Question

This had been asked multiple times, but I am not finding a solution that works for me. I have a view similar to below. I need to run a query that returns all of the columns, but only once for any unique GLASS_ID. I also need a where clause WHERE GLASS_ID LIKE ‘%’ + @PartialGlassId + ‘%’

VEH_ID   GLASS_ID   OPENING_SEQ  PART_NUM  PREFIX_CD ANT_FLAG  BLK_SIZE1
26975     DB00201        1          201       DB        Y        14.00
26864     DB00375        1          375       DB        N        16.00
26865     DB00375        1          375       DB        N        16.00
26866     DB00375        1          375       DB        N        16.00
38929     DB00408        1          408       DB        N        12.00
38930     DB00408        1          408       DB        N        12.00
38931     DB00408        1          408       DB        N        12.00
38932     DB00408        1          408       DB        N        12.00
38933     DB00408        1          408       DB        N        12.00
38990     DB00408        1          408       DB        N        12.00
38991     DW01015        1         1015       DB        N        12.00

The results should be

VEH_ID  NAGS_GLASS_ID OPENING_SEQ PART_NUM PREFIX_CD ANT_FLAG BLK_SIZE1

26975     DB00201        1          201       DB        Y        14.00

26864     DB00375        1          375       DB        N        16.00

38929     DB00408        1          408       DB        N        12.00

for WHERE GLASS_ID LIKE ‘%DB00%’

Answer 1

SELECT b.* 
FROM yourTable b
INNER JOIN
  (SELECT MIN(VEH_ID) as minV,  GLASS_ID as g
   FROM yourTable
   GROUP BY GLASS_ID) as d
  ON b.Glass_ID = d.g and b.VEH_ID = d.minV
WHERE b.GLASS_ID LIKE  '%DB00%'

NOTE : the WHERE clause, in this case, could be in the subquery from the INNER JOIN also.