Answer by wildplasser for How to remove reverse duplicates from a SQL query
SELECT *FROM link lWHERE NOT EXISTS ( SELECT * from link nx -- The condition below is true for both the twins WHERE nx.ip_src = l.ip_dst AND nx.ip_dst = l.ip_src -- this is true for only one of the...
View ArticleAnswer by Gordon Linoff for How to remove reverse duplicates from a SQL query
If you don't care about the ordering in the final result set, you can do:select distinct least(ip_src, ip_dst) as ip_src, greatest(ip_src, ip_dst) as ip_dstfrom link ;Note: this can result in pairs not...
View ArticleHow to remove reverse duplicates from a SQL query
Context:I have a select query where I have have link between devices. Some links have "reverse duplicates" that I would like to get rid of in the select query.I already searched for similar questions...
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