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SQL>
SQL>
SQL> -- create demo table
SQL> create table TestTable(
2 ID VARCHAR2(4 BYTE) NOT NULL,
3 MyName VARCHAR2(10 BYTE),
4 MyDate DATE,
5 MyNumber Number(8,2)
6 )
7 /
Table created.
SQL>
SQL>
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values('1','Alison',to_date('19960711','YYYYMMDD'),12.12);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values('1','Alison',to_date('19970622','YYYYMMDD'),2.12);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values('1','Alison',to_date('19980513','YYYYMMDD'),22.1);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values('1','Alison',to_date('19990624','YYYYMMDD'),2.12);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values('1','Alison',to_date('20000415','YYYYMMDD'),2.1);
1 row created.
SQL>
SQL>
SQL> select * from TestTable
2
SQL>
SQL> --LOG: The first argument is the base, and the second is the number that you want to take the log of
SQL>
SQL> SELECT LOG(MyNumber, 2) FROM TestTable;
LOG(MYNUMBER,2)
---------------
.277830427
.922454538
.223915297
.922454538
.934239509
SQL>
SQL>
SQL>
SQL>
SQL> drop table TestTable;
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