CREATE TABLE table_name_82 (videoconferencing VARCHAR2, data_conferencing VARCHAR2, web_conferencing VARCHAR2)

What is Videoconferencing, when Data Conferencing is 'No', and when Web Conferencing is 'No'?
SELECT videoconferencing FROM table_name_82 WHERE data_conferencing = "no" AND web_conferencing = "no"
SELECT "videoconferencing" FROM "table_name_82" WHERE "data_conferencing" = "no" AND "no" = "web_conferencing"