Question

我尝试执行查询并在运行中创建一个新列，其值取决于使用case语句的其他列。请注意，RATE是表中不存在的新列。你能告诉我我哪里错了吗？

SELECT PAY_ATTR1.ID,
       PAY_ATTR1.AMOUNT,
       PAY_ATTR1.TAX,
       ISSYNC = CASE WHEN PAY_ATTR1.AMOUNT != PAY_ATTR2.AMOUNT THEN 'DIFF' ELSE NULL END 
FROM PAY_ATTR1
    INNER JOIN PAY_ATTR2
    ON PAY_ATTR1.ID=PAY_ATTR2.ID

ORA-00923：未找到FROM关键字

Answer 1

SELECT PAY_ATTR1.ID,
       PAY_ATTR1.AMOUNT,
       PAY_ATTR1.TAX,
       CASE WHEN PAY_ATTR1.AMOUNT != PAY_ATTR2.AMOUNT THEN 'DIFF' END as ISSYNC  
FROM PAY_ATTR1
    INNER JOIN PAY_ATTR2
    ON PAY_ATTR1.ID=PAY_ATTR2.ID

Answer 2

SELECT PAY_ATTR1.ID,
       PAY_ATTR1.AMOUNT,
       PAY_ATTR1.TAX,
       CASE WHEN PAY_ATTR1.AMOUNT != PAY_ATTR2.AMOUNT THEN 'DIFF' 
            ELSE NULL 
            END AS ISSYNC
FROM PAY_ATTR1 INNER JOIN PAY_ATTR2 
    ON PAY_ATTR1.ID = PAY_ATTR2.ID

解决了使用ERROR解决的案例语句 - 找不到预期的FROM关键字

2 个答案: