Get current instance URL in APEX using SQL or JS

If you need to retrieve the current APEX server URL using SQL, there are 3 different functions that can help with that.

For example, if my current page is:
https://example.oracle.com/ords/r/myworkspace/myapp/mypage?session=12345

APEX_PAGE.GET_URL:

SELECT APEX_PAGE.GET_URL FROM DUAL;
SQL> /ords/r/myworkspace/myapp/mypage?session=12345

APEX_UTIL.HOST_URL:

SELECT APEX_UTIL.HOST_URL FROM DUAL;
SQL> https://example.oracle.com

APEX_MAIL.GET_INSTANCE_URL:

SELECT APEX_MAIL.GET_INSTANCE_URL FROM DUAL;
SQL> https://example.oracle.com/ords/r/myworkspace/myapp/

If you want to get this from Javascript, you can simply use the "windows.location" method:

window.location.host: "example.oracle.com"
window.location.hostname: "example.oracle.com"
window.location.href: "https://example.oracle.com/ords/r/myworkspace/myapp/mypage?session=12345"
window.location.origin: "https://example.oracle.com"
window.location.pathname: "/ords/r/myworkspace/myapp/mypage"
window.location.port: ""

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