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Mirepoix (Ariège)

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Pour les articles homonymes, voir Mirepoix. Mirepoix.mw-parser-output .entete.map{background-image:url("//upload.wikimedia.org/wikipedia/commons/7/7a/Picto_infobox_map.png")} Vue de Mirepoix du clocher de la cathédrale Blason Administration Pays   France Région Occitanie Département Ariège Arrondissement Pamiers Canton Mirepoix (bureau centralisateur) Intercommunalité Pays de Mirepoix (siège) Maire Mandat Nicole Quillien 2014-2020 Code postal 09500 Code commune 09194 Démographie Gentilé Mirapiciens / Mirapiciennes Population municipale 3 162  hab. (2015 ) Densité 67  hab./km 2 Population aire urbaine 54 409  hab. Géographie Coordonnées 43° 05′ 23″ nord, 1° 52′ 28″ est Altitude Min. 276  m Max. 462  m Superficie 47,28  km 2 Localisation Géolocalisation sur la carte : Ariège Mirepoix Géolocalisation sur la carte : ...

select row having one kind of value only while missing other from a pair

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up vote 0 down vote favorite I have to select row which has one kind of value in one row but not the other row, both row having a key entity common Sample model : +------+---------+---------------+ | key | status | arrival_p | +------+---------+---------------+ | k1 | failure | came | | k1 | success | gone | | k2 | failure | came | | k3 | success | came | | k3 | failure | gone | | k4 | success | came | | k5 | success | came | | k2 | success | gone | | k6 | success | gone | +------+---------+---------------+ so in this case, except for k4 and k5 , all have come and gone. how can i find folks who have come but not gone?? k6 has just gone, so its an outlier, good to catch it but not immediate priority. i trie...