CREATE TABLE membership_register_branch (member_id NUMBER, branch_id CLOB, register_year CLOB)
CREATE TABLE member (member_id NUMBER, card_number CLOB, name CLOB, hometown CLOB, level NUMBER)
CREATE TABLE purchase (member_id NUMBER, branch_id CLOB, year CLOB, total_pounds NUMBER)
CREATE TABLE branch (branch_id NUMBER, name CLOB, open_year CLOB, address_road CLOB, city CLOB, membership_amount CLOB)

What is the name and opening year for the branch that registered the most members in 2016?
SELECT T2.name, T2.open_year FROM membership_register_branch AS T1 JOIN branch AS T2 ON T1.branch_id = T2.branch_id WHERE T1.register_year = 2016 GROUP BY T2.branch_id ORDER BY COUNT(*) DESC LIMIT 1
SELECT "T2"."name", "T2"."open_year" FROM "membership_register_branch" "T1" JOIN "branch" "T2" ON "T1"."branch_id" = "T2"."branch_id" WHERE "T1"."register_year" = 2016 GROUP BY "T2"."branch_id" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY