Long -> lob , to_lob 转换，迁移

create table t1 (
c1 number,
c2 long)
;

create table t2 (
c1 number,
c2 clob)
;

insert into t2 select
c1, to_lob(c2)
from t1 ;

create table t2
as select
c1, to_lob(c2) c2
from t1 ;

[@more@]

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