Which of the following is not true about 'Dual'

Keep practicing — related questions

• select dummy,count(1) from dual group by dummy; O/p:
• select dummy from dual minus select * from dual what would be output ?
• The o/p of the below two queries would be same.. 1.select '1'+1 from dual; 2.select 1+1 from dual;
• select rownum from dual;
• select dummy from dual ?
• What is the result of the following SQL: Select 1 from dual UNION Select 'A' from dual;
• Output of the below two queries would be same.. 1.select 1 from dual; 2.select '1' from dual;
• The o/p of the below query.. select 0/1 from dual group by dummy;