sqlfiddle - sajt na kome možete vežbati SQL (SQL server, MySQL, Oracle, Postgres, SQLite)
Zaključano
Zakačeno
Malo se zekio i zapuco se sajt 
create table test
(
aa varchar(1000)
);
insert into test (aa) values ('http://www.elitesecurity.org');
insert into test (aa) select * from test;
insert into test (aa) select * from test;
....
....
....
insert into test (aa) select * from test;
insert into test (aa) select * from test;
create table test
(
aa varchar(1000)
);
insert into test (aa) values ('http://www.elitesecurity.org');
insert into test (aa) select * from test;
insert into test (aa) select * from test;
....
....
....
insert into test (aa) select * from test;
insert into test (aa) select * from test;
Ovo je super stvar. Znam sam da ima jsfiddle za html, css i javaskript, ali ne i za sql.