---
title: dfr join
layout: command
version: 0.59.1
---

Joins a dataframe using columns as reference

## Signature

```> dfr join (dataframe) --left --right --type --suffix```

## Parameters

 -  `dataframe`: right dataframe to join
 -  `--left {table}`: left column names to perform join
 -  `--right {table}`: right column names to perform join
 -  `--type {string}`: type of join. Inner by default
 -  `--suffix {string}`: suffix for the columns of the right dataframe

## Examples

inner join dataframe
```shell
> let right = ([[a b c]; [1 2 5] [3 4 5] [5 6 6]] | dfr to-df);
    $right | dfr join $right -l [a b] -r [a b]
```