I have a question regarding performance of certain datatypes:

I have a field where I will store my clients phone numbers. I know that this field will never exceed 15 characters, and I will store only numbers here (no dashes, dots, etc...), so I was wondering:

Wich type is faster: NUMERIC(15,0) or VARCHAR(15)? Are there any storage differences between them?

Er Galvão Abbott
Desenvolvedor Web

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