Create a handle string for the certificate. The database will only be able
to create a handle for certificates that originate from the database. In
cases where the database cannot create a handle for a certificate, NULL
will be returned.
This handle should be stable across various instances of the application,
and between applications. If a certificate is modified in the database,
then it is not guaranteed that this handle will continue to point to it.
Since 2.30
Create a handle string for the certificate. The database will only be able to create a handle for certificates that originate from the database. In cases where the database cannot create a handle for a certificate, NULL will be returned. This handle should be stable across various instances of the application, and between applications. If a certificate is modified in the database, then it is not guaranteed that this handle will continue to point to it. Since 2.30