Help to find WorkID before the last touch transaction

Question

Hi,
May I ask your help on how to find the transaction (WorkID) or touched before the last transaction.
The last touched or transaction for per Itemcode should be "FJ_CBDEF". I have a sample data and DDL as your reference. In my Sample data the 2 result item will be "FJ_LMDADS" and "FJ_CBVFI2"
sample:
FJ_ENTRY
FJ_LMDADS--retrieve this workid
FJ_CBDEF--last touched
Create table #maintable
(Item nvarchar(35), Itemcode nvarchar(35))
Insert into #maintable(item,itemcode) values ('AAAAA','RPT00000001')
Insert into #maintable(item,itemcode) values ('BBBBB','RPT00000002')
Create table #Table1
(Itemcode nvarchar(35), RankNum int, WorkID nvarchar(35), CreatedDatetime datetime)
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000001','5','FJ_Pentry','2015-01-12 23:50:48.000')
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000001','15','FJ_CBDEF','2015-01-14 05:23:10.000')
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000001','10','FJ_LMDADS','2015-01-13 15:03:56.000')
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000002','0','FJ_Pentry','2015-01-12 23:53:47.000')
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000002','10','FJ_LMDADS','2015-01-13 14:52:15.000')
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000002','15','FJ_DiAss','2015-01-13 16:24:35.000')
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000002','20','FJ_CBVFI2','2015-01-13 19:47:36.000')
Insert into #table1(itemcode, RankNum, WorkID,CreatedDatetime) values ('RPT00000002','25','FJ_CBDEF','2015-01-14 05:22:52.000')
Create table #Table2
(Itemcode nvarchar(35), RankNum int, WorkID nvarchar(35), CreatedDatetime datetime, FCode nvarchar(5))
Insert into #table2(itemcode, RankNum, WorkID, CreatedDatetime, FCode) values ('RPT00000001','10','FJ_LMDAD','2015-01-12 23:50:48.000','FJ001')
Insert into #table2(itemcode, RankNum, WorkID, CreatedDatetime, FCode) values ('RPT00000002','20','FJ_CBVFI2','2015-01-13 19:47:36.000','FJ004')
Select m.Item, m.Itemcode, t1.RankNum, t1.WorkID, t1.CreatedDatetime, t2.FCode,
rn=ROW_NUMBER() OVER (partition by m.Itemcode order by m.Itemcode , t1.CreatedDatetime desc )
From #maintable m
Left join #Table1 t1
On t1.Itemcode = m.Itemcode
Left Join #Table2 t2
On t2.Itemcode = t1.Itemcode and t2.RankNum = t1.RankNum
Order by m.Itemcode, t1.RankNum

Answer 1

select * from (
Select m.Item, m.Itemcode, t1.RankNum, t1.WorkID, t1.CreatedDatetime, t2.FCode,
rn=ROW_NUMBER() OVER (partition by m.Itemcode order by t1.CreatedDatetime desc )
From #maintable m
Left join #Table1 t1
On t1.Itemcode = m.Itemcode
Left Join #Table2 t2
On t2.Itemcode = t1.Itemcode and t2.RankNum = t1.RankNum )
t
WHERE rn=2
Order by Itemcode, RankNum