oracle 替换clob里面的某个特定的字符串
第一步:判断clob里面是有包含某个特定的字符串:假如是说“/admin/ewebeditor/uploadfile/“
关键字:dbms_lob.instr
Code:
select id, content from table_name where dbms_lob.instr(content,'/admin/ewebeditor/uploadfile/') > 0;
第二步:用replace先替换下看是否是自己想要的结果
关键字:replace
Code:
select id, replace(st.content,'/admin/ewebeditor/uploadfile/','E:/resource/images/uploadfile/') from table_name where id = 553 and dbms_lob.instr(content,'/admin/ewebeditor/uploadfile/') > 0;
第三步:替换,前面的两步ok,肯定错不了的
关键字:update set
Code:
update table_name set content = replace(content,'/admin/ewebeditor/uploadfile/','E:/resource/images/uploadfile/') where id = 553 and dbms_lob.instr(content,'/admin/ewebeditor/uploadfile/') > 0;