Explain the specific name, advantages and characteristics of a periodical database, and its benefits to users and disciplines. I suppose you are in a university, and you'd better ask the subject experts in your school to make an authoritative evaluation of the database you want to recommend. The more people do expert evaluation, the better. Of course, you must have an academic identity, sign and seal it, and send it to the person in charge of resource procurement in the library. This is more formal and will attract the attention of library buyers, but the purchase of databases is not so easy to achieve, especially periodicals, which need continuous funding. Every budget of the library has a clear purpose. If it is to be included in the procurement plan, it may be necessary to organize expert argumentation. If the argument passes, it depends on whether the budget application can pass. This process is very long and cannot be completed in a year or two. If you need it urgently, you can ask the relevant teachers in the library to apply for a trial, which will come faster.

The situation in each library is different. You'd better consult your library and open the library website. You can usually find the phone number.