cmd = "SELECT inst.uuid as uuid, inst.name as name, inst.scenario_id as scenario_id, datacenter_id"\
" ,datacenter_tenant_id, s.name as scenario_name,inst.tenant_id as tenant_id" \
" ,inst.description as description, inst.created_at as created_at" \
cmd = "SELECT inst.uuid as uuid, inst.name as name, inst.scenario_id as scenario_id, datacenter_id"\
" ,datacenter_tenant_id, s.name as scenario_name,inst.tenant_id as tenant_id" \
" ,inst.description as description, inst.created_at as created_at" \