Need Query... Urgent Please help....

[write2ashokkumar]

hi...

i have the table like this,

Table Name : sample
Total Records : 500000 (Consider like this)

Sample Records:

id ------------ name
======================
1 -------------- AAA
2 -------------- BBB
3 -------------- CCC
2 -------------- AAA
3 -------------- AAA
4 -------------- CCC
1 -------------- BBB
 

i want to search based on the name, i need the id value which is must present
in the all the searching name.



i wrote the query like this... here i built the query dynamicaly.. if the search name is
increase...table self join is increase for each name... how to avoid this.. without
self join how to write the query.....

My query :

Query1:

select a.*
from
     sample a
     inner join sample b on a.id=b.id
where (a.name like 'AAA' and b.name ='BBB');
 

Result:

1 -------------- AAA
2 -------------- BBB
2 -------------- AAA
1 -------------- BBB
 

This the result set for the above query.. but i need the unique id value.. if i
remove the duplicate.. the query will be slow...


Query2:

select a.*
from
     sample a
     inner join sample b on a.id=b.id
where (a.name like 'AA%' and b.name ='BB%');
 

Result:

1 -------------- AAA
2 -------------- BBB
2 -------------- AAA
1 -------------- BBB
 

This the result set for the above query.. but i need the unique id value.. if i
remove the duplicate.. the query will be slow...


But need to fine tune these query...

Is there any other simple way to get the result...?

How to avoid the self join to get the result...

Can u any one help me...?


Thanks & Regards,
S.Ashokkumar.

[Atli]

Thats weird. I ran you query on a table I created like this:

CREATE TABLE test
(
  ID INT NOT NULL,
  Name VARCHAR(255) NOT NULL,
  Primary Key (ID, Name)
)
 

And I get these results:

ID    Name
--------
1    AAA
2    AAA
 

How was your table created?