Oracle occupies several bytes of a Chinese character

Oracle a Chinese character occupies several bytes. Oracle a Chinese character occupies several bytes. It depends on the character set encoding in Oracle.
View the oracle server Character Set select userenv ('language') from dual. If the following is displayed, a Chinese character occupies two bytes: SIMPLIFIED CHINESE_CHINA.ZHS16GBK. If the following is displayed, A Chinese Character occupies three Bytes: SIMPLIFIED CHINESE_CHINA.AL32UTF8. You can use the following statement to query the length of the byte occupied by a Chinese character: select lengthb ('you') from dual;