Oracle PL/SQL Tutorial/Numerical Math Functions/EXP

EXP(1)

SQL> select EXP(1) from dual;
    EXP(1)
----------
2.71828183

EXP(2)

SQL> select EXP(2) from dual;
    EXP(2)
----------
 7.3890561

Using the EXP function

SQL>
SQL> -- create demo table
SQL> create table myTable(
  2    id           NUMBER(2),
  3    value        NUMBER(6,2)
  4  )
  5  /
Table created.
SQL>
SQL> -- prepare data
SQL> insert into myTable(ID,  value)values (1,9)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (2,2.11)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (3,3.44)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (4,-4.21)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (5,10)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (6,3)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (7,-5.88)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (8,123.45)
  2  /
1 row created.
SQL> insert into myTable(ID,  value)values (9,98.23)
  2  /
1 row created.
SQL>
SQL> select * from myTable
  2  /
        ID      VALUE
---------- ----------
         1          9
         2       2.11
         3       3.44
         4      -4.21
         5         10
         6          3
         7      -5.88
         8     123.45
         9      98.23
9 rows selected.
SQL>
SQL> SELECT EXP(value) FROM myTable
  2  /
EXP(VALUE)
----------
8103.08393
8.24824128
31.1869582
.014846368
22026.4658
20.0855369
.002794785
4.1082E+53
4.5788E+42
9 rows selected.
SQL>
SQL> -- clean the table
SQL> drop table myTable
  2  /
Table dropped.
SQL>