postgreのDB作成方法

# まずはpostgreのパスを通す
$ export PATH=/usr/local/opt/postgresql/bin:$PATH

$ source ~/.zshrc
$ createdb sql_app_fastapi
$ psql -l
 rakukan_test                       | masahirookubo | UTF8     | C       | C     |
 regulationcloud_development        | masahirookubo | UTF8     | C       | C     |
 regulationcloud_test               | masahirookubo | UTF8     | C       | C     |
 sql_app_fastapi                    | masahirookubo | UTF8     | C       | C     |