Abstract: Various examples are directed to systems and methods using a database management system. The database management system may generate a root certificate for a database host of the database management system and a first host certificate using the root certificate. The database management system may receive, from a first client associated with the first tenant, a request to access the root certificate stored at a root certificate storage location and send the root certificate to the first client. The database management system may receive, from the first client, a request to establish a secure communication connection. The secure communication connection with the first client may be established at least in part by providing the first host certificate to the first client.

Abstract: Methods, systems, and computer-readable storage media for executing a first application on a source system during production use of the source system, providing a second application on a target system, during the production use of the source system: migrating data from the source system to the target system based on a catalog delta, and a data delta, each of the catalog delta, and the data delta being periodically determined, and determining whether a completion time exceeds a threshold time, the completion time being determined based on a last-determined data delta, and, in response to determining that the completion time does not exceed the threshold time: halting production use of the source system, and completing migration to the target system based on the last-determined data delta.

Abstract: Methods, systems, and computer-readable storage media for executing a first application on a source system during production use of the source system, providing a second application on a target system, during the production use of the source system: migrating data from the source system to the target system based on a catalog delta, and a data delta, each of the catalog delta, and the data delta being periodically determined, and determining whether a completion time exceeds a threshold time, the completion time being determined based on a last-determined data delta, and, in response to determining that the completion time does not exceed the threshold time: halting production use of the source system, and completing migration to the target system based on the last-determined data delta.