If data inquires the requirement cannot use Join in the database, can be only in the program Join, is that still necessary to use Sql database?
fractionation of a service many services, deploy is on different server node, if the database of every service stores when data only, be still necessary to use Sql database? If return useful, does that serve interior to still have Left Join demand namely?
Below this circumstance, if need not Sql database, that can consider documentation database, kv database, the database that list type?
Everybody has done the programmer of tiny service, does every service of your fractionation still use Sql database? If be, why is that used? Does the database inquiry that serves interior still have Left Join demand? Still use a convention with Sql database, do not understand other database? If used other Nosql databases, is what use then which?