---
title: "Data Joining"
category: 12-data
level: intermediate
stability: stable
description: "Apply data joining in AI agent workflows."
added: "2025-03"
---

![Dependency Status](https://img.shields.io/endpoint?url=https://samotech.github.io/skills-tree/badges/skills-12-data-data-joining.json)

# Data Joining

**Category:** `data`  
**Skill Level:** `intermediate`  
**Stability:** `stable`
**Added:** 2025-03

### Description

Merge two or more datasets on shared keys using inner, left, right, or full outer joins.

### Example

```python
result = pd.merge(orders_df, customers_df, on='customer_id', how='left')
```

### Related Skills

- [Data Aggregation](data-aggregation.md)
- [SQL Query Execution](sql-execution.md)
