I was wondering if there's a way to use at least four conditionals in a case when statement in MYSQL.
CASE
WHEN
rank = 0 AND
visibility != 'visibile' AND
rank = 1 AND
visibility = 'visibile'
THEN 'Yes'
WHEN
rank = 1 AND
visibility != 'visibile' AND
rank = 2 AND
visibility = 'visibile'
THEN 'Yes'
WHEN
rank = 2 AND
visibility != 'visibile' AND
rank = 3 AND
visibility = 'visibile'
THEN 'Yes'
ELSE null
END 'Missing in Sequence'
When ever I use more than 2 conditionals I can't seem to get it to work.
Does anyone have any suggestions?
Thanks
Your query will never work logically. Because, visibility = 'visibile' and visibility != 'visibile' are contradicting each other in every case. So, I tried to correct your CASE statement by creating a nested CASE statement.Try it:
CASE WHEN
((SELECT visibility FROM table WHERE rank=0)!='visibile' AND
(SELECT visibility FROM table WHERE rank=1)='visibile')
THEN 'Yes'
WHEN
((SELECT visibility FROM table WHERE rank=1)!='visibile' AND
(SELECT visibility FROM table WHERE rank=2)='visibile')
THEN 'Yes'
WHEN
((SELECT visibility FROM table WHERE rank=2)!='visibile' AND
(SELECT visibility FROM table WHERE rank=3)='visibile')
THEN 'Yes'
ELSE 'Missing in Sequence' END
Related
I am searching for a way to make the sql statement declare a AS example as Yes when the value is greater than 0 and No if 0 after I count the result while retreiving the data from the database.
This (is not working) is what I tried so far. I hope my tryout is making sence. I first make a select count on planning_clientid the result is 0 or more. If the result is 0 I need timesonplanning (perhaps change that name after its working) to be No and if higher than Yes. So in steady of the count result I need Yes or No, Is this possible?
Part that is not working:
(CASE WHEN(SELECT COUNT(planning_clientid) FROM tbl_planning WHERE planning_afgehandeld = 0 AND a.client_id = planning_clientid)> 0 THEN 'Yes' ELSE 'No' END AS timesonplanning
The whole statement:
SELECT a.*, own1.naam AS resposible_btw, own2.naam AS resposible_client, (CASE WHEN(SELECT COUNT(planning_clientid) FROM tbl_planning WHERE planning_afgehandeld = 0 AND a.client_id = planning_clientid)> 0 THEN 'Yes' ELSE 'No' END AS timesonplanning FROM tbl_clients a LEFT JOIN gebruikers own1 ON own1.id = a.client_ownerob LEFT JOIN gebruikers own2 ON own2.id = a.client_owner
Desired result:
timesonplanning Yes (when count if higher than 0)
timesonplanning No (when count is 0)
The error you indicated in the comments indicates a syntax error (albeit in Dutch). This is indeed to be expected as the query you included doesn’t close the initial parenthesis character ( you used right before your CASE keyword.
Resolve this by removing the initial parenthesis before CASE (as it doesn’t seem particularly necessary in this context), or properly close it by inserting a close parenthesis ) after the END keyword:
SELECT a.*, own1.naam AS resposible_btw, own2.naam AS resposible_client, (CASE WHEN(SELECT COUNT(planning_clientid) FROM tbl_planning WHERE planning_afgehandeld = 0 AND a.client_id = planning_clientid)> 0 THEN 'Yes' ELSE 'No' END) AS timesonplanning FROM tbl_clients a LEFT JOIN gebruikers own1 ON own1.id = a.client_ownerob LEFT JOIN gebruikers own2 ON own2.id = a.client_owner
I got 2 CASE statements: First CASE statement is as follows:
Case When ((cust_shipmentdate_awb Is Null OR cust_shipmentdate_awb = '')
AND (comp_shipdate_awb IS NULL OR comp_shipdate_awb = '')) Then 'Pending'
ELSE 'Shipped' End AS shipment_status
The Second CASE statement is as follows:
Case When apbg_bal_pay_amt ='0' Then 'Received'
Else 'Pending' End AS payment_status
Iam looking to write one more CASE statement named OVERALL_Status. That is basically a combination of both this CASES (shipment_status and payment_status), which means if Shipment status is 'Shipped' AND Payment_Status is 'Received' then Overall_status is 'Completed' else 'Not Completed'. Can anyone please help me on this. I am really struck here. I tried the combination of both the CASES, but not working:
Case When (cust_shipmentdate_awb Is Null OR cust_shipmentdate_awb = '') AND
(comp_shipdate_awb IS NULL OR comp_shipdate_awb = '') AND (apbg_bal_pay_amt != '0') Then
'Pending' ELSE 'Completed' End AS overall_status
There is two solutions as I see it:
1. You make the current query a subquery and add another CASE statement on the result of the subquery. (the pretty solution as I see it)
2. You add another WHEN to the existing case. Combining the clauses in the first two WHEN clauses to get the result. (probably the most optimized solution)
How about this?
(case when (cust_shipmentdate_awb Is Null OR cust_shipmentdate_awb = '') and
(comp_shipdate_awb IS NULL OR comp_shipdate_awb = '')
then 'Not Completed'
when apbg_bal_pay_amt = '0' Then 'Completed'
else 'Not Completed'
end) as overall_status
I am trying to display a field value based on the value of field and then find a external table record.
can I do it?
SELECT
CASE
WHEN (dsp_notes IS NOT NULL) THEN '*'
WHEN (dsp_notes IS NULL) THEN ''
ELSE ''
END,
CASE
WHEN (dsp_priority = '1') THEN [SELECT uvi_value FROM PUB.universalinfo WHERE uvi_key = 'DSP01SHORT']
Is this possible?
Yes. This is called a scalar subquery and it needs to return one column and one row:
(CASE WHEN dsp_priority = '1'
THEN (SELECT ui.uvi_value FROM PUB.universalinfo ui WHERE ui.uvi_key = 'DSP01SHORT')
END) as NewCol
I strongly encourage you to use table aliases on your column references.
I m having a query in which inside a case statement i have put a or statement.
The or statement is not running for some reason.
The example -
update shouts set visibility=(case when (visibility = null or visibility =1)
then 2 else 1 end) where shout_id = 788
Now when visibility is null it should update 2 while for no known reason it is updating the field to 1.
Use the IS operator when comparing with NULL. Because comparing something with NULL will lead to unknown when using the normal operators, which is not true.
update shouts
set visibility = case when visibility IS null or visibility = 1
then 2
else 1
end
where shout_id = 788
I want to point out that you can simplify the logic:
update shouts
set visibility = (case when visibility <> 1 then 1 else 2 end)
where shout_id = 788;
Or even:
update shouts
set visibility = 2 - (visibility <> 1)
where shout_id = 788;
Juergen's is the right solution to the particular problem, though.
I am using two tables here projections_report p and access_rights a. I can't find out why I am getting the error:
subquery returns more than one row
(case when paramChannel='AllC' then p.gl_sal_chan in
(case when dc_lob=0 then (select distinct pr.gl_sal_chan from
projections_report pr) else (select distinct pr1.gl_sal_chan
from projections_report pr1 where pr1.gl_sal_chan
in (select distinct a.gl_sal_chan from access_rights
a where a.userid= paramUserId)) end)
else p.gl_sal_chan = paramChannel end)
I tried using all and any keywords. Please help.
Thanks in advance.
USE LIMIT in sub queries to return only one record as you are using distinct, it might return more than one record
I tried to do it in another way and got it right. Firstly I changed the statement in else condition of second case statement to
(select distinct gl_sal_chan from access_rights where userid = paramUserid)
as both return the same result(my bad) and secondly I changed the entire condition to
(case when (paramChannel = 'AllC' && dc_lob = 0) then '%' = '%' else
(case when (paramChannel='AllC' && dc_lob != 0) then
gl_sal_chan in (select distinct gl_sal_chan from access_rights where userid = paramUserid)
else gl_sal_chan= paramChannel end)end)
Anyway Thanks #all :)