Oracle 11g。内联合。表/视图不存在

Question

试着教自己一些基础知识。我一直在尝试运行基本的内连接时不会出现错误表/视图

SELECT c.cus_code, c.cus_lname, c.cus_fname, i.inv_number
FROM customer c,
INNER JOIN invoice i
ON i.cus_code = c.cus_code;


--ORA-00942: table or view does not exist
00942. 00000 -  "table or view does not exist"
*Cause:    
*Action:
Error at Line: 3 Column: 11-

Answer 1

错误是由customer c后的逗号引起的。它应该是：

SELECT c.cus_code, c.cus_lname, c.cus_fname, i.inv_number
FROM customer c
INNER JOIN invoice i
ON i.cus_code = c.cus_code