oracle内置函数:search DB blob字段显示出来
oracle内置函数:search DB blob字段显示出来
select utl_raw.cast_to_varchar2(dbms_lob.substr(log_data_details)) from JFP_TWGCB_MISLOG where utl_raw.cast_to_varchar2(DBMS_LOB.SUBSTR(log_data_details,2000,1))
这里两个oralce 内置函数
blob 转成字符串:
utl_raw.cast_to_varchar2
blob 截取字符串:
dbms_lob.substr