sql - How to show records were 3 fields match -


i'm trying write query list columns in table when 3 specific fields same, unknown:

table:

field 1  |   field 2    |  field 3   |   field 4 ---------|--------------|------------|---------------   1      |   01-01-15   |    21      |     150   1      |   01-01-15   |    24      |      12   1      |   02-01-15   |    21      |     681   1      |   01-01-15   |    21      |     299

desired results:

    field 1  |   field 2    |  field 3    |   field 4 -------------|--------------|-------------|------------       1      |   01-01-15   |    21       |     150       1      |   01-01-15   |    21       |     299

sorry - still newb here! in advance!

count number of rows same combination , filter count > 1:

select * tab qualify     count(*)     on (partition field1, field2, field3) > 1

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