# Add columns at the end of the table
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If you create tables in any of the formats that Athena supports, such as Parquet, ORC, Avro, JSON, CSV, and TSV, you can use the `ALTER TABLE ADD COLUMNS` statement to add columns after existing columns but before partition columns.

The following example adds a `comment` column at the end of the `orders_parquet` table before any partition columns: 

```
ALTER TABLE orders_parquet ADD COLUMNS (comment string)
```

**Note**  
To see a new table column in the Athena Query Editor after you run `ALTER TABLE ADD COLUMNS`, manually refresh the table list in the editor, and then expand the table again.