CREATE TABLE table_203_273 (id NUMBER, "name" CLOB, "japanese" CLOB, "distance\ ( km ) " NUMBER, "connections" CLOB, "location" CLOB)

name only the stations that have connections to other lines .
SELECT "name" FROM table_203_273 WHERE NOT "connections" IS NULL
SELECT "name" FROM "table_203_273" WHERE NOT "connections" IS NULL