PostgreSQL FACTORIAL

Postgresql factorial operator

Returns a factorial of a number.

Syntax factorial operator

a is a number.

a!

or

!!a

Example 1

               
postgres=# SELECT 3! as f3;
 f3 
----
  6
(1 row)

Example 2

postgres=# SELECT 6! as f6;
 f6  
-----
 720
(1 row)

Example 3

postgres=# SELECT !!6 as f6;
 f6  
-----
 720
(1 row)

Related Links

• Postgresql Mathematical Operators
• Learning PostgreSQL
• Tutorial Home

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1. addition(+)
2. subtraction(-)
3. multiplication(*)
4. division(/)

1. modulo(%)
2. exponentiation(^)
3. square root(|/)
4. cube root(||/)

1. factorial(!)
2. absolute value(@)
3. bitwise AND(&)
4. bitwise OR(|)

1. bitwise XOR(#)
2. bitwise NOT(~)
3. bitwise shift left(<<)
4. bitwise shift right(>>)