mysql - 这个查询有什么问题？

Question

这个查询：

SELECT tbl_deliverable.*, user_to_deliverable.*
where tbl_deliverable.id = user_to_deliverable.d_id 

从 phpmyadmin 返回此错误：

#1064- 您的 SQL 语法有错误；检查与您的 MySQL 服务器版本相对应的手册，以'where tbl_deliverable.id = user_to_deliverable.d_id'在第 1 行附近使用正确的语法

为什么？

Answer 1

你没有FROM条款。

它应该是

SELECT tbl_deliverable.*, user_to_deliverable.* 
FROM tbl_deliverable, user_to_deliverable                -- <== missing
where tbl_deliverable.id = user_to_deliverable.d_id 

或执行 ANSI SQL-92

SELECT tbl_deliverable.*, user_to_deliverable.* 
FROM tbl_deliverable INNER JOIN user_to_deliverable               
         ON tbl_deliverable.id = user_to_deliverable.d_id 

Answer 2

您在 SQL 中忘记了“来自表”：

SELECT tbl_deliverable.*,   user_to_deliverable.*
from   tbl_deliverable,     user_to_deliverable
where  tbl_deliverable.id = user_to_deliverable.d_id

只需添加：

from tbl_deliverable, user_to_deliverable