CREATE TABLE "radio_singles" (
  "single" text,
  "ccm_chart" text,
  "debut" text,
  "peak_date" text,
  "peak_pos" real,
  "total_wks" real,
  "spins_since_1998_source_mediabase" real
);

Question: How many Spins sources have a CCM Chart of CHR with a peak position less than 1?
SQL: SELECT COUNT("spins_since_1998_source_mediabase") FROM "radio_singles" WHERE "ccm_chart"='chr' AND "peak_pos"<1;

Question: What CCM Chart had 18 total weeks?
SQL: SELECT "ccm_chart" FROM "radio_singles" WHERE "total_wks"=18;