创建索引

create [bitmap] index [user_schema.]<index_name>

on [user_schema.]<table_name>|<view_name> (列名 ASC|DESC [,...]| func_name(列名))

[reverse]

[cluster[user_schema.]聚簇]

[initrans n]

[maxtrans n]

[pctfree n ]

[storage storage]

[tablespace tablespace]

[no sort]