--去除換行chr(10)
update zhzl_address t set t.add_administration_num=replace(t.add_administration_num,chr(10),‘‘);
--去掉回車chr(13)
update zhzl_address t set t.add_administration_num=replace(t.add_administration_num,chr(13),‘‘);
--去掉空格chr(32)
update zhzl_address t set t.add_administration_num=replace(t.add_administration_num,chr(32),‘‘);
--去掉兩邊空白trim()
update zhzl_address t set t.add_administration_num=trim(t.add_administration_num);
--特殊符號ascii定義
--制表符 chr(9)
--換行符 chr(10)
--回車符 chr(13)
 
附上ASCII碼:

plsql中特殊字符的處理