Question

我想将case语句用于下面的列

SELECT   sr_no, TYPE, stage, party_name, amount, remarks, exp_type, exp_id,
     voucher_no, cheque_no, cheque_dt, chq_favr_name, attachment,
      CASE NVL (amount, 0) = 0 THEN checkVal = 0
      ELSE
      checkVal = 1
FROM xxcus.xxacl_pn_expense_info
 WHERE mkey = '354'
 AND ((NVL (amount, 0) <> 0) OR (party_name IS NOT NULL))          
ORDER BY sr_no

但我收到错误

ORA-00923：未找到FROM关键字

Answer 1

SELECT   sr_no, TYPE, stage, party_name, amount, remarks, exp_type, exp_id,
     voucher_no, cheque_no, cheque_dt, chq_favr_name, attachment,
      CASE WHEN NVL(amount, 0) = 0 THEN 0 ELSE 1 END AS checkVal
FROM xxcus.xxacl_pn_expense_info
 WHERE mkey = '354'
 AND ((NVL (amount, 0) <> 0) OR (party_name IS NOT NULL))          
ORDER BY sr_no

Answer 2

你错过了一个END

SELECT   sr_no, TYPE, stage, party_name, amount, remarks, exp_type, exp_id,
     voucher_no, cheque_no, cheque_dt, chq_favr_name, attachment,
      CASE WHEN NVL (amount, 0) = 0 THEN checkVal = 0
      ELSE
      checkVal = 1
      END
FROM xxcus.xxacl_pn_expense_info
 WHERE mkey = '354'
 AND ((NVL (amount, 0) <> 0) OR (party_name IS NOT NULL))          
ORDER BY sr_no

Oracle案例陈述不起作用

2 个答案: