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更新mysql中的自动增量列+1?

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Can someone please help me, I am trying to create a users like system. Users should be able to click A like button and have it insert the user_id of that profile and auto increment the likes column. I'm also trying to make it so that the next person who comes along and likes the same profile, can also hit like and update the likes auto increment column by one each time.Can someone please help me, I am trying to crea




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