CREATE TABLE "release_history" (
  "region" text,
  "date" text,
  "label" text,
  "format" text,
  "catalog" text
);

Question: What date has 0-6700-30838-2-9 for a catalog?
SQL: SELECT "date" FROM "release_history" WHERE "catalog"='0-6700-30838-2-9';

Question: What's the date in the United Kingdom having a catalog of reveal50cd/lp?
SQL: SELECT "date" FROM "release_history" WHERE "catalog"='reveal50cd/lp' AND "region"='united kingdom';