What is the output of the the query: select 'Sql' from dual where null is null;

What is the output of the below query: if table A is having 16 rows: select count(*) from A having 1=10;

The below query can be used to get distinct sal from emp table: select unique sal from emp;

Output of the query if emp table is having 100 rows: select rownum from emp group by rownum having rownum = 69;

Which pl/sql block gives error? A) begin null; end; B) begin return; end; C) declare begin null; return; end; D) begin end;

If emp table having 10 records what is the output of : select * from emp where rownum=8;

If the sources are comming from homogeneous databases then which transformation is required to join the sources?

Stroed Procedure is --- transformation.

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In databases, a view is which of the following?