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Editorial Team
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Asked: 2026-05-23T08:14:36+00:00

I need to find value in b_id which repeats for maximum time. for example

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I need to find value in b_id which repeats for maximum time. for example query for the table below should return 40 (n.b., query should return a single value)

| b_id | s_id | doi        | dos        | charge |
+------+------+------------+------------+--------+
|   10 |    3 | 0000-00-00 | 0000-00-00 |    200 |
|   10 |    2 | 0000-00-00 | 0000-00-00 |    200 |
|   20 |    1 | 0000-00-00 | 0000-00-00 |    200 |
|   30 |    2 | 0000-00-00 | 0000-00-00 |    200 |
|   40 |    4 | 0000-00-00 | 0000-00-00 |    200 |
|   40 |    5 | 0000-00-00 | 0000-00-00 |    200 |
|   70 |    5 | 0000-00-00 | 0000-00-00 |    200 |
|   40 |    4 | 0000-00-00 | 0000-00-00 |    200 |
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1 Answer

  1. Editorial Team
    SELECT TOP 1 COUNT(*) as total FROM dbo.Table GROUP BY b_id ORDER BY total DESC

    edit:
    ups, mysql equivalent:

    SELECT COUNT(*) as total FROM dbo.Table GROUP BY b_id ORDER BY total DESC LIMIT 1

    edit2:
    after the comment:

    SELECT b_id FROM dbo.Table GROUP BY b_id ORDER BY COUNT(b_id) DESC LIMIT 1
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