update table_wonder set tempcolumn = dbms_lob.substr(clobcolumn,4000);
//追加列
update cms_info_relation r set r.info_content_test= info_content_test||'.doc' where info_id in(select i.info_id from cms_info i where i.info_type=4);
update table_wonder set tempcolumn = dbms_lob.substr(clobcolumn,4000);
//追加列
update cms_info_relation r set r.info_content_test= info_content_test||'.doc' where info_id in(select i.info_id from cms_info i where i.info_type=4);