!(/files/Pasted image 2.png) Note that, under the server you can see existing databases.
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6. Set a name and choose and owner
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By default, you have one set of credentials to access this db - the owner's credentials
Connect to the db using TablePlus:
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How to create new logins for db:
!(Pasted image 6.png) Set name, password, privileges, etc
!(Pasted image 7.png) Use the new username and password to connect to db.