How to find out if a db exists?

N

Neonoviiwolf2020-05-02 03:51:57

Android

Neonoviiwolf, 2020-05-02 03:51:57

Kind
When you start the application, you need to check if the database exists, if not, then show the download window and load the database. What query can be used to find out the existence of a database?

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