oracle全局搜索敏感词

DECLARE
  v_sql VARCHAR2(4000);
  v_tb_column VARCHAR2(4000);
  v_cnt NUMBER(18,0);
  cursor cur is SELECT 'SELECT '''||'"'||t1.table_name||'"."'||t1.Column_Name||'"'||''''||' as col_name, NVL(COUNT(t."'||t1.Column_Name||'"),0) as cnt FROM "'||
         t1.table_name||'" t WHERE t."'||t1.column_name||'" like ''%敏感词%''' AS str
    FROM cols t1 left join user_col_comments t2
      on t1.Table_name=t2.Table_name and t1.Column_Name=t2.Column_Name
    left join user_tab_comments t3 
      on t1.Table_name=t3.Table_name 
   WHERE NOT EXISTS ( SELECT t4.Object_Name FROM User_objects t4
               WHERE t4.Object_Type='TABLE' 
                 AND t4.Temporary='Y' 
                 AND t4.Object_Name=t1.Table_Name )
     AND (t1.Data_Type='CHAR' or t1.Data_Type='VARCHAR2' or t1.Data_Type='VARCHAR')
   ORDER BY t1.Table_Name, t1.Column_ID;
 
BEGIN
  FOR i IN cur LOOP
    v_sql := i.str; 
    EXECUTE IMMEDIATE v_sql INTO v_tb_COLUMN, v_cnt;
    IF v_cnt > 0 THEN
      dbms_output.put_line('表：'||substr(v_tb_column,1,instr(v_tb_column,'.',1,1)-1)||' 列：'||substr(v_tb_column,instr(v_tb_column,'.',1,1)+1)||
                           '有 '||to_char(v_cnt)|| '条记录含有字串"敏感词" ');
    END IF;
  END LOOP;
EXCEPTION WHEN OTHERS THEN
BEGIN
  dbms_output.put_line(v_sql);
  dbms_output.put_line(v_tb_column);
END;
END;