如何通过替换其他表中两个字段的值来从表中选择所有记录？

Question

This is the table design of an application I need to build. Kindly ignore the Role Table in the image.

Is there any method by which I can select all the records in the table transfer log , but instead of showing "User No" and "Plant No" in the result , I need to show the corresponding Employee No/Username from the user table and corresponding Plant Id from Plant Table.

Answer 1

Try this;)

select distinct
    log.LogNo, u.EmployeeNo/Username, p.PlantId, log.StartDate, log.EndDate, log.Active
from TransferLog log
left join UserTable u on u.UserNo = log.UserNo
left join PlantTable p on p.PlantNo = log.PlantNo

Answer 2

Use inner join

select a.*, b.username, c.pantname
from transfer_log as a 
inner join User as b a.userno = b.userno
inner join plant as c a.plantno = c.plantno