Hi Yang,
1. Need I install mysql client on the gateway server before gateway setup? Or does the gateway setup package already contains mysql client to be used?
A. You will have to install mysql client first on the gateway before running setup. The gateway setup does not contain mysql client.
2. Need I create ssg database in mysql server manually before gateway setup? Or the setup script will connect to mysql server to create the ssg database automatically?
A. The ssg database is created by the script. There is no need to create the db manually.