Checking for string in column of SQLite database using python

I want to check for a user input string in a database for a login system then allow the login to happen depending on results.

    def check():
            username = logEntry.get()
            password = passEntry.get()
            curs.execute("SELECT FROM logins WHERE username LIKE (?);", (username))
            curs.execute("SELECT FROM logins WHERE password LIKE (?);", (password))

    logButton = tk.Button(self, text="Login", command=check)
    logButton.place(x=320, y=120)

Here is what I have so far but obviously I am stuck with the check. Can somebody please tell me how to go about doing such a check, I am really stuck.