Removing entries from a table where it's values already exist in the table
问题 I'm starting with this example table (#temp2): | a | b | |---|---| | 2 | 4 | | 2 | 5 | x | 3 | 1 | | 6 | 4 | x | 6 | 5 | | 7 | 5 | x | 7 | 4 | x |---|---| This is a table of transaction keys that I want to be deleted from another existing table. It represents transactions that negate other transactions, where a negates b or vice-versa. So I cannot have a single a negating multiple b or a single b negating multiple a. I have some logic that I thought would do it but there is a problem. With my