PORT="status" bgcolor="#EEEEEE" align="left">status</td>
<td align="right" bgcolor="#EEEEEE"><font point-size="10">TINYINT not null </font></td>
</tr>
<tr>
<td PORT="priority" align="left">priority</td>
<td align="right" ><font point-size="10">TINYINT not null </font></td>
</tr>
<tr>
<td PORT="description" bgcolor="#EEEEEE" align="left">description</td>
<td align="right" bgcolor="#EEEEEE"><font point-size="10">TEXT </font></td>
</tr>
<tr>
<td PORT="created_at" align="left">created_at</td>
<td align="right" ><font point-size="10">TIMESTAMP null </font></td>
