## Synopsis

Use the `BYTEA` data type to represent binary string of bytes (octets). Binary strings allow zeros (`0`) and non-printable bytes.

Data type | Description |
----------|-------------|
BYTEA | Variable length binary string |

## Description

- `BYTEA` is used to declare a binary entity.

```
type_specification ::= BYTEA
```

- Escaped input can be used for input binary data.

```
SELECT E'\\001'::bytea
```