mysql---which type i should use?
when created the field for a table, i don't know which type (int, char,varchar....)and size i should use on the field. eg: email, time, address, phone....and so on. 
mysql---which type i should use?
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when created the field for a table, i don't know which type (int, char,varchar....)and size i should use on the field. eg: email, time, address, phone....and so on. 