Sqlite Error: file is not a database

Question

I have created a database named database.db

When I create a table in the database I get the error:Error: file is not a database

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Answer 1

Create database without the .db extension.
for e.g. sqlite3 users //this creates a database names users

Answer 2

You can also use

.open users

it will also create the database

and to open an existing database users.db use

.open users.db

if .db is not used new database of same name will be created