Question

从CRS_T_RES_VOUCHER获取IS_OFFLINE_BOOKING为真的所有优惠券和（系统日期 - CRS_T_RES_REGISTRATION。UPDATED_DATE）＆gt;离线取消阈值

离线取消阈值可以从CRS_T_HTL_PARAMETER表中获取。 PARAM_KEY - IBE_OFFLINE_CANCELLATION_THRESHOLD

 SELECT v.VOUCHER_NUMBER
FROM CRS_T_RES_VOUCHER v,
     CRS_T_RES_REGISTRATION regi,
     CRS_T_HTL_PARAMETER para
WHERE v.is_offline_booking = '1'
  AND TRUNC (SYSDATE) - TRUNC (v.updated_date) > para.param_value WHERE para.param_key = 'IBE_OFFLINE_CANCELLATION_THRESHOLD'

我遇到ORA-00933：SQL命令未正确结束

Answer 1

您收到错误的原因是您有两次写入where子句两次。变化：

 where para.param_key = 'IBE_OFFLINE_CANCELLATION_THRESHOLD'

致：

 and para.param_key = 'IBE_OFFLINE_CANCELLATION_THRESHOLD'

根据你的上一条评论，试试这个：

 SELECT v.VOUCHER_NUMBER
 FROM CRS_T_RES_VOUCHER v,
 CRS_T_RES_REGISTRATION regi,
 CRS_T_HTL_PARAMETER para
 WHERE v.is_offline_booking  = '1'
 AND TRUNC (SYSDATE) - TRUNC (v.updated_date) > 
 (select distinct TRUNC(para.param_value) from CRS_T_HTL_PARAMETER
       WHERE para.param_key  = 'IBE_OFFLINE_CANCELLATION_THRESHOLD')

请注意，上述查询仅在没有多个param_values用于＆＃39; IBE_OFFLINE_CANCELLATION_THRESHOLD＆＃39; param key。

Answer 2

我明白了需要处理嵌套查询

 SELECT v.VOUCHER_NUMBER 
 from CRS_T_RES_VOUCHER v, CRS_T_RES_REGISTRATION regi, CRS_T_HTL_PARAMETER para 
 where v.is_offline_booking = '1' and
 TRUNC (SYSDATE) -  TRUNC (v.updated_date) > (select TRUNC (para.param_value) 
 from CRS_T_HTL_PARAMETER para where para.param_key = 'IBE_OFFLINE_CANCELLATION_THRESHOLD')

处理三个表时SQL命令错误ORA-00933

2 个答案: