sql - 尝试使用左连接但遇到语法错误，

Question

我正在尝试连接几列，但在开始时遇到语法错误“错误:“id”处或附近的语法错误 ON (E."id"= F."id")"。任何人都可以告诉我我的查询有什么问题吗？

CREATE VIEW "VW_X" AS

SELECT *
FROM (SELECT "id",
    "name"
     FROM "TBL_A") E
LEFT JOIN (SELECT "id"
    "name",
    "school",
    "email",
    FROM "TBL_B") F
ON (E."id" = F."id")

Answer 1

“电子邮件”后有一个额外的逗号，我想这可能就是您收到该错误的原因。您还将在外部选择上有重复项(两个表上都有“id”和“name”)。

我认为您可以用更简单的方式编写查询:

CREATE VIEW "VW_X" AS
SELECT a.id,
       a.name as name_a,
       b.name as name_b,
       b.school,
       b.email
  FROM TBL_A a
  LEFT JOIN TBL_B b
    ON a.id = b.id;