Question

我在此查询中得到缺少右括号的错误。我在这里缺少什么，我看到5个左括号和5个右括号。我想做的是仅返回具有最新日期的行。

WITH snCTE AS 
(
   SELECT
    T1.column1
    ,T1.column2
    ,T2.column3
    ,T2.column4
    ,T1.datefield
    ,ROW_NUMBER() OVER (PARTITION BY column1 ORDER BY datefield DESC) AS RN
    FROM dBtable1 T1
    LEFT OUTER JOIN dBtable2 T2 ON (T1.columnid=T2.columnid AND T1.otherfield=T2.otherfield)
    WHERE EXISTS (SELECT 1 FROM dbtable3 AS T3 WHERE T3.column1 = T1.column1)
)

SELECT column1, column2, column3, column4, datefield
FROM snCTE
WHERE snCTE.RN = 1

Answer 1

该错误消息具有误导性；真正的问题是Oracle在表别名中不支持AS，而仅支持列，因此

FROM dbtable3 AS T3

应编辑为

FROM dbtable3 T3

例如：

SQL> select 1 as ONE from dual;

       ONE
----------
         1

SQL> select 1 as ONE from dual D;

       ONE
----------
         1

SQL> select 1 as ONE from dual as D;
select 1 as ONE from dual as D
                             *
ERROR at line 1:
ORA-00933: SQL command not properly ended

Answer 2

错误ORA-00907的来源是在AS中使用FROM dbtable3 AS T3，因为在Oracle DB中不允许使用AS对表或子查询进行别名。

因此，只需删除该AS关键字即可。

ORA-00907：缺少右括号，但是我有匹配的对

2 个答案: