Oracle中，SQL语句【select *from TAB_TEST where billcode in （’0001’，’0002’，...）】最大允许查询的单号个数是？（）

A.1000
B.10000
C.99.99
D.9999

A.create table TAB_TEST ......
B.create table test.TAB_TEST ......
C.create table "Tab_Test"......
D.create table ’TAB_TEST’......

A.select *from TAB_BARSCAN t where t.billcode=’1234’
B.select *from TAB_BarScan t where t.billcode=’1234’
C.select *from tab_barscan t where t.billcode=’1234’
D.select *from barscan t where t.billcode=’1234’