我的SQL SELECT查询有什么问题？

Question

我正在尝试从表a获取所有信息，但收到错误：

  

ORA-00904：“A”：标识符无效。

这是我的疑问：

SELECT a
FROM FORMS a,
     APPLICATIONS b
WHERE b.APPLICATION_ID = a.APPLICATION_ID
  AND a.APPLICATION_ID = 14980

有什么问题？

Answer 1

SELECT a.* 
FROM FORMS a, APPLICATIONS b 
WHERE b.APPLICATION_ID = a.APPLICATION_ID AND a.APPLICATION_ID = 14980;

最好使用新语法：

SELECT a.*
FROM FORMS a JOIN APPLICATIONS b ON b.APPLICATION_ID = a.APPLICATION_ID 
WHERE a.APPLICATION_ID = 14980;