ORA-00905: 缺少关键字错误 oracle

Question

嗨，当我尝试执行 oracle 查询时，我得到了

[Err] ORA-00905：缺少关键字

CREATE VIEW MJNSXJJRW_view AS  
SELECT B.oID AS "_oid", B.oTm AS "_otm" 
FROM 
(SELECT DISTINCT oID, oTm FROM MJNSXJJRW) B 
LEFT JOIN MJNSXJJRW AS S0 ON 
    B.oID = S0.oID AND 
    S0.idx = 0 AND 
    S0.kID = "str_val" ; 

Answer 1

最可能的问题是MJNSXJJRW AS S0。在定义列别名时使用AS 关键字，而不是在定义表别名时。

CREATE VIEW MJNSXJJRW_view AS  
SELECT B.oID AS "_oid", B.oTm AS "_otm" 
FROM 
(SELECT DISTINCT oID, oTm FROM MJNSXJJRW) B 
LEFT JOIN MJNSXJJRW S0 ON 
    B.oID = S0.oID AND 
    S0.idx = 0 AND 
    S0.kID = "str_val" ; 

我假设 "str_val" 是一列，而不是字符串文字。如果是后者，则应使用单引号。