sql - oracle pl/sql ORA-01790 : expression must have same datatype as corresponding expression

Question

SELECT SUM(SALES_AMOUNT)SALES,
YEAR,
MONTH,
CATAGORY_ID,
SALES_PERSON_ID,
ITEM_TYPE_ID
FROM APEX_FINAL
    where sales_amount is not null
     and catagory_id is not null
GROUP BY (YEAR,MONTH,CATAGORY_ID,SALES_PERSON_ID,ITEM_TYPE_ID)

union all

SELECT SUM(SALES_AMOUNT)SALES,
YEAR,
MONTH,
CATAGORY_ID,
'all others' SALES_PERSON_ID,
ITEM_TYPE_ID
FROM APEX_FINAL
    where sales_amount is not null
    and sales_person_id is null 
GROUP BY (YEAR,MONTH,CATAGORY_ID,SALES_PERSON_ID,ITEM_TYPE_ID)

这是我的代码，请帮助我解决我的问题，因为我遇到了错误的数学数据类型，但所有数据类型都相同

Answer 1

销售人员 ID 似乎不匹配。它可能是您表中的 NUMERIC 数据类型。

可能你可以在第一个联合查询中使用 TO_CHAR(SALES_PERSON_ID) ，如下所示。它会帮助你解决问题

SELECT SUM(SALES_AMOUNT)SALES,
YEAR,
MONTH,
CATAGORY_ID,
TO_CHAR(SALES_PERSON_ID) SALES_PERSON_ID,
ITEM_TYPE_ID
FROM APEX_FINAL
    where sales_amount is not null
     and catagory_id is not null
GROUP BY (YEAR,MONTH,CATAGORY_ID,SALES_PERSON_ID,ITEM_TYPE_ID)

union all

SELECT SUM(SALES_AMOUNT)SALES,
YEAR,
MONTH,
CATAGORY_ID,
'all others' SALES_PERSON_ID,
ITEM_TYPE_ID
FROM APEX_FINAL
    where sales_amount is not null
    and sales_person_id is null 
GROUP BY (YEAR,MONTH,CATAGORY_ID,SALES_PERSON_ID,ITEM_TYPE_ID)