count

Counts the total number of time series that match the query. If grouping is specified, it counts the total number for each group.

count syntax

count [by FIELD [, FIELD, ...]]
```    

## count examples

### Count of time series for a metric

This query returns the number of time series for the `size` metric. 

```sql
metric=size | count

Count of time series for a metric by IP address

This query returns the number of time series for the size metric by src_ip. 

metric=size | count by src_ip

Count of 4xx errors by method

This example shows a query in the Metrics Explorer in basic mode. In advanced mode, the query would look like:

metric=4XXError | count by method

In this query, we're searching for how many 4xx errors occurred by different methods, for example GET, PUT, DELETE, and so on.