如何根据MYSQL中的project-id从表中获取所有记录

Question

people_table

 id project_id comp_id  people_name
    1   13         1        john
    2   16         2        rob
    3   18         1        jack
    4   18         2        lee

company_table

 id project_id comp_name
    1   21         axn
    2   13         ibm 
    3   15         anz

Answer 1

你需要这个：

SELECT A.*,B.* 
FROM people_table as A 
INNER JOIN company_table as B 
ON A.project_id = B.project_id

你应该查看sqlfiddle：

的 http://sqlfiddle.com/#!2/4ecd2/1 的

Answer 2

尝试使用INNER JOIN

SELECT P.*,C.* 
FROM people_table P 
INNER JOIN company_table C ON P.project_id = C.project_id
WHERE P.project_id = $your_project_id;

Answer 3

请尝试以下。

select * from people_table p,company_table c where p.projectID=c.projectID

这会显示project_ID列两次。因此，您可以使用distinct关键字来获取一个项目ID列。