Question

I am not a expert query writer . Scratching my head over this one . Can anyone help me out for this ?

Table tbF

 RecordId      MarketId

    101            1  
    102            1
    201            2
    301            3

Table tbSB

   MarketId          BMId

    1            3
    1            5
    2            1       
    2            2
    2            3
    2            4
    2            5
    3            1

Table tbFM

RecordId    BMId

101            3
102            3
102            5
201            1
201            3
201            4

Now I want a output as

   Record Id   MarketId BMId     Active 
     101        1       3          true
     101        1       5          false
     102        1       3          true
     102        1       5          true
     201        2       1          true
     201        2       2          false
     201        2       3          true
     201        2       4          true
     201        2       5          false
     301        3       1          false          

Active column –>

If the record id present is mapped to the particular BMId its true else false
RecordId belongs to a market . –> Table tbF
Each Market has certain no of BMId mapped for it –>tbSB
Each Recordid has certain no of BMId mapped for it –>tbFM

for each record if the BMid is present in tbFM then active is true
else if the BMId is mapped for records market and not for record then for that record Active is false

Answer 1

SELECT
  f.RecordId
  , f.MId
  , s.BMId
  , Active = CASE 
    WHEN m.RecordID is null THEN 'false'
    ELSE 'true'
    END
FROM tbF f
INNER JOIN tbSB s ON f.MId = S.MId
LEFT JOIN tbFM m ON m.RecordId = f.RecordID AND m.BMId = s.BMId

I’ve taken Active to be determined by the existance within the tbFM table – since the expected output shown in the question matches that logic.