CREATE TABLE table_name_82 (tns_sofres_5_26_09 VARCHAR2, ipsos_5_25_09 VARCHAR2)

Which TNS-Sofres 5/26/09 has an Ipsos 5/25/09 of 1%?
SELECT tns_sofres_5_26_09 FROM table_name_82 WHERE ipsos_5_25_09 = "1%"
SELECT "tns_sofres_5_26_09" FROM "table_name_82" WHERE "1%" = "ipsos_5_25_09"