Question

我有一个tblEmployeeProfile＆amp;一个tblPersonnel。 tblPersonnel是一个HR表，由公司的所有员工组成; tblEmployeeProfile包含有关员工职位的详细信息。

tblPersonnel.PersonnelID
tblPersonnel.FirstName
tblPersonnel.MiddleName
tblPersonnel.LastName
tblPersonnel.PhoneNumber
tblPersonnel.Email

tblEmployeeProfile.EmployeeID
tblEmployeeProfile.ManagerID
tblEmployeeProfile.DepartmentID
tblEmployeeProfile.JobCategoryID
tblEmployeeProfile.SalaryID

我想返回包含以下字段的记录：

EmployeeID, FirstName, MiddleName, LastName, Email, ManagerFullName

where EmployeeID = @EmployeeID

*tblEmployeeProfile.ManagerID = tblPersonnel.PersonnelID*

我似乎无法使查询正确获取ManagerFullName

Answer 1

您可能需要尝试以下操作：

SELECT 
    e1.EmployeeID,
    e1.FirstName,
    e1.MiddleName,
    e1.LastName,
    e1.Email,
    e2.FirstName + ' ' + e2.LastName AS ManagerFullName
FROM
    tblPersonnel e1
INNER JOIN
    tblEmployeeProfile ep ON (ep.EmployeeID = e1.PersonnelID)
INNER JOIN
    tblPersonnel e2 ON (e2.PersonnelID = ep.ManagerID)
WHERE 
    e1.EmployeeID = @EmployeeID

Answer 2

不确定Tsql是否相同，但是你需要两个连接语句。第一次加入是员工表中的员工个人资料表。其次是将人员表加入到配置文件表中以获取管理员名称。可能看起来像这样

FROM personnel p
JOIN employeeprofile prof
ON prof.employeeID = p.personnelID
LEFT OUTER JOIN personnel man
ON man.personnelID = prof.managerID

我在经理人身上做左外连接的唯一原因是奇怪的是，用户可能没有分配经理。

Answer 3

SELECT
employee.PersonnelID, employee.FirstName, employee.MiddleName, employee.LastName, employee.Email, manager.FirstName + ' ' + manager.Surname
FROM
tblPersonnel AS employee
INNER JOIN tblEmployeeProfile ON employee.PersonnelID = tblEmployeeProfile.EmployeeID
INNER JOIN tblPersonnel AS manager ON tblEmployeeProfile.ManagerID = manager.PersonnelID
WHERE
employee.PersonnelID = @EmployeeID

Answer 4

试试这个：

SELECT
   p1.PersonnelID,
   p1.FirstName,
   p1.MiddleName,
   p1.LastName,
   p1.Email,
   p2.FirstName + ' ' + p2.MiddleName + ' ' + p2.LastName as ManagerFullName
FROM
   tblEmployeeProfile e,
   tblPersonnel p1,
   tblPersonnel p2
WHERE
   e.EmployeeId = p1.PersonnelId AND
   e.ManagerId = p2.PersonnelId AND
   e.EmployeeId = @EmployeeId

Answer 5

select p.EmployeeID
     , E.FirstName
     , E.MiddleName
     , E.LastName
     , E.Email
     ,   M.FirstName 
       + ' ' 
       + M.MiddleName
       + ' ' 
       + M.LastNameas as ManagerFullName
from tblPersonnel p
join tblEmployeeProfile as E on p.PersonnelID=E.EmplyeeID
join tblEmployeeProfile as M on M.PersonnelID=E.ManagerID
where E.EmplyeeID=@EmployeeID

当然假设：

tblPersonnel.PersonnelID = tblEmployeeProfile.EmployeeID
每个人都有一位经理（这意味着当你和他/她时，首席执行官会失踪）

Answer 6

你想做这样的事吗？

Select
    EmployeeID
    ,empTable.FirstName
    ,empTable.MiddleName
    ,empTable.LastName
    ,empTable.Email
    ,mgrTable.FirstName + ' ' 
   + mgrTable.MiddleName + ' '
   + mgrTable.LastName
      as ManagerFullName
from
    tblEmployeeProfile
    inner join
    tblPersonnel as empTable
        on tblEmployeeProfile.EmployeeID = empTable.PersonnelID
    inner join
    tblPersonnel as mgrTable
        on tblEmployeeProfile.ManagerID = mgrTable.PersonnelID
where EmployeeID = @EmployeeID

SQL Join查询，获取ManagerName

6 个答案: