可以的SQL> select * from bb;       BID BNAME
---------- ----------
         1 张zhang
         2 李li
         3 王wang
         4 孙sunSQL> select length(bname),length(lpad(' ',length(bname),' ')),replace(lpad(' ',length(bname),' '),' ','a') from bb;LENGTH(BNAME) LENGTH(LPAD('',LENGTH(BNAME),' REPLACE(LPAD('',LENGTH(BNAME),
------------- ------------------------------ --------------------------------------------------------------------------------
            6                              6 aaaaaa
            4                              4 aaaa
            5                              5 aaaaa
            4                              4 aaaaSQL>