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Evidence supports almost all Markdown syntax. 
---
title: Evidence uses Markdown
---

Markdown can be used to write expressively in text.

- it supports lists,
- **bolding**, _italics_ and `inline code`,
- links to [external sites](https://google.com) and other [Evidence pages](/another/page)

​
Components

Evidence has a built in component library to create charts and other visual elements. The components use Markdoc syntax. 
{% line_chart
    data="demo_daily_orders"
    x="date"
    y="sum(sales)"
    date_grain="month"
%}
The easiest way to add a component is using a slash command, and starting to type the name - press tab to select it.

​
SQL

Code fences in Evidence markdown pages run queries and return data. These code fences run the ClickHouse SQL dialect. 
```sql ten_daily_orders
select * from demo_daily_orders limit 10
```
You can then use the data in your markdown using the data attribute. 
{% table
    data="ten_daily_orders"
%}

​
Inline Query References

You can reference other inline queries within your SQL using the {{query_name}} syntax. The referenced query will be wrapped in parentheses and substituted in place. 
```sql top_categories
select category, sum(sales) as total_sales
from demo_order_details
group by category
order by total_sales desc
limit 5
```

```sql category_breakdown
select 
    category,
    item_name,
    sum(sales) as item_sales
from demo_order_details
where category in (select category from {{top_categories}})
group by category, item_sales desc
order by category, item_sales desc
```
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