在Oracle数据库全部表中搜索特定的敏感词 。
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; -- 获取将要执行的SQL语句；
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;
