与UNION结合WITH语句

Question

我有以下查询，我想要输出 一行用分隔符 | 分隔我的数据：

WITH X AS (
    SELECT 'WLT_CUSTOMER' AS TABLE_NAME_STAGING_AREA, 
        COUNT(*) as TOTAL_WLT_CUSTOMERS 
    FROM WLT_CUSTOMER 
    where WLT_DATE = (SELECT SCHEDULED_DATE FROM BANK_PARAMETERS)
    UNION ALL
    SELECT 'CUSTOMER' AS TABLE_NAME_PRODUCTION_DATABASE,
        COUNT(*) as TOTAL_CUSTOMERS 
    FROM CUSTOMER 
    where CUST_ID <> 0
)
SELECT X.TABLE_NAME_STAGING_AREA
        || '|'
        || X.TOTAL_WLT_CUSTOMERS 
        || '|'
        || X.TABLE_NAME_PRODUCTION_DATABASE
        || '|'
        || X.TOTAL_CUSTOMERS 
FROM X 

它给我错误ORA-00904：“ X”。“ TOTAL_CUSTOMERS”：无效的标识符。

预期输出应该是这样的： WLT_CUSTOMER | 10 |客户| 30

有什么想法吗？ 预先感谢！

Answer 1

    select 'WLT_CUSTOMER'||'|'||(
    select COUNT(*) as TOTAL_WLT_CUSTOMERS 
    FROM WLT_CUSTOMER 
    where WLT_DATE = (SELECT SCHEDULED_DATE FROM BANK_PARAMETERS))
    ||'|'||'CUSTOMER'||'|'||
    (select  COUNT(*) as TOTAL_CUSTOMERS 
    FROM CUSTOMER 
    where CUST_ID <> 0) from dual;