CREATE TABLE journal_committee (Editor_ID NUMBER, Journal_ID NUMBER, Work_Type CLOB)
CREATE TABLE editor (Editor_ID NUMBER, Name CLOB, Age FLOAT)
CREATE TABLE journal (Journal_ID NUMBER, Date CLOB, Theme CLOB, Sales NUMBER)

Show the number of the names of editors that are on the committee of journals with sales bigger than 3000.
SELECT Name, COUNT(Name) FROM journal_committee AS T1 JOIN editor AS T2 ON T1.Editor_ID = T2.Editor_ID JOIN journal AS T3 ON T1.Journal_ID = T3.Journal_ID WHERE T3.Sales > 3000 GROUP BY Name
SELECT "Name", COUNT("Name") FROM "journal_committee" "T1" JOIN "editor" "T2" ON "T1"."Editor_ID" = "T2"."Editor_ID" JOIN "journal" "T3" ON "T1"."Journal_ID" = "T3"."Journal_ID" AND "T3"."Sales" > 3000 GROUP BY "Name"