SQRT is one of the vital Numeric/Math functions of Oracle. It is used to get the square root of a number. The SQRT function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i and Oracle 8i.
SQRT ( number )
number: It is used to specify the number to get the square root value of.
The square root of 25 is 5, and so is the result.