Best SQL for this query - sql

Question

EDIT: So to make it easier we have two tables we need for this query.
1) Account_Cycle_Activity
2) Card_Account
The five columns we will be analyzing from 1) table are.
ACCOUNT_ID
ACTIVITY_TYPE_CDE
CYCLE_CTR
ACTIVITY_GROUP_CODE
CYCLE_ACTIVITY_COUNT
and the column required to know from 2) table are
ACCOUNT_ID
CYCLE_CTR
The logic is:
In ACCOUNT_CYCLE_ACTIVITY table find a row with ACTIVITY_TYPE_CODE = '007' OR '011' OR '021' and ACTIVITY_GROUP_CODE = 'R12' and CYCLE_ACTIVITY_AMOUNT greater than $25 and CYCLE_ACTIVITY_COUNT between 1 to 900 -- This is the first clause of my query.
And for the row which we just found above, its CYCLE_CTR column should be equal to the CYCLE_CTR column value from CARD_ACCOUNT table CYCLE_CTR minus 1. -- This is the second clause
Now this is the EXIST part of query
If you find a row like this, and there are also no rows in the table for the same ACCOUNT_ID with the same ACTIVITY_TYPE_CODE and same ACTIVITY_GROUP_CODE and CYCLE_ACTIVITY_COUNT = 1 with CYCLE_CTR anywhere between the first row's CYCLE_CTR -6 through the first row's CYCLE_CTR - 1, report the account.
I came up with the below query
SELECT *
FROM ACCOUNT_CYCLE_ACTIVITY aca
inner join card_account ca on ca.account_id = aca.ACCOUNT_ID
WHERE ACTIVITY_TYPE_CODE in('011', '021', '007')
and ACTIVITY_GROUP_CODE= 'R12'
and (CYCLE_ACTIVITY_AMOUNT) > 25
and CYCLE_ACTIVITY_COUNT =1
and aca.cycle_ctr = ca.cycle_ctr - 1
and NOT EXISTS
(SELECT aca2.ACCOUNT_ID
FROM ACCOUNT_CYCLE_ACTIVITY aca2
where ca.account_id = aca2.ACCOUNT_ID
and aca2.ACTIVITY_TYPE_CODE=aca.activity_type_code
and aca2.ACTIVITY_GROUP_CODE= aca.activity_group_code
and CYCLE_ACTIVITY_COUNT =1
and aca2.cycle_ctr between aca.cycle_ctr - 6 and aca.cycle_ctr - 1);
Any ides on how to write it more efficiently to improve running time?

Answer 1

try a left (outer) join
SELECT aca.*, ca.*
FROM card_account ca
inner join ACCOUNT_CYCLE_ACTIVITY aca
on aca.account_id = ca.ACCOUNT_ID
and aca.ACTIVITY_TYPE_CODE in ('011', '021', '007')
and aca.ACTIVITY_GROUP_CODE = 'R12'
and aca.CYCLE_ACTIVITY_COUNT = 1
and aca.cycle_ctr = ca.cycle_ctr - 1
and aca.CYCLE_ACTIVITY_AMOUNT > 25
left join ACCOUNT_CYCLE_ACTIVITY aca2
on aca2.account_id = aca.ACCOUNT_ID
and aca2.ACTIVITY_TYPE_CODE = aca.activity_type_code
and aca2.ACTIVITY_GROUP_CODE = aca.activity_group_code
and aca2.CYCLE_ACTIVITY_COUNT = aca.CYCLE_ACTIVITY_COUNT
and aca2.cycle_ctr between aca.cycle_ctr - 6 and aca.cycle_ctr - 1
where aca2.ACCOUNT_ID is null