gr-scan | GNU Radio Signal Scanner | Navigation library
kandi X-RAY | gr-scan Summary
kandi X-RAY | gr-scan Summary
Fast radio spectrum scanner based on SDR and GnuRadio. Tune to frequencies in specified range and tri fing peak in frequency power spectrum. Print frequency and bandwidth of found peaks.
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QUESTION
I have joined some tables together to create category paths for each product (from a demo Opencart installation).
The problem is that some products may belong to two or more categories so the query returns multiple rows for each product.
Because I only need a single row per product i want to discard the rest but I want to keep the row with the highest counter
value.
I have tried several things (like: select max, group by and display other column that's not in group by clause) but none of them works as I get all kinds of errors, such as #1146 - Table 'opencart3.ptc' doesn't exist
.
EDIT: SQL dump (had no luck making it play nice with online sql fiddlers.
...ANSWER
Answered 2019-Nov-16 at 19:09Well, after a week+ of frustration I was finally able to find a solution thanks to https://stackoverflow.com/a/7745635/5256092
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