SQL SYS.Database table not found

Hi,

I running an SQL so I can find the databases with the largest amount of free space. This is in case I can compact the databases.

However SQL cannot find the SYS.Database table.

Can someone please explain how to fix?

[SQL]TEST:%SYS>>select * from SYS.Database
ERROR #5540: SQLCODE: -30 Message:  Table 'SYS.DATABASE' not found

[SQL]TEST:%SYS>>  << entering multiline statement mode, 'GO' to execute >>
   1>>select DatabaseName, Directory, Size, Free, DiskFreeSpace
   2>>from SYS.Database
   3>>order by DiskFreeSpace DESC
   4>>go
ERROR #5540: SQLCODE: -30 Message:  Table 'SYS.DATABASE' not found

The documentation I'm using is:

https://docs.intersystems.com/irislatest/csp/documatic/%25CSP.Documatic…

This states:

SQL Table Name: SYS.Database

Thanks