Mysql put data in a field in a lot or split into multiple lines for?

CodePudding user response:

Each have advantages and disadvantages, want to consider, according to their own business too much field will make the data redundancy, each row will repeat display some unnecessary data, specification, does not comply with the paradigm and vice table share is too fine, associated query cost is higher, so it is best to design according to the business needs.

CodePudding user response:

Key to see your requirements, how to do,