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Select only those records that have same multiple values for a particular column if it's existing?

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Below is an example of my pricing_supports table with more than 3 millions rows. There some rows having same values in the first_origin_id, delivery_id fields. If there are records with same first_origin_id, delivery_id but different source, I only want to select those records where source = 0 ID code first_origin_id delivery_id source 1 A 10 20 0 2 B 10 20 1 3 C 11 21 1 4 D 12 22 0 5 E 12 22 1 I would like result like that: ID code first_origin_id delivery_id source 1 A 10 20 0 3 C 11 21 1 4 D 12 22 0 How can I do for good performance?
Asked by Dương Khoa (1 rep)
Sep 20, 2018, 04:24 AM
Last activity: Jan 27, 2025, 05:04 PM