select session from table_2 group by sessionSELECT DISTINCT session FROM table_2
SELECT id_category FROM prod_cat WHERE id_product=xxSELECT id_product FROM prod_cat WHERE id_category=xxThe Cisco Catalyst 4948 delivers wire-speed throughput with low latency for data-intensive applications, using a 96-Gbps switching fabric with a forwarding rate of 72 million packets per second (mpps) in hardware for Layer 2 to 4 traffic.