SQRT

     This will give the square root of the given value.

     Syntax: sqrt (value)      --  here value must be positive.

     Ex:

          SQL> select sqrt(4), sqrt(0), sqrt(null), sqrt(1) from dual;

                        SQRT(4)    SQRT(0) SQRT(NULL)    SQRT(1)

----------    ---------- ---------------    ----------

         2               0                                            1