如何处理错误"模糊列定义"？

Question

这是我的sql命令:

select INCOME_TYPE_ID,
       REGION_CODE,
       FIN_YEAR_CODE,
       PORTION_AMOUNT
  from INCOME.INCOME_TYPE, 
       COMMON.REGION, 
       INCOME.RECEIVE_DOC_PORTION, 
       INCOME.ASSESS_ORDER_ITEM, 
       ACCOUNTING.VOUCHER_ITEM_RECEIVE_DOC, 
       ACCOUNTING.VOUCHER_ITEM, 
       ACCOUNTING.VOUCHER, 
       ACCOUNTING.FIN_YEAR
 where INCOME.RECEIVE_DOC_PORTION.ASSESS_ORDER_ITEM_ID = INCOME.ASSESS_ORDER_ITEM.ASSESS_ORDER_ITEM_ID
   and INCOME.ASSESS_ORDER_ITEM.INCOME_TYPE_ID=INCOME.INCOME_TYPE.INCOME_TYPE_ID
   and INCOME.RECEIVE_DOC_PORTION.RECEIVE_DOC_PORTION_ID = ACCOUNTING.VOUCHER_ITEM_RECEIVE_DOC.RECEIVE_DOC_PORTION_ID
   and ACCOUNTING.VOUCHER_ITEM_RECEIVE_DOC.VOUCHER_ITEM_ID = ACCOUNTING.VOUCHER_ITEM.VOUCHER_ITEM_ID
   and ACCOUNTING.VOUCHER_ITEM.VOUCHER_ID = ACCOUNTING.VOUCHER.VOUCHER_ID
   and ACCOUNTING.VOUCHER.REGION_CODE = COMMON.REGION.REGION_CODE
   and ACCOUNTING.VOUCHER.FIN_YEAR_CODE = ACCOUNTING.FIN_YEAR.FIN_YEAR_CODE

我收到了这个错误:

模糊列定义

我使用SQL Developer作为Oracle客户端.

Answer 1

显然,您的选择列表中的一个(或多个)列名称存在于FROM列表的多个表中.

你需要在SELECT列表中的每一列前面加上它来自的表(这也是一个好的做法,总是这样做,不管它们是否具有暧昧的事实)