Question: I am trying to do this that strips "['" or "']" in the string.
For Example, if we have ['Customer Name'] it should be "Customer Name"

```
select regexp_replace("['Customers NY']","\\['|\\']","") as customername;

```

> 
> I am getting this error--
> SQL compilation error: error line 1 at position 22 invalid identifier "['Customers NY']"
> 
> 
>

Answer: 
I managed to make it using *positions*. I assume this would give a better understanding on how to make these kind of shapes.

```css
#cont {
  background: -webkit-linear-gradient(green -50%, #fff);
  width: 300px;
  height: 300px;
  border-radius: 100%;
  padding: 10px;
  position: relative;
  top: 0;
  left: 0;
}

#box {
  background: #fff;
  width: 320px;
  height: 320px;
  border-radius: 100%;
  position: absolute;
  top: 2%;
  left: 0.1%;
}
```

```html
<div id="cont">
  <div id="box"></div>
  <div id="box2"></div>
</div>
```
You can use `:after`  as below.

```css
/*#cont{
  background: -webkit-linear-gradient(green, #fff);
  width: 300px;
  height: 300px;
  border-radius: 1000px;
  padding: 10px;
}*/

#box{
  background: black;
  width: 300px;
  height: 300px;
  border-radius: 1000px;
  position: relative;
}

#box:after{
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  background: white;
  border-radius: 1000px;
  display: block;
    top: 5px;
    position: absolute;
}
```

```html
<div id="cont">
  <div id="box"></div>
</div>
```