Dear Abang Sunda
just trying to help...
berdasarkan pengalaman saya, biasanya pake statement 'exists' jauh lebih cepat
dr pd pake 'in'
kurang lebih query-nya biasa dirubah jd..
select a.trx_number,trx_date
from customer_trx a
where exists ( select b.trx_number
from customer_trx b
where b.trx_date > '01-JUN-07'
and b.trx_number = a.trx_number
group by b.trx_number having count(*) > 1)
semoga bermanfaat, or any ather suggestion guys..??
regards,
Dony Wid
----- Original Message ----
From: abang sunda <[EMAIL PROTECTED]>
To: [email protected]
Sent: Wednesday, March 5, 2008 3:05:49 PM
Subject: [indo-oracle] ask : query
dear all,
apakah mungkin query ini bisa lebih
di sederhanain lagi agar efisien dan lebih cepat ,
atau ada alternatif lain ?
select trx_number,trx_ date from customer_trx
where trx_number in(
select trx_number from customer_trx
where trx_date > '01-JUN-07'
group by trx_number having count(*) > 1)
regards
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