-- --------------------------------------------------------------------------------
-- Routine DDL
-- --------------------------------------------------------------------------------
DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `storage_choices_according_to_criteria`(
IN storage_calc_usage BIGINT,
IN all_provider_considered BOOLEAN,
IN provider_LIST varchar(200),
IN has_requests BOOLEAN
)
BEGIN
IF storage_calc_usage > 0 THEN
drop table if exists `storage_choices_expanded`;
CREATE TEMPORARY TABLE `storage_choices_expanded` AS
(select *,
usage_each_plan * standard_storage as price_storage,
concat_ws(' ',`Provider Name`,`Name`,`region_name`) as group_name
from
(SELECT *,
(
if(
(quota_band_high is not NULL) and storage_calc_usage>quota_band_high,
quota_band_high,
storage_calc_usage
) - quota_band_low
) as usage_each_plan
FROM `storage_service_price`
where storage_calc_usage > quota_band_low
and if(all_provider_considered, 1, find_in_set(`Provider Name`,provider_LIST))
) as storage_usage_each_plan
);
drop table if exists `request_options_for_storage`;
if has_requests then
CREATE TEMPORARY TABLE `request_options_for_storage` as
SELECT
price_storage_requests.*,
n,
(n / per_unit_amount)*request_price as cost
FROM `storage_request_criterias`
right join price_storage_requests
on price_storage_requests.storage_request_name = storage_request_criterias.name
;
else
CREATE TEMPORARY TABLE `request_options_for_storage` as
select *,
0 as cost,
0 as n
from `price_storage_requests`
where 0=1
;
end if;
drop table if exists `choices_storage_summed`;
CREATE TEMPORARY TABLE `choices_storage_summed` AS
select
summed.*,
total_storage_cost + if(total_requests_cost is NULL,0,total_requests_cost) as 'Total Price',
total_requests_cost,
request_type_id_list
from
(
select *,
sum(price_storage) as total_storage_cost,
count(group_name) as count
from storage_choices_expanded
group by group_name
) as summed
left join
(
select
sum(cost) as total_requests_cost,
GROUP_CONCAT(request_options_for_storage.id) as request_type_id_list,
resource_type_id
from `request_options_for_storage`
group by resource_type_id
) as requests
on requests.resource_type_id = summed.resource_type_id
where
(
count=1
and
if(quota_band_high is NULL,1,storage_calc_usage<=quota_band_high)
)
or count>1
order by 'Total Price' asc
;
END IF;
END
以上是我调用的 PROCEDURE，但是当我尝试从 table 中选择时choices_storage_summed，它给了我一个Table doesn't exist错误。
我通过 jdbc 连接以编程方式调用了 PROCEDURE，我使用的是相同的连接。以下代码显示了我如何调用该过程：
private static void calcChoicesStorageSummed(Map<String, Integer> requests, boolean consider_all_provider, String provider_list, Integer storage_calc_usage, Integer daysInUse) throws SQLException {
storage_calc_usage = storage_calc_usage * (daysInUse / DAYS_PER_MONTH);
Boolean has_requests = insertIntoStorageRequestCriterias(requests);
CallableStatement cs = conn.prepareCall("call "+db+".storage_choices_according_to_criteria(?,?,?,?);");
cs.setInt("storage_calc_usage", storage_calc_usage);
cs.setBoolean("all_provider_considered", consider_all_provider);
cs.setString("provider_LIST", provider_list);
cs.setBoolean("has_requests", has_requests);
cs.executeQuery();
cs.close();
}
这是尝试访问临时表的代码，conn它是一个全局变量，在相关操作期间保持不变。
calcChoicesStorageSummed(requests,(provider_name_list == null),provider_name_list,storage_usage,duration);
/**
* debug
*/
sql = "select * from choices_storage_summed ";
sql += ";";
prest = conn.prepareStatement(sql);
rs = prest.executeQuery();
while (rs.next()) {
System.out.println(rs.getString("standard_storage"));
}