lab3

SQL> connect system/password
Connected.
SQL> connect new_user/password
Connected.
SQL> set timing on;

SQL> create table int_table(
2 number_pole NUMBER(11) NOT NULL,
3 key_pole VARCHAR(35) NOT NULL,
4 primary key (key_pole));

Table created.

Elapsed: 00:00:00.16

SQL> GRANT INSERT, UPDATE, DELETE on int_table TO new_user;

Grant succeeded.

SQL> grant select on int_table to new_user;

Grant succeeded.

Elapsed: 00:00:00.03
SQL> insert into int_table values (1, 'a');

1 row created.

Elapsed: 00:00:00.05
SQL> insert into int_table values (2, 'b');

1 row created.

Elapsed: 00:00:00.04
SQL> insert into int_table values (3, 'c');

1 row created.

Elapsed: 00:00:00.04
SQL> insert into int_table values (4, 'd');

1 row created.

Elapsed: 00:00:00.05
SQL> insert into int_table values (5, 'e');

1 row created.

Elapsed: 00:00:00.04
SQL> alter table int_table add number_pole2 number(5, 0);

Table altered.

Elapsed: 00:00:00.11
SQL> update int_table
2 set number_pole2=mod(1+13+33, 17)
3 where number_pole=1;

1 row updated.

Elapsed: 00:00:00.07
SQL> update int_table
2 set number_pole2=mod(2+13+33, 17)
3 where number_pole=2;

1 row updated.

Elapsed: 00:00:00.04
SQL> update int_table
2 set number_pole2=mod(3+13+33, 17)
3 where number_pole=3;

1 row updated.

Elapsed: 00:00:00.04
SQL> update int_table
2 set number_pole2=mod(4+13+33, 17)
3 where number_pole=4;

1 row updated.

Elapsed: 00:00:00.05
SQL> update int_table
2 set number_pole2=mod(5+13+33, 17)
3 where number_pole=5;

1 row updated.

Elapsed: 00:00:00.05
SQL> select * from int_table
2 ;

NUMBER_POLE KEY_POLE NUMBER_POLE2
----------- ----------------------------------- ------------
1 a 13
2 b 14
3 c 15
4 d 16
5 e 0

Elapsed: 00:00:00.11
SQL> select max(number_pole2) from int_table;

MAX(NUMBER_POLE2)
-----------------
16

Elapsed: 00:00:00.07
SQL> select min(number_pole2) from int_table;

MIN(NUMBER_POLE2)
-----------------
0

Elapsed: 00:00:00.07
SQL> select sum(number_pole2) from int_table;

SUM(NUMBER_POLE2)
-----------------
58

Elapsed: 00:00:00.06
SQL> select stddev(number_pole2) from int_table;

STDDEV(NUMBER_POLE2)
--------------------
6.58027355

Elapsed: 00:00:00.07
SQL> delete from int_table where mod(number_pole2, 2)=0;

3 rows deleted.

Elapsed: 00:00:00.06
SQL> select * from int_table;

NUMBER_POLE KEY_POLE NUMBER_POLE2
----------- ----------------------------------- ------------
1 a 13
3 c 15

Elapsed: 00:00:00.09
SQL> set timing off;
SQL> spool out;