How many databases should be used?

Question

Typically at least three databases are used for a systematic review. A list of most commonly used databases appears on this page, but there may be others to consider depending upon the topic. When conducting a systematic review, a thorough search strategy is necessary.

Should I have multiple databases?

Try to avoid multiple databases or tables with the same design or purpose. Multiple database apps are usually apps which have their own data requirements but also have to integrate with another existing app or service's database.

Why should multiple databases be used?

In summary, systematic reviews use scientific methods to summarize results from multiple research studies. A combination of multiple databases would yield more articles than Medline alone, which can help us to make accurate decisions.

Can you have multiple databases?

Multiple database technologies can be used with monolithic applications, and can even seem more natural in a microservices environment, where each service would have its own database.

Can you do a systematic review with one database?

Nevertheless others have concluded that a single database is not sufficient to retrieve all references for systematic reviews [18, 19]. Most articles on this topic draw their conclusions based on the coverage of databases [14].

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