oracle删除字段中的空格、回车及指定字符

分手后的思念是犯贱 2022-06-16 03:27 159阅读 0赞

![复制代码][copycode.gif]

create or replace procedure PROC_test is
      --Description:删除字段中的指定字符(回车chr（13）、换行chr（10）)
      --By LiChao
      --Date:2016-03-01
    
      colname varchar(20); --列名
      cnt     number; --包含换行符的列的行数
      v_sql   varchar(2000); --动态SQL变量
    begin
      --读取表中的列
      for col in (select column_name
                    from user_tab_columns
                   where table_name = 'TEMP') loop
        colname := col.column_name;
       --替换换行符chr(10)
        v_sql := 'select count(1)  from temp  where instr(' || colname ||
                 ',chr(10))>0 ';
        EXECUTE IMMEDIATE V_SQL
          into cnt;
        if cnt > 0 then
          v_sql := 'update temp set ' || colname || '=trim(replace(' || colname ||
                   ',chr(10),''''))' || 'where instr(' || colname ||
                   ',chr(10))>0 ';
          EXECUTE IMMEDIATE V_SQL;
          commit;
        end if;
       --替换回车符chr(13)
        v_sql := 'select count(1)  from temp  where instr(' || colname ||
                 ',chr(13))>0 ';
        EXECUTE IMMEDIATE V_SQL
          into cnt;
        if cnt > 0 then
          v_sql := 'update temp set ' || colname || '=trim(replace(' || colname ||
                   ',chr(13),''''))' || 'where instr(' || colname ||
                   ',chr(13))>0  ';
          EXECUTE IMMEDIATE V_SQL;
          commit;
        
        end if;
        --替换'|' chr(124) 为'*' chr（42）
        v_sql := 'select count(1)  from temp  where instr(' || colname ||
                 ',chr(124))>0 ';
        EXECUTE IMMEDIATE V_SQL
          into cnt;
        if cnt > 0 then
          v_sql := 'update temp set ' || colname || '=replace(' || colname ||
                   ',chr(124),chr(42))' || 'where instr(' || colname ||
                   ',chr(124))>0  ';
          EXECUTE IMMEDIATE V_SQL;
          commit;
        
        end if;
      end loop;
    
    end PROC_test;
    /

![复制代码][copycode.gif]

[copycode.gif]: /images/20220616/0c2ba6b8488545cc83e4600ef18add94.png