CREATE TABLE artist (Artist_ID VARCHAR2, Artist VARCHAR2)
CREATE TABLE volume (Issue_Date VARCHAR2, Artist_ID VARCHAR2)

What are the issue dates of volumes associated with the artist 'Gorgoroth'?
SELECT T2.Issue_Date FROM artist AS T1 JOIN volume AS T2 ON T1.Artist_ID = T2.Artist_ID WHERE T1.Artist = "Gorgoroth"
SELECT "T2"."Issue_Date" FROM "artist" "T1" JOIN "volume" "T2" ON "T1"."Artist_ID" = "T2"."Artist_ID" WHERE "Gorgoroth" = "T1"."Artist"