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For every value (column a) return * where column b is maximum

I have 4 columns a ,b ,c, d

sample data

a | b | c | d |

1 | 1 | 101 | 0
2 | 1 | 101 | 0
3 | 1 | 101 | 1
4 | 1 | 102 | 0
5 | 1 | 102 | 0
1 | 2 | 101 | 0
2 | 2 | 101 | 1

Write a SQL command such that it should return those rows where for every value of c in b, return rows with maximum a

i.e
Expect output

a | b | c | d |

3 | 1 | 101 | 1
5 | 1 | 102 | 0
2 | 2 | 101 | 1
Jul 11 '20 #1
1 2949
Banfa
9,065 Expert Mod 8TB
And what have you already tried?
Jul 12 '20 #2

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