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Comment utiliser le langage MySQL pour les appareils de ligne et de ligne?
2022-07-01 16:07:00 【Questions et réponses du rseoc】
Voici les données originales de ma base de données,Toutes les provinces chinoises au fil des ansGDPValeur totale.
Je veux convertir les lignes de données de la base de données,Comme dans la photo ci - dessous
Excusez - moi.SQLC'est la langue.？
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