New sessions in oracle 10g

Question

I would like to know how many new sessions and user I/O between 9.00am to 12.00PM and 1.00Pm to 4.00PM every day
any scripts run in cron job

Answer 1

created trigger like this but I am getting
Warning: Trigger created with compilation errors.
what is problem in the trigger script
SQL> CREATE TABLE LOGIN_AUDIT_INFO_ALL
username varchar2(30),
session_id number(8),
client_hostname varchar2(30),
client_ip_address varchar2(16),
login_time varchar2(10)
Table created.
SQL> create or replace trigger login_audit_dblevel
2 AFTER LOGON ON DATABASE
3 DECLARE
4 usr varchar2(30);
5 ssn_id number(8);
6 chost varchar2(30);
7 cip varchar2(16);
8 clogin varchar2(10);
9 BEGIN
10 select sys_context(.USERENV.,'SESSION_USER.) into usr from dual;
11 select sys_context(.USERENV.,'SESSIONID.) into ssn_id from dual;
12 select sys_context(.USERENV.,'HOST.) into chost from dual;
13 select sys_context(.USERENV.,'IP_ADDRESS.) into cip from dual;
14 select to_char(SYSDATE,.HH24:MM:SS.) into clogin from dual;
15 insert into login_audit_info_all values(usr, ssn_id,chost,cip, clogin);
16 end;
17 /
Warning: Trigger created with compilation errors.
SQL>