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Alex Rivera
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I want to input telephone number in a form, including country code, extension create table if not exists employee( ` country_code_tel int(11), tel_number int(10), extension int(10), mobile bigint(20) ); If tel_number is larger than 15 bit, which datatype can I use, I'd better use Bigint(20) ? create table address( address varchar(255), city varchar(255), country varchar(255), post_code int(11) ); For example, if I have a country code for Canada I can use +2 or 002. Which is better for processing? Thanks for your advice.
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