select * from v$reserved_words order by keyword 关键字 A ALL, ALTER, AND, ANY, AS, ASC, AT B BEGIN, BETWEEN, BY C CASE, CHECK, CLUSTERS, CLUSTER, COLAUTH, COLUMNS, COMPRESS, CONNECT, CRASH, CREATE, CURSOR D DECLARE, DEFAULT, DESC, DISTINCT, DROP E ELSE, END, EXCEPTION, EXCLUSIVE F FETCH, FO ...