SQL语句， 以下语句会导致全表扫描的是____
Aselect id from t where substring(name,1,3) =‘abc‘
Bselect id from t where name like ‘cif%‘
Cselect id from table_1 where num=10
Dselect id from t where createdate>=‘2005- 11-30‘ and createdate
Aselect id from t where substring(name,1,3) =‘abc‘
Bselect id from t where name like ‘cif%‘
Cselect id from table_1 where num=10
Dselect id from t where createdate>=‘2005- 11-30‘ and createdate