From

Specifies a data source.

from {table_reference}

Table names containing schemas or needing to be quoted for other reasons need to be contained within backticks.

Examples

PRQL

from employees

SQL

SELECT
  *
FROM
  employees

To introduce an alias, use an assign expression:

PRQL

from e = employees
select e.first_name

SQL

SELECT
  first_name
FROM
  employees AS e