PostgreSQL/Math Functions/abs

abs(x) absolute value

postgres=# -- abs(x) absolute value
postgres=#
postgres=# select abs(-17.4) ;
 abs
------
 17.4
(1 row)
postgres=#
postgres=#

abs(x): Returns the absolute value of x

postgres=#
postgres=# -- abs(x): Returns the absolute value of x
postgres=# select abs(-100) AS abs_negative;
 abs_negative
--------------
          100
(1 row)
postgres=#
postgres=#