How I Update Table With Max(Date)?

Question

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my select query :-

SQL

SELECT   s1.Car_id ',
         s1.Job_Card ',
		 s1.Value_Oil ',
		 s1.Change_date ',
		 s1.Current_Dist ', 
		 s1.Prev_Dist ,
	         Drivers.Driver_Name '',
		 Oil_Type.Oil_Type as ',
                 s1.QTY ',
                 s1.Filter ',
                 s1.Notes '  		 
FROM     Change_Oil s1
inner join (select Car_id, MAX(Change_date) as 'Max date '
		    from Change_Oil
		    group by Car_id ) s2
	    	on s1.Car_id = s2.Car_id 
		    and s1.Change_date = s2.[Max date]	
INNER JOIN dbo.Oil_Type 
		ON s1.Oil_id = dbo.Oil_Type.Oil_id 
INNER JOIN dbo.Drivers 
		ON s1.Driver_ID = dbo.Drivers.Driver_ID
		where s1.Car_id = s2.Car_id

this is my update Query :-

SQL

create proc UPDATE_CHANGE_OIL
@car_id int,
@job_card varchar(8),
@value_oil numeric(18, 2),
@change_date date,
@current_dist numeric(18, 2),
@prev_dist numeric(18, 2),
@drive_id int,
@oil_id int,
@qty numeric(18, 2),
@filter bit,
@notes text
as
update Change_Oil
   set Car_id = @car_id,
       Job_Card = @job_card,
	   Value_Oil = @job_card,
	   Change_date = @change_date,
	   Current_Dist = @current_dist,
	   Prev_Dist = @current_dist,
	   Oil_id = @oil_id,
	   QTY = @qty,
	   Filter = @filter,
	   Notes = @notes
	   where Car_id = @car_id

when i update the row Determined in data grid view please i want where my mistake in Update Query

Posted 10-Jan-16 22:42pm

Member 12244977

Updated 10-Jan-16 23:01pm

Herman<T>.Instance

v2

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Comments

Herman<T>.Instance 11-Jan-16 5:01am

'i want where my mistake in Update Query' ????
What is your problem?

phil.o 11-Jan-16 5:23am

What are all these single quotes in your select query? They shouldn't be here.
Is it a typo on CP or in your query?

ZurdoDev 11-Jan-16 10:21am

This is very unclear. Your title says MAX(Date) but then you don't seem to ask about MAX at all.

So, what exactly is your question?

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snorkie · Accepted Answer · 2016-01-12T02:58:00

Not sure what your error is, but the line

SQL

inner join (select Car_id, MAX(Change_date) as 'Max date '

has an extra space at the end. When you go to use it down below, it may not work cause you're using

SQL

and s1.Change_date = s2.[Max date]

instead of

SQL

and s1.Change_date = s2.[Max date ]

Good luck. Refine your question if you want more help.