drop table t_detail_1 ; drop table t_detail_2 ; drop table t_detail_3 ; drop table t_detail_4 ; drop table t_detail_5 ; drop table t_detail_6 ; drop table t_detail_7 ; drop table t_detail_8 ; drop table t_detail_9 ; drop table t_detail_10 ; drop table t_detail_11 ; drop table t_detail_12 ; drop table t_detail_13 ; drop table t_detail_14 ; drop table t_detail_15 ; drop table t_detail_16 ; drop table t_detail_17 ; drop table t_detail_18 ; drop table t_detail_19 ; drop table t_detail_20 ; drop table t_detail_21 ; drop table t_detail_22 ; drop table t_detail_23 ; drop table t_detail_24 ; drop table t_detail_25 ; drop table t_detail_26 ; drop table t_detail_27 ; drop table t_detail_28 ; drop table t_detail_29 ; drop table t_detail_30 ; drop table t_detail_31 ; CREATE TABLE t_detail_1( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_2 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_3 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_4 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_5 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_6 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_7 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_8 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_9 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_10 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_11 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_12 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_13 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_14 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_15 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_16 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_17 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_18 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_19 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_20 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_21 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_22 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_23 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_24 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_25 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_26 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_27 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_28 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_29( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_30 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ; CREATE TABLE t_detail_31 ( login_name VARCHAR2(10) , login_ip VARCHAR2(32), login_date DATE, logout_date DATE, lab_ip VARCHAR2(32), time_duration NUMBER(10) ) ;