Reputation: 3
I have 4 tables and need to get values from 2 of them.
policy policy_id, template_id
quote quote_id, policy_id
quote_clause quote_clause_id, quote_id
quote_clause_variable quote_clause_variable_id, quote_clause_id, variable_name, value
-
Each policy policy_id has 2-3 records of quote quote_id.
Each quote quote_id has 100-200 records of quote_clause
quote_clause_id.
Each quote_clause_id thas600-700 records of quote_clause_variable.
I'm trying to get all the policy_id's that have a specific template_id of 28 and from there, get the quote_clause_variable value where the variable name is 'R01011C1'.
I'm a little lost at this point, neither of the queries below are anywhere near correct.
SELECT policy.policy_id, quote_clause_variable.value
FROM mciaweb.policy
LEFT JOIN mciaweb.quote ON policy_id = policy_id
LEFT JOIN mciaweb.quote_clause ON quote_id = quote_id
LEFT JOIN mciaweb.quote_clause_variable ON quote_clause_id = quote_clause_id
WHERE policy.template_id = '28'
AND variable_name = 'R01011C1';
select
(select value from mciaweb.quote_clause_variable
where variable_name in ('R01011C1')
and quote_clause_id in
(select quote_clause_id from MCIAWEB.quote_clause where quote_id in
(select quote_id from MCIAWEB.quote where policy_id in
(select policy_id from mciaweb.policy where template_id in ('28')
)))) situation,
policy_id
from mciaweb.policy where template_id = '28'
;
Many thanks in advance for any help with this.
Upvotes: 0
Views: 90
Reputation: 4354
Your first query is pretty close, if I understand what you are looking for. Here is what I tried:
SELECT p.policy_id, qcv.value
FROM policy p
INNER JOIN quote q ON p.policy_id = q.policy_id
INNER JOIN quote_clause qc ON qc.quote_id = q.quote_id
INNER JOIN quote_clause_variable qcv ON qcv.quote_clause_id = qc.quote_clause_id
WHERE p.template_id = '28'
AND qcv.variable_name = 'R01011C1';
Upvotes: 1