long---clob转化

1、long--long 只能在server下进行

copy from scott/tiger@lsj to lsj/lsj@sunserve create dept using select * from dept;

2、long-clob 不用多说

 

3、clob-clob 省略

 

4、clob---long  只限于32767字节

 

SQL>  declare
  2  my_char varchar2(32767);
  3  begin
  4   for x in (select aa.id,aa.interior_id,aa.remark from tssa.histrans_schedul_info aa where id=390)loop
  5  my_char := dbms_lob.substr(x.remark,32767, 1);
  6   insert into trans_schedul_info (id,interior_id, remark) values (x.id,x.interior_id,my_char);
  7  end loop;
  8  end;
  9  /
 
PL/SQL procedure successfully completed
 
SQL> commit;
 
Commit complete