使用函数 :
Utl_Raw.Cast_To_Varchar2()
例如:
select Utl_Raw.Cast_To_Varchar2(t.content) from tb_message t
如果报错:
需要修改sql为:
select utl_raw.cast_to_varchar2(dbms_lob.substr(t.content,2000,1))
from tb_message t
使用函数 :
Utl_Raw.Cast_To_Varchar2()
例如:
select Utl_Raw.Cast_To_Varchar2(t.content) from tb_message t
如果报错:
需要修改sql为:
select utl_raw.cast_to_varchar2(dbms_lob.substr(t.content,2000,1))
from tb_message t
本文标题:oracle查看blob字段
本文链接:https://www.haomeiwen.com/subject/eezlyctx.html
网友评论