Syntax

A summary of PRQL syntax:

Syntax Usage Example
| Pipelines from employees | select first_name
= Assigns from e = employees derive total = (sum salary)
: Named args & parameters interp low:0 1600 sat_score
{} Tuples {id, false, total = 3}
[] Arrays [1, 4, 3, 4]
!,&&,==,+ Operators filter a == b + c || d >= e
() Parentheses derive celsius = (fht - 32) / 1.8
\ Line wrap 1 + 2 + 3 + \ 4 + 5
1,100_000,5e10 Numbers derive { huge = 5e10 * 10_000 }
‘’,“” Strings derive name = ‘Mary’
true,false Booleans derive { Col1 = true }
null Null filter ( name != null )
@ Dates & times @2021-01-01
`</code></td><td><a href="$888c529d898eb4d2.md#quoting">Quoted identifiers</a></td><td><code>selectfirst name`
# Comments # A comment
== Self-equality in join join s=salaries (==id)
-> Function definitions let add = a b -> a + b
=> Case statement case [a==1 => c, a==2 => d]
+,- Sort order sort {-amount, +date}
?? Coalesce amount ?? 0