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I have 3 tables and one table valued function: EmpHistory,EmpRank,Emp and fnEmpRank.
The sample data are given as follows:
EmpHistory
EmpHistID EmpID RankID MonitorDate RankName
1 aba JPR 2008-10-06 Junior Prof
2 aba JPR 2009-11-07 Junior Prof
3 aba TERM 2012-2-08 Termoinated Prof
4 aba ASST 2012-6-22 lab Assistant
5 aba ASST 2012-7-2 Lab Assistant
6 aba TSST 2012-8-4 Terminated Assistant
EmpRank
RankID RankName
JPR Junior Professor
SPR Senior Professor
ASST Junior Assistant
SASST Senior Assistant
PL Principal
Employee
EmpID EmpStartDate
aba 2008-10-06
abc01 2007-09-23
sdh 2009-7-26
sbs 2012-2-8
The fnEmpRank function takes the emproleID and gives the employee history same as the empHistory Table. There is also empoyeerole table which has employeeroleid column.
Now my problem is: I want the second last professor rank of the employee i.e in this case I want Junior Professor row(i.e) 2nd row from emphistory table). Currntly my code is using emphistory table but now intead of that table I want to use fnEmpRank as it gives the same data. I am also giving the sample code.
select
a.EmpID,
a.StartDate,
J.RankID,
c.MonitorDate,
from dbo.vwEmployee A(nolock)
INNER join dbo.EmpHistory c(nolock) on c.Empid = a.EmpID
and c.EmpHistoryID = (select max(c1.EmpHistoryID)
from dbo.EmpHistory c1(nolock)
where c1.Empid = c.EmpID
and c1.MonitorDate =
(
我有 3 个表和一个表值函数：EmpHistory、EmpRank、Emp 和 fnEmpRank。样本数据如下：
创建表 EmpHistory( EmpHistID int, EmpID varchar, RankID varchar, Monitordate Date, Rankname varchar)
insert into EmpHistory select 1,'aba','JPR','2008-10-6','Junior Professor'
insert into EmpHistory select 2,'aba','JPR','2009-11-7','Junior Professor'
插入 EmpHistory 选择 3,'aba','TERM','2012-2-8','Terminated Prof'
插入 EmpHistory 选择 4,'aba','ASST','2012-6-22','Lab Assistant'
插入 EmpHistory 选择 5,'aba','ASST','2012-7-2','Lab Assistant'
插入 EmpHistory 选择 1,'aba','JPR','2012-8-4','Terminated Assistant'
创建表 EmpRank( RankID varchar, RankName varchar )
插入 EmpRank 选择“JPR”、“初级教授”
插入 EmpRank 选择“SPR”、“高级教授”
插入 EmpRank 选择“ASST”、“初级助理”
插入 EmpRank 选择“SASST”、“高级助理”
插入 EmpRank 选择 'PL','Principal'
创建表 Employee( EmpID varchar, EmpStartDate date )
插入员工选择'aba'，'2008-10-06'
插入员工选择'abc01'，'2007-9-23'
插入员工选择'sdh'，'2009-7-26'
插入员工选择'sbs'，'2012-2-8'
The fnEmpRank function takes the emproleID and gives the employee history same as the empHistory Table. There is also empoyeerole table which has employeeroleid column.
Now my problem is: I want the second last professor rank of the employee i.e in this case I want Junior Professor row(i.e) 2nd row from emphistory table). Currntly my code is using emphistory table but now intead of that table I want to use fnEmpRank as it gives the same data. I am also giving the sample code.
select
a.EmpID,
a.StartDate,
J.RankID,
c.MonitorDate,
from dbo.vwEmployee A(nolock)
INNER join dbo.EmpHistory c(nolock) on c.Empid = a.EmpID
and c.EmpHistoryID = (select max(c1.EmpHistoryID)
from dbo.EmpHistory c1(nolock)
where c1.Empid = c.EmpID
and c1.MonitorDate =
(
SELECT MAX(C2.MonitorDate)
FROM dbo.EmpHistory C2
WHERE C2.EmpID = C1.EmpID
)
)
join dbo.EmpRank d(nolock) on d.RankID = a.RankID
left join dbo.EmpHistory f(nolock) on f.EmpID = a.EmpID
and f.EmpHistoryID = (select max(g.EmpHistoryID)
from dbo.EmpHistory g(nolock)
where g.EmpID = a.EmpID
AND G.RankID not like 'T%'
and g.EmpHistoryID < c.EmpHistoryID)
left join dbo.EmpRank h(nolock) on h.RankID = f.RankID
LEFT JOIN dbo.EmpHistory J(NOLOCK) ON J.EmpID = A.EmpID
AND J.EmpHistoryID = (
SELECT max(K.EmpHistoryID )
FROM dbo.EmpHistory K(NOLOCK)
WHERE K.EmpID = J.EmpID
AND K.AgentRankID NOT LIKE 'T%'
AND K.MonitorDate = (
SELECT max(M.MonitorDate )
FROM dbo.EmpHistory M(NOLOCK)
WHERE M.EmpID = J.EmpID
AND M.RankID NOT LIKE 'T%'
)
)
where
A.Prof=1
c.RankID like 'T%'
AND c.RankID <>'TSST'
AND A.StartDate is not null
Here there is one more problem: Even if the Employee is terminated from professor to Assitant, A.Prof values is still 1 and basically Assistant dont have the start dates but when professor are transformed to Assitant, they still contain the start date. How can I handle this in the code. Basically this code assumes that that if emp has the start date then he is the professor. Can any one help me?
SELECT MAX(C2.MonitorDate)
FROM dbo.EmpHistory C2
WHERE C2.EmpID = C1.EmpID
)
)
join dbo.EmpRank d(nolock) on d.RankID = a.RankID
left join dbo.EmpHistory f(nolock) on f.EmpID = a.EmpID
and f.EmpHistoryID = (select max(g.EmpHistoryID)
from dbo.EmpHistory g(nolock)
where g.EmpID = a.EmpID
AND G.RankID not like 'T%'
and g.EmpHistoryID < c.EmpHistoryID)
left join dbo.EmpRank h(nolock) on h.RankID = f.RankID
LEFT JOIN dbo.EmpHistory J(NOLOCK) ON J.EmpID = A.EmpID
AND J.EmpHistoryID = (
SELECT max(K.EmpHistoryID )
FROM dbo.EmpHistory K(NOLOCK)
WHERE K.EmpID = J.EmpID
AND K.AgentRankID NOT LIKE 'T%'
AND K.MonitorDate = (
SELECT max(M.MonitorDate )
FROM dbo.EmpHistory M(NOLOCK)
WHERE M.EmpID = J.EmpID
AND M.RankID NOT LIKE 'T%'
)
)
where
A.Prof=1
c.RankID like 'T%'
AND c.RankID <>'TSST'
AND A.StartDate is not null
Here there is one more problem: Even if the Employee is terminated from professor to Assitant, A.Prof values is still 1 and basically Assistant dont have the start dates but when professor are transformed to Assitant, they still contain the start date. How can I handle this in the code. Basically this code assumes that that if emp has the start date then he is the professor. Can any one help me?
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