Oracle D2K Question: Download Questions PDF
How to get / select the nth row from the table?
how to select first n rows ,last n rows from a table?
Answer:
nth salary
select salary
from table_name a
where &n=(select count(salary) from table_name b where a.salary<=b.salary);
n salaries
select salary
from table_name a
where &n>=(select count(salary) from table_name b where a.salary<=b.salary);
select level,max(column name) from emp where level = n connect by prior sal > sal group by level;
select salary
from table_name a
where &n=(select count(salary) from table_name b where a.salary<=b.salary);
n salaries
select salary
from table_name a
where &n>=(select count(salary) from table_name b where a.salary<=b.salary);
select level,max(column name) from emp where level = n connect by prior sal > sal group by level;
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