how to find the First and Last Observation from the table:
Ex: OBS Name Sal Ans like: OBS Name Sal
105 E 5000--> 105 E 5000
102 B 2000 104 D 4000
103 C 3000
101 A 1000-->
104 D 4000

Answers were Sorted based on User's Feedback



how to find the First and Last Observation from the table: Ex: OBS Name Sal Ans like: OB..

Answer / shailesh jori

select * from table_name where rowid=(select min(rowid) from table_name) or rowid=(select max(rowid) from table_name)

Is This Answer Correct ?    5 Yes 3 No

how to find the First and Last Observation from the table: Ex: OBS Name Sal Ans like: OB..

Answer / ajit

SELECT MIN(Obs)
FROM <Table_name>
UNION ALL
SELECT MAX(Obs)
from <Table_name>;

Is This Answer Correct ?    1 Yes 0 No

how to find the First and Last Observation from the table: Ex: OBS Name Sal Ans like: OB..

Answer / mahendar reddy

select *from t_name where rownum=1
union
(select *from t_name
intersect
select *from t_name where rowid=(select max(rowid)from t-name));

Is This Answer Correct ?    0 Yes 0 No

how to find the First and Last Observation from the table: Ex: OBS Name Sal Ans like: OB..

Answer / arjun

select * from tablename where rowid=1
union
( select * from tablename
intersect
select * from tablename where rowid = ( select max(rowid)
from tablename));

Is This Answer Correct ?    0 Yes 6 No

Post New Answer

More SQL PLSQL Interview Questions

How does index help in query performance?

0 Answers  


What can you do with pl sql?

0 Answers  


Can there be 2 primary keys in a table?

0 Answers  


Can any one tell me how to increase the performance of a sql query ie what are the performance tips in creating or writing a sql query !!?

3 Answers   eBay,


What is a ddl command?

0 Answers  






how to insert values like 10:10:00,30:25:00 etc.into table after insert how can i sum the above insert values to get the result as 40:35:00

3 Answers  


What are pl/sql cursors?

0 Answers  


Which is the correct statement about truncate and delete?

0 Answers  


What is the difference between an inner and outer join?

0 Answers  


what is explain plan?

4 Answers  


Are stored procedures faster than dynamic sql?

0 Answers  


Is primary key is clustered index?

0 Answers  


Categories