Unbale to find package postgresql-implementation

I am trying to install the following package - postgresql-16-150600.17.3.2.noarch.rpm on my SLES15 SP6 server. Since the server has no internet access I am trying with rpm command for this
when I run - rpm -ivh --force postgresql-16-150600.17.3.2.noarch.rpm , I get error
error: Failed dependencies:
postgresql-implementation is needed by postgresql-16-150600.17.3.2.noarch
when I search for postgresql-implementation i am unable to find it anywhere. can you please direct, from where I can download?

@hundikamath you likely need libpq5 postgresql postgresql16 likewise postgresql-implementation should be provided by postgresql16.

Suggest you use zypper to install, not rpm…