Oracle字符函数应用检测汉字的方法

create table test(a varchar2(10));
insert into test values('鸟');
insert into test values('深刻');
insert into test values('aaa');
insert into test values('bbb');
insert into test values('b鸟bb');
SELECT  FROM TEST;

select a, asciistr(a) from test where asciistr(a) like '%\%'; -- 结果是有汉字的
select a ,asciistr(a) from test where asciistr(a) not like '%\%'; -- 结果是不包含汉字的

select a, length(a) , lengthb(a) from TEST where length(a) != lengthb(a) ; --结果是有汉字的