CREATE TABLE "meeus_julian_algorithm" (
  "expression" text,
  "y_2008" text,
  "y_2009" text,
  "y_2010" text,
  "y_2011" text
);

Question: What is the y = 2008 when y = 2011 is a = 3?
SQL: SELECT "y_2008" FROM "meeus_julian_algorithm" WHERE "y_2011"='a = 3';

Question: What is the y = 2011 when the expression is month = floor ((d + e + 114) / 31)?
SQL: SELECT "y_2011" FROM "meeus_julian_algorithm" WHERE "expression"='month = floor ((d + e + 114) / 31)';

Question: What is the y = 2011 when the y = 2010  is 22 march 2010?
SQL: SELECT "y_2011" FROM "meeus_julian_algorithm" WHERE "y_2010"='22 March 2010';

Question: What is the y = 2011 when the y = 2009 is 6 april 2009?
SQL: SELECT "y_2011" FROM "meeus_julian_algorithm" WHERE "y_2009"='6 April 2009';

Question: what is the y = 2008 when the expression is easter day (julian calendar)?
SQL: SELECT "y_2008" FROM "meeus_julian_algorithm" WHERE "expression"='Easter Day (Julian calendar)';

Question: what is  the y = 2009 when the expression is month = floor ((d + e + 114) / 31)?
SQL: SELECT "y_2009" FROM "meeus_julian_algorithm" WHERE "expression"='month = floor ((d + e + 114) / 31)';