CREATE TABLE "table1_23927423_4" (
  "season" text,
  "name" text,
  "teams" real,
  "relegated_to_league" text,
  "promoted_to_league" text,
  "promoted_from_league" text,
  "relegated_from_league" text
);

Question: How many seasons did Barking Birmingham & Solihull Stourbridge were relegated from league?
SQL: SELECT COUNT("season") FROM "table1_23927423_4" WHERE "relegated_from_league"='Barking Birmingham & Solihull Stourbridge';

Question: Who was relegated to league if Barking Birmingham & Solihull Stourbridge were relegated from league?
SQL: SELECT "relegated_to_league" FROM "table1_23927423_4" WHERE "relegated_from_league"='Barking Birmingham & Solihull Stourbridge';

Question: How many were the minimum team that participated in the league?
SQL: SELECT MIN("teams") FROM "table1_23927423_4";

Question: How many teams participated (maximum) when Cornish All Blacks Pertemps Bees were relegated to the league?
SQL: SELECT MAX("teams") FROM "table1_23927423_4" WHERE "relegated_to_league"='Cornish All Blacks Pertemps Bees';

Question: Who was promoted to the league when Coventry was relegated to the league?
SQL: SELECT "promoted_to_league" FROM "table1_23927423_4" WHERE "relegated_to_league"='Coventry';

Question: How many were promoted from the league when Esher was relegated to the league?
SQL: SELECT COUNT("promoted_from_league") FROM "table1_23927423_4" WHERE "relegated_to_league"='Esher';