Laravel查询在列上获取不同的值，但是在使用orderby获取最新的不同值之后

Question

I want to show only distinct rows from a table, but those values needs to be the latest ones, which i am filtering from date in the table. Here is my query. The result i am getting is the older row from date, the orderby is not working here i guess. please help. I have attached my table.

$reports= DB::table('resident_assessment')
          -where('resident_assessment.assessment_date','<=',$date)
          -join('assessment_entry','resident_assessment.assessment_id','=','assessment_entry.assessment_id')
          -orderby('resident_assessment.assessment_date','desc')
          -distinct()->get();

Answer 1

SELECT DISTINCT RA.* FROM resident_assessment RA INNER JOIN assessment_entry AE ON 
AE.assessment_id = RA.assessment_id
WHERE RA.assessment_date = $date ORDER BY RA.assessment_date desc 

This is the suitable select statement for your task. This might help you