How to write conditional select statement in mysql for this Q.

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Hi I want to select All of removed tyre from my Vehicle table and also want to select all Newissue Tyre from table Vehicle wich are not have removed this is table.

Detail_ID| Nessesity| VehicleNo| Activity | MetreReading| SerialNo| WarrantyUPTO|
        5	Tyre	  CG04JC7882| NEW ISSUE| 1000	     |  MRF-1  | 31/10/2020
        6	Tyre	  CG04JC7882| NEW ISSUE| 1000	     |  MRF-2  | 31/10/2020
        7	Tyre	  CG04JC7882| NEW ISSUE| 1000	     |  MRF-3  | 31/10/2020
        8	Tyre	  CG04JC7882| NEW ISSUE| 1000	     |  MRF-4  | 31/10/2020
        9	Tyre	  CG04JC7882| REMOVE   | 2000	     |  MRF-4  | 31/10/2020
        10	Tyre	  CG04JC7882| NEW ISSUE| 2000	     |  MRF-5  | 31/10/2020

What I have tried:

i am using this statement 

<pre>Select SerialNo From necessitycompdetail where VehicleNo='CG04JC7882' and Activity='REMOVE' or (Select SerialNo From necessitycompdetail where Activity!='NEW ISSUE')



 
Select SerialNo From necessitycompdetail where VehicleNo='CG04JC7882' and Activity!='REMOVE' or (Select SerialNo From necessitycompdetail where Activity='NEW ISSUE')

First One is working Fine but second one is giving error

Error Code: 1242. Subquery returns more than 1 row

Please Help me

Posted 21-Aug-20 1:53am

Asif 7969814

Updated 21-Aug-20 2:27am

CHill60

v5

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CHill60 21-Aug-20 8:30am

My bad - I tried to tidy up the question and some weird things happened. I've rolled back to your original. My apologies

Asif 7969814 21-Aug-20 8:36am

it's Ok

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OriginalGriff · Accepted Answer · 2020-08-21T02:27:00

OR is a logical (or boolean) operation - it expects a condition on either side.
So this would work:

SQL

SELECT SerialNo FROM necessitycompdetail 
WHERE VehicleNo = 'CG04JC7882' 
  AND (Activity = 'REMOVE' OR  Activity = 'NEW ISSUE')

But I'm not sure exactly what you are trying to do: are you trying to get tyres which have not been removed - perhaps a list of what you want to get from your sample data would help?