"David G. Johnston" <david.g.johnston@gmail.com> writes:
> On Thursday, August 19, 2021, sivapostgres@yahoo.com <sivapostgres@yahoo.com>
> wrote:
>> Is there any way to make a PG database either in-active or switch to
>> single-user mode ? We want to avoid DELETE database process.
> Probably can do it via changing the pg_hba.conf file.
Either that or revoke public CONNECT privilege on the database.
regards, tom lane