Question: I would like to get all the fields in a database, `information_schema` is not available.

However, I can show the fields of a single table using

`show columns from table`

How can I add another show command?
I tried `UNION`, but it gives me syntax error.

Answer: 
Depending on the [browser support](https://developer.mozilla.org/en/docs/Web/CSS/clip-path#Browser_compatibility) needed, You can use clip-path:

```css
#trapezoid {
  background: url(https://upload.wikimedia.org/wikipedia/commons/8/83/Jho_Arce_User_Profile_Image.jpg) no-repeat;
  background-size: cover;
  height: 100px;
  width: 200px;
  margin: auto;
  -webkit-clip-path: polygon(100% 0, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0 0);
  clip-path: polygon(100% 0, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0 0)
}

body {
  background: silver;
}
```

```html
<div id="trapezoid"></div>
```
Using `:before` and `:after` to place 2 triangles at the bottom

```css
#trapezoid {
width: 200px;
height: 100px;
background-color: red;
position: relative;
}
#trapezoid:before {
content: "";
width: 0;
height: 0;
border-style: solid;
border-width: 0 30px 30px 30px;
border-color: transparent transparent white transparent;
display: block;
transform: rotate(-135deg);
position: absolute;
bottom: -5px;
left: -20px;
}
#trapezoid:after {
content: "";
width: 0;
height: 0;
border-style: solid;
border-width: 0 30px 30px 30px;
border-color: transparent transparent white transparent;
display: block;
transform: rotate(135deg);
position: absolute;
bottom: -5px;
right: -20px;
}
```

```html
<div id="trapezoid"></div>
```