mysql case when in clauses - mysql

I have to check the value of #inv_status with below MySQL code but not getting the desired output.
I am expecting "success 1" but it is giving 0, please suggest.
SET #ip_AllocationId = 1;
SET #ip_status = NULL;
SET #inv_status = 4;
SELECT CASE WHEN #inv_status IN(
SELECT
CASE
WHEN #ip_AllocationId = 1 AND ISNULL(#ip_status) THEN (SELECT CONCAT("1",",","4"))
WHEN #ip_AllocationId = 1 AND #ip_status=1 THEN 1
WHEN #ip_AllocationId = 1 AND #ip_status=2 THEN 4
ELSE NULL
END AS filter
) THEN "1" ELSE "0" END AS "success";


Your code is equivalent to this:
SET #ip_AllocationId = 1;
SET #ip_status = NULL;
SET #inv_status = 4;
SELECT #inv_status = (
CASE
WHEN #ip_AllocationId = 1 AND #ip_status IS NULL THEN CONCAT('1',',','4')
WHEN #ip_AllocationId = 1 AND #ip_status=1 THEN 1
WHEN #ip_AllocationId = 1 AND #ip_status=2 THEN 4
END
) AS success;
What you are doing is compare #inv_status to the string '1,4' because the boolean expression #ip_AllocationId = 1 AND #ip_status IS NULL of the 1st branch of the CASE expression is TRUE.
So the result is FALSE and you get 0.
I suspect that you want is something like this:
SET #ip_AllocationId = 1;
SET #ip_status = NULL;
SET #inv_status = 4;
SELECT FIND_IN_SET(#inv_status,
CASE
WHEN #ip_AllocationId = 1 AND #ip_status IS NULL THEN CONCAT('1',',','4')
WHEN #ip_AllocationId = 1 AND #ip_status=1 THEN '1'
WHEN #ip_AllocationId = 1 AND #ip_status=2 THEN '4'
END
) > 0 AS success;
This way you check the existence of #inv_status in a comma separated list of values instead of a straight comparison.
See the demo.


The IN-comparison operator expects a parameter to be a set, not a string. In your values it returns a set but that set constant single string '1,4' which is not same as 1.

Related

MySql select statement with conditional where clause

I am trying to write a MySql statement with a conditional where clause.
something like this:
set #price = 5000 ;
set #city = 1324368075;
select count(*)
from property
where case when #price is not null then
price < #price
end
and (case when #city is not null then
CityId = #city
end)
the variable should be included in the query only if it is not null.
My attempts have failed so far. Any ideas?
Edited:
Sorry I spoke too soon ysth,
these two queries are supposed to yield the same count but they dont.
Edit #2: Execution plan & indexes
Here's the query:
set #CountryId = null ;
set #CityId = 1324368075 ;
set #StateProvince = null ;
set #CategoryId = null ;
set #TransactionTypeId = null;
set #Price = 5000;
SELECT
Count(*)
FROM
meerkat.property
WHERE
(CASE WHEN #CountryId IS NOT NULL THEN CountryId = #CountryId ELSE 1 END)
AND (CASE WHEN #CityId IS NOT NULL THEN CityId = #CityId ELSE 1 END)
AND (CASE WHEN #CategoryId IS NOT NULL THEN CategoryId = #CategoryId ELSE 1 END)
AND (CASE WHEN #StateProvince IS NOT NULL THEN StateProvince = #StateProvince ELSE 1 END)
AND (CASE WHEN #TransactionTypeId IS NOT NULL THEN TransactionTypeId = #TransactionTypeId ELSE 1 END)
AND (CASE WHEN #Price IS NOT NULL THEN Price <= #Price ELSE 1 END)
AND IsPublic = 1
AND IsBlocked = 0;
Thanks in advance

If no when conditions are met, case returns null. If you want each test to pass, you need to return a true value instead, so:
case when #price is not null then
price < #price
else 1 end
and ...

error code 1048 column 'value' cannot be null

i have SP for update the data into new data with this query, so basically every id have own value for own rule_id, and this SP is to update the data with the new one from the SP
CREATE DEFINER=`root`#`localhost` PROCEDURE `update_discount_campaign_advanced2`(IN DiscountCampaignId INT(10),
IN rule_percentage VARCHAR(255),
IN rule_quota_daily_max VARCHAR(255),
IN rule_discount_daily VARCHAR(255),
IN rule_discount_weekly VARCHAR (255),
IN rule_discount_monthly VARCHAR(255),
IN rule_spesific_payment_method VARCHAR(255),
IN rule_spesific_cc_operator VARCHAR(255),
IN allow_other_product VARCHAR(255)
)
proc:
BEGIN
DECLARE is_discount_campaign_id INT(10);
DECLARE is_rule_percentage VARCHAR(255);
DECLARE is_rule_quota_daily_max VARCHAR(255);
DECLARE is_rule_discount_daily VARCHAR(255);
DECLARE is_rule_discount_weekly VARCHAR(255);
DECLARE is_rule_discount_monthly VARCHAR(255);
DECLARE is_rule_spesific_payment_method VARCHAR(255);
DECLARE is_rule_spesific_cc_operator VARCHAR(255);
DECLARE is_allow_other_product VARCHAR(255);
DECLARE param_1_message TEXT;
SET #is_discount_campaign_id = DiscountCampaignId;
SET #is_rule_percentage = rule_percentage;
SET #is_rule_quota_daily_max = rule_quota_daily_max;
SET #is_rule_discount_daily = rule_discount_daily;
SET #is_rule_discount_weekly = rule_discount_weekly;
SET #is_rule_discount_monthly = rule_discount_monthly;
SET #is_rule_spesific_payment_method = rule_spesific_payment_method;
SET #is_rule_spesific_cc_operator = rule_spesific_cc_operator;
SET #is_allow_other_product = allow_other_product;
SELECT CONVERT( CONCAT('Maaf, ID discount_campaign tidak bisa \'0\'') USING UTF8) INTO param_1_message;
IF (DiscountCampaignId = 0) THEN
SELECT param_1_message AS message;
LEAVE proc;
END IF;
IF (DiscountCampaignId != 0) THEN
INSERT INTO discount_campaign_advanced (id,discount_campaign_id,
discount_advanced_rules_id, value, createdAt, status, updatedAt)
select *, CASE WHEN
unitData.id is NULL THEN NULL ELSE NOW() END as updatedAt from (SELECT dca.id , DiscountCampaignId, dar.id as dar_id1, CASE WHEN dar.id = 1
THEN #is_rule_percentage WHEN dar.id = 2 THEN #is_rule_quota_daily_max
WHEN dar.id = 3 THEN #is_rule_discount_daily WHEN dar.id = 4
THEN #is_rule_discount_weekly WHEN dar.id = 5 THEN #is_rule_discount_monthly
WHEN dar.id = 6 THEN #is_rule_spesific_payment_method WHEN dar.id = 7
THEN #is_rule_spesific_cc_operator END, coalesce(dca.createdAt, NOW()), CASE when (dar.id = 1
and #is_rule_percentage != '0') THEN 1 WHEN (dar.id = 2 and
#is_rule_quota_daily_max != '0') THEN 1 WHEN
(dar.id = 3 and #is_rule_discount_daily != '0') THEN 1 WHEN (dar.id = 4 and
#is_rule_discount_weekly != '0') THEN 1
WHEN (dar.id = 5 AND #is_rule_discount_monthly != '0') THEN 1 WHEN (dar.id = 6
AND #is_rule_spesific_payment_method != '0')
THEN 1 WHEN (dar.id = 7 AND #is_rule_spesific_cc_operator != '0') THEN 1 ELSE 0 END as bb
FROM
discount_advanced_rules dar
LEFT JOIN
discount_campaign_advanced dca ON dca.discount_advanced_rules_id = dar.id
and dca.discount_campaign_id = DiscountCampaignId) as unitData
WHERE unitData.bb = 1
UNION
SELECT dca.id, DiscountCampaignId, dca.discount_advanced_rules_id, CASE WHEN dca.discount_advanced_rules_id = 1
THEN #is_rule_percentage WHEN dca.discount_advanced_rules_id = 2 THEN #is_rule_quota_daily_max
WHEN dca.discount_advanced_rules_id = 3 THEN #is_rule_discount_daily WHEN dca.discount_advanced_rules_id = 4
THEN #is_rule_discount_weekly WHEN dca.discount_advanced_rules_id = 5 THEN #is_rule_discount_monthly
WHEN dca.discount_advanced_rules_id = 6 THEN #is_rule_spesific_payment_method WHEN dca.discount_advanced_rules_id = 7
THEN #is_rule_spesific_cc_operator END, coalesce(dca.createdAt, NOW()), CASE when (dca.discount_advanced_rules_id = 1
and #is_rule_percentage != '0') THEN 1 WHEN (dca.discount_advanced_rules_id = 2 and
#is_rule_quota_daily_max != '0') THEN 1 WHEN
(dca.discount_advanced_rules_id = 3 and #is_rule_discount_daily != '0')
THEN 1 WHEN (dca.discount_advanced_rules_id = 4 and
#is_rule_discount_weekly != '0') THEN 1
WHEN (dca.discount_advanced_rules_id = 5
AND #is_rule_discount_monthly != '0') THEN 1 WHEN (dca.discount_advanced_rules_id = 6
AND #is_rule_spesific_payment_method != '0')
THEN 1 WHEN (dca.discount_advanced_rules_id = 7 AND #is_rule_spesific_cc_operator != '0') THEN 1 ELSE 0 END as bb,
NOW()
FROM discount_campaign_advanced dca
WHERE dca.discount_campaign_id = DiscountCampaignId
on duplicate key update id = values(id), discount_campaign_id = values(discount_campaign_id),
discount_advanced_rules_id = values(discount_advanced_rules_id), value = values(value),
createdAt = values(createdAt), status = values(status), updatedAt = values(updatedAt);
END IF;
IF (allow_other_product != 0) THEN
INSERT INTO discount_campaign_advanced (id,discount_campaign_id,
discount_advanced_rules_id, value, createdAt, status, updatedAt)
select *, CASE WHEN
unitData.id is NULL THEN NULL ELSE NOW() END as updatedAt from (SELECT dca.id , DiscountCampaignId, dar.id as dar_id1, CASE WHEN dar.id = 8
THEN #is_allow_other_product END, coalesce(dca.createdAt, NOW()), CASE when (dar.id = 8
and #is_allow_other_product != '0') THEN 1 ELSE 0 END as bb
FROM
discount_advanced_rules dar
LEFT JOIN
discount_campaign_advanced dca ON dca.discount_advanced_rules_id = dar.id
and dca.discount_campaign_id = DiscountCampaignId) as unitData
WHERE unitData.bb = 1
UNION
SELECT dca.id, DiscountCampaignId, dca.discount_advanced_rules_id, CASE WHEN dca.discount_advanced_rules_id = 8 THEN #is_allow_other_product END, coalesce(dca.createdAt, NOW()), CASE when (dca.discount_advanced_rules_id = 8
and #is_allow_other_product != '0') THEN 1 ELSE 0 END as bb,
NOW()
FROM discount_campaign_advanced dca
WHERE dca.discount_campaign_id = DiscountCampaignId
on duplicate key update id = values(id), discount_campaign_id = values(discount_campaign_id),
discount_advanced_rules_id = values(discount_advanced_rules_id), value = values(value),
createdAt = values(createdAt), status = values(status), updatedAt = values(updatedAt);
END IF;
END
but idk why when i call this SP call brambang_uom.update_discount_campaign_advanced2(2757, '5', '5', '1', '1', '1', '1', '1', '9');
it returns Error Code: 1048. Column 'value' cannot be null`, where my wrong at?

Getting the result from the first matched condition and not consider result from the next matched condition

I have a requirement to get the result from the first matched condition and if it finds result in that level then return from there or go to Next level to
find the result .
Any help appreciated.

This is a prioritization query (with ties). One method uses dense_rank():
select rsc.*
from (select rsc.*,
dense_rank() over (order by case when rsc.entityId = :accountId and rsc.entityTypeCode = 'A' then 1
when rsc.entityId = :companyId and rsc.entityTypeCode = 'C' then 2
when rsc.entityId = :issuerId and rsc.entityTypeCode = 'I' then 3
else 4
end) as seqnum
from CurrentRuleSetContents rsc
where (rsc.entityId = :accountId and rsc.entityTypeCode = 'A') or
(rsc.entityId = :companyId and rsc.entityTypeCode = 'C') or
(rsc.entityId = :issuerId and rsc.entityTypeCode = 'I') or
(rsc.industryCode = :industryCode)
) rsc
where seqnum = 1;

not retrieving exact result from case statement

I am using below query but Y column not retrieving exact result. Could you guys please help me out
SELECT FAPI.*,
CASE WHEN (SELECT DISTINCT 'Y'
FROM FLOOR_PI FAPI,
NUATON NUMF
WHERE FAPI.BRCH = NUMF.BRCH
AND FAPI.BASE = NUMF.BASE
AND FAPI.NUM = 0
AND NVL(FAPI.RATION, 'X') <> 'D'
AND FAPI.CODE = 'A'
AND NUMF.R_DATE
BETWEEN FAPI.EFF_DATE
AND FAPI.EXP_DATE ) = 'Y'
THEN 'Y'
ELSE 'N' END NEW
FROM FLOOR_PI FAPI
Thank you,
Rave

Based on #SlimsGohst comment:
You should replace FAPIx with FAPI1 or FAPI2 whichever is applicable
SELECT FAPI1.*,
CASE WHEN (SELECT DISTINCT 'Y'
FROM FLOOR_PI FAPI2,
NUATON NUMF
WHERE FAPIx.BRCH = NUMF.BRCH
AND FAPIx.BASE = NUMF.BASE
AND FAPIx.NUM = 0
AND NVL(FAPIx.RATION, 'X') <> 'D'
AND FAPIx.CODE = 'A'
AND NUMF.R_DATE
BETWEEN FAPIx.EFF_DATE
AND FAPIx.EXP_DATE ) = 'Y'
THEN 'Y'
ELSE 'N' END NEW
FROM FLOOR_PI FAPI1

SQL ORDER BY query

I want to have my table,rcarddet, ordered by "SDNO" (not primary key) in ascending order with the exception of "0". So it should turn out to be like:
1
1
2
.
.
10
0
0
My query now is:
SELECT *
FROM `rcarddet`
WHERE `RDATE` = '2011-05-25'
AND `RCNO` = '1'
AND `PLACE` = 'H'
AND `SDNO` != 0
ORDER BY `rcarddet`.`SDNO` ASC;

The easiest way
SELECT * FROM rcarddet
WHERE RDATE = '2011-05-25' and RCNO = '1'and PLACE = 'H'
ORDER BY CASE
WHEN rcarddet.SDNO = 0 THEN [max_number_for_the_type_of_SDNO]
ELSE rcarddet.SDNO
END ASC

SELECT *
FROM `rcarddet`
WHERE `RDATE` = '2011-05-25'
AND `RCNO` = '1'
AND `PLACE` = 'H'
ORDER BY
`SDNO` = 0,
`SDNO`;