原來sql可以這樣寫-記錄下

 

Oralce中：

SELECT 'select ' || fields_ora || ' from ' || table_name || ' where ' || CASE
         WHEN cri_add_ora IS NULL THEN
          '1 = 1'
         ELSE
          to_char(cri_add_ora)
       END AS sql1,
       'select count(*) from (select ' || fields || ' from ' || table_name ||
       ' where ' || CASE
         WHEN cri_add_ora IS NULL THEN
          '1 = 1'
         ELSE
          to_char(cri_add_ora)
       END AS sql2,
       fields_ora as fields
  FROM generalsel_head
 WHERE prog_code = 'sysLeftColumn'
   AND rownum < 2
 

Note：

oracle中不能同時刪除多張表的數據