CREATE TABLE table_63642 ("Model number" CLOB, "sSpec number" CLOB, "Frequency" CLOB, "Turbo" CLOB, "Cores" FLOAT, "L2 cache" CLOB, "L3 cache" CLOB, "I/O bus" CLOB, "Mult." CLOB, "Memory" CLOB, "Voltage" CLOB, "Socket" CLOB, "Release date" CLOB, "Part number ( s ) " CLOB, "Release price  (  USD  ) " CLOB)

What's the release date of model number CORE I7-940?
SELECT "Release date" FROM table_63642 WHERE "Model number" = 'core i7-940'
SELECT "Release date" FROM "table_63642" WHERE "Model number" = 'core i7-940'