Database is necessary to test proved that take an examination of what, see what kind of book, in the company have the database, now also want to further on, it is necessary to take an examination of a card, seems a little bit high gold content in justification of the database, the great god recommend some books by the way, thank you

CodePudding user response:

1, each database manufacturers have their own certification system, oracle, mainly includes the OCP and OCM;
2 certificate is necessary, that something is better than nothing, because some take project may use these units, and some companies didn't ability appraisal real ability of candidates, will also look at the certificate;
3, the teaching material, you can look at the official textbook, pre-test training should be provided,