CREATE TABLE "ca_or_11th_emergency_flotilla" (
  "name" text,
  "pennant" text,
  "builder" text,
  "laid_down" text,
  "launched" text,
  "commissioned" text
);

Question: when was the destroyer launched when it was laid down on 14 august 1942?
SQL: SELECT "launched" FROM "ca_or_11th_emergency_flotilla" WHERE "laid_down"='14 august 1942';

Question: what is the launched date when the builder is john brown, clydebank?
SQL: SELECT "launched" FROM "ca_or_11th_emergency_flotilla" WHERE "builder"='john brown, clydebank';

Question: what is the pennant when the builder is yarrow, scotstoun?
SQL: SELECT "pennant" FROM "ca_or_11th_emergency_flotilla" WHERE "builder"='yarrow, scotstoun';

Question: what is the name when the laid down is 28 february 1943?
SQL: SELECT "name" FROM "ca_or_11th_emergency_flotilla" WHERE "laid_down"='28 february 1943';

Question: when was it commissioned when the destroyer was built by scotts, greenock?
SQL: SELECT "commissioned" FROM "ca_or_11th_emergency_flotilla" WHERE "builder"='scotts, greenock';

Question: when was the launched date when the laid down date is 14 august 1942?
SQL: SELECT "launched" FROM "ca_or_11th_emergency_flotilla" WHERE "laid_down"='14 august 1942';