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Solved
GET THE RIGHT EXCHANGE RATE FROM TABLE
Posted on 2012-12-27
Hi All,
I have transaction table and a exchange rate table.
I. TableA
1. TrsId
2. TrsDate
3. CurcyCode
II. TableB
1. CurcyCode
2. ExchangeDate
3. ExchangeRate
My problem is how to get the right exchange rate for every transaction ?
Scenario :
1. If TrsDate = ExchangeDate then get the ExchangeRate.
2. If TrsDate > ExchangeDate then get the latest ExchangeDate before the TrsDate's ExchangeRate.
How could I do it ?
Thank you.
I have transaction table and a exchange rate table.
I. TableA
1. TrsId
2. TrsDate
3. CurcyCode
II. TableB
1. CurcyCode
2. ExchangeDate
3. ExchangeRate
My problem is how to get the right exchange rate for every transaction ?
Scenario :
1. If TrsDate = ExchangeDate then get the ExchangeRate.
2. If TrsDate > ExchangeDate then get the latest ExchangeDate before the TrsDate's ExchangeRate.
How could I do it ?
Thank you.
[X]
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40 Comments
try this:
select TrsDate ,(select top(1) ExchangeDate from TableB b where b.ExchangeDate <=a.TrsDate order by b.ExchangeDate desc) ExchangeDate
from TableA a
select TrsDate ,(select top(1) ExchangeDate from TableB b where b.ExchangeDate <=a.TrsDate order by b.ExchangeDate desc) ExchangeDate
from TableA a
--------------------------
DECLARE @Transaction TABLE (
TrsID INT IDENTITY (1,1)
,TrsDate DATETIME
,CurcyCode VARCHAR(20)
)
INSERT INTO @Transaction VALUES ('2012-12-04', 'PKR')
INSERT INTO @Transaction VALUES ('2012-12-03', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-07', 'PKR')
INSERT INTO @Transaction VALUES ('2012-12-08', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-09', 'USD')
--------------------------
DECLARE @Exchange TABLE (
CurcyCode VARCHAR(20)
,ExchangeDate DATETIME
,ExchangeRate MONEY
)
INSERT INTO @Exchange VALUES ('PKR', '2012-12-01', '150.00')
INSERT INTO @Exchange VALUES ('USD', '2012-12-02', '1.61')
INSERT INTO @Exchange VALUES ('USD', '2012-12-03', '1.59')
INSERT INTO @Exchange VALUES ('PKR', '2012-12-04', '153.50')
INSERT INTO @Exchange VALUES ('PKR', '2012-12-05', '155.00')
INSERT INTO @Exchange VALUES ('USD', '2012-12-06', '1.65')
INSERT INTO @Exchange VALUES ('PKR', '2012-12-10', '157.50')
INSERT INTO @Exchange VALUES ('USD', '2012-12-11', '1.75')
--------------------------
SELECT
*
,(
SELECT TOP 1 e.ExchangeRate
FROM @Exchange e
WHERE e.CurcyCode = t.CurcyCode AND e.ExchangeDate <= t.TrsDate
ORDER BY e.ExchangeDate DESC
) AS ExchangeRate
FROM
@Transaction t
DECLARE @Transaction TABLE (
TrsID INT IDENTITY (1,1)
,TrsDate DATETIME
,CurcyCode VARCHAR(20)
)
INSERT INTO @Transaction VALUES ('2012-12-04', 'PKR')
INSERT INTO @Transaction VALUES ('2012-12-03', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-07', 'PKR')
INSERT INTO @Transaction VALUES ('2012-12-08', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-09', 'USD')
--------------------------
DECLARE @Exchange TABLE (
CurcyCode VARCHAR(20)
,ExchangeDate DATETIME
,ExchangeRate MONEY
)
INSERT INTO @Exchange VALUES ('PKR', '2012-12-01', '150.00')
INSERT INTO @Exchange VALUES ('USD', '2012-12-02', '1.61')
INSERT INTO @Exchange VALUES ('USD', '2012-12-03', '1.59')
INSERT INTO @Exchange VALUES ('PKR', '2012-12-04', '153.50')
INSERT INTO @Exchange VALUES ('PKR', '2012-12-05', '155.00')
INSERT INTO @Exchange VALUES ('USD', '2012-12-06', '1.65')
INSERT INTO @Exchange VALUES ('PKR', '2012-12-10', '157.50')
INSERT INTO @Exchange VALUES ('USD', '2012-12-11', '1.75')
--------------------------
SELECT
*
,(
SELECT TOP 1 e.ExchangeRate
FROM @Exchange e
WHERE e.CurcyCode = t.CurcyCode AND e.ExchangeDate <= t.TrsDate
ORDER BY e.ExchangeDate DESC
) AS ExchangeRate
FROM
@Transaction t
Try this query and get back if you face any problem:
SELECT B.ExchangeRate,
TOP 1 CASE WHEN A.TrsDate > B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
GROUP BY B.ExchangeRate
ORDER BY B.ExchangeDate DESC;
SELECT B.ExchangeRate,
TOP 1 CASE WHEN A.TrsDate > B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
GROUP BY B.ExchangeRate
ORDER BY B.ExchangeDate DESC;
Active today
Hi k_murli_krishna,
Your code get the below message :
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'TOP'.
Thank you.
Your code get the below message :
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'TOP'.
Thank you.
Select TrsID ,ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate
Union
Select X.TrsID ,ExchangeRate
From (
Select TrsID ,Max(ExchangeDate),Exchang
ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate > ExchangeDate
and TrsID not in (
Select TrsID ,ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate) ) X
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate
Union
Select X.TrsID ,ExchangeRate
From (
Select TrsID ,Max(ExchangeDate),Exchang
ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate > ExchangeDate
and TrsID not in (
Select TrsID ,ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate) ) X
Active today
Hi pratima_mcs,
Your code error here :
TrsID not in (
Select TrsID ,ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate)
select clause more than columns (Select TrsID ,ExchangeRate)
Thank you.
Your code error here :
TrsID not in (
Select TrsID ,ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate)
select clause more than columns (Select TrsID ,ExchangeRate)
Thank you.
Select TrsID ,ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate
Union
Select X.TrsID ,ExchangeRate
From (
Select TrsID ,Max(ExchangeDate),Exchang
ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate > ExchangeDate
and TrsID not in (
Select TrsID
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate) ) X
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate
Union
Select X.TrsID ,ExchangeRate
From (
Select TrsID ,Max(ExchangeDate),Exchang
ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate > ExchangeDate
and TrsID not in (
Select TrsID
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate) ) X
try like this....
Declare @TableA table (TrsId int,TrsDate datetime, CurcyCode int)
Declare @TableB table (CurcyCode int,ExchangeDate datetime,ExchangeRate int)
insert into @tablea
select 1,getdate(),10
union all
select 2,getdate()-1,11
insert into @tableb
select 10,getdate(),100
union all
select 11,getdate()-3,200
union all
select 11,getdate()-4,220
union all
select 10,getdate()-1,90
select * from @tablea
select * from @tableb
select t1.*,ISNULL(t2.ExchangeRate,x.ExchangeRate) as ExchangeRate from @tablea t1
left join @TableB t2 on t1.CurcyCode=t2.CurcyCode and t1.TrsDate=t2.ExchangeDate
outer apply ( select top(1) ExchangeRate from @tableB where ExchangeDate < t1.TrsDate order by ExchangeDate desc ) x
Active today
Select TrsID ,Max(ExchangeDate),Exchang
ExchangeRate
When we use max() should have group by.
It has double ExchangeRate.
Thank you.
ExchangeRate
When we use max() should have group by.
It has double ExchangeRate.
Thank you.
Can you post some sample data for both tables and the output data-set which you required as result...
that will be helpfull
that will be helpfull
It is very difficult to get it in a single query since one situation will fetch multiple rows and the second one a single row. The problem can be solved in two different queries as follows:
Query 1: If TrsDate = ExchangeDate then get the ExchangeRate.
SELECT CASE WHEN A.TrsDate = B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode;
Query 2: If TrsDate > ExchangeDate then get the latest ExchangeDate before the TrsDate's ExchangeRate.
SELECT TOP 1 CASE WHEN A.TrsDate > B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
GROUP BY B.ExchangeRate
ORDER BY B.ExchangeDate DESC;
You can try adding more columns in both query's SELECT list if you require any.
For obtaining in a single query, you can try:
SELECT CASE WHEN A.TrsDate = B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
UNION
SELECT TOP 1 CASE WHEN A.TrsDate > B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
GROUP BY B.ExchangeRate
ORDER BY B.ExchangeDate DESC;
The SELECT list in UNION should be of same number and type of columns.
Query 1: If TrsDate = ExchangeDate then get the ExchangeRate.
SELECT CASE WHEN A.TrsDate = B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode;
Query 2: If TrsDate > ExchangeDate then get the latest ExchangeDate before the TrsDate's ExchangeRate.
SELECT TOP 1 CASE WHEN A.TrsDate > B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
GROUP BY B.ExchangeRate
ORDER BY B.ExchangeDate DESC;
You can try adding more columns in both query's SELECT list if you require any.
For obtaining in a single query, you can try:
SELECT CASE WHEN A.TrsDate = B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
UNION
SELECT TOP 1 CASE WHEN A.TrsDate > B.ExchangeDate
THEN B.ExchangeRate
END
FROM TableA A
INNER JOIN TableB B
ON A.CurcyCode = B.CurcyCode
GROUP BY B.ExchangeRate
ORDER BY B.ExchangeDate DESC;
The SELECT list in UNION should be of same number and type of columns.
I have modified my code slightly ... If you get any Nulls can you send me the specific TrsDate and CurcyCode ... as it will help debug
-----------------------------------------------
DECLARE @Transaction TABLE (
TrsID INT IDENTITY (1,1)
,TrsDate VARCHAR(20)
,CurcyCode VARCHAR(20)
)
INSERT INTO @Transaction VALUES ('2012-11-04', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-04', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-03', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-07', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-08', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-09', 'USD')
-----------------------------------------------
DECLARE @Exchange TABLE (
CurcyCode VARCHAR(20)
,ExchangeDate VARCHAR(20)
,ExchangeRate MONEY
)
INSERT INTO @Exchange VALUES ('GBP', '2012-12-01', '15000')
INSERT INTO @Exchange VALUES ('USD', '2012-12-02', '9161')
INSERT INTO @Exchange VALUES ('USD', '2012-12-03', '9159')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-04', '15350')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-05', '15500')
INSERT INTO @Exchange VALUES ('USD', '2012-12-06', '9165')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-10', '15750')
INSERT INTO @Exchange VALUES ('USD', '2012-12-11', '9175')
-----------------------------------------------
SELECT
*
,ISNULL((
SELECT TOP 1 e.ExchangeRate
FROM @Exchange e
WHERE e.CurcyCode = t.CurcyCode AND CONVERT(DATETIME, e.ExchangeDate) <= CONVERT(DATETIME, t.TrsDate )
ORDER BY CONVERT(DATETIME, e.ExchangeDate) DESC
), 0) AS ExchangeRate
FROM
@Transaction t
Select TrsID ,ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate
Union
Select X.TrsID ,B2.ExchangeRate
From (
Select TrsID ,Max(ExchangeDate)
ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate > ExchangeDate
and TrsID not in (
Select TrsID
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate)
Group by TrsID
) X inner join TableB B2 on X.TrsID = B2.TrsID
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate
Union
Select X.TrsID ,B2.ExchangeRate
From (
Select TrsID ,Max(ExchangeDate)
ExchangeRate
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate > ExchangeDate
and TrsID not in (
Select TrsID
From TableA A inner join TableB B on A.CurcyCode=B.CurcyCode
where TrsDate = ExchangeDate)
Group by TrsID
) X inner join TableB B2 on X.TrsID = B2.TrsID
try this:
select TrsDate ,(select top(1) ExchangeDate from TableB b where b.ExchangeDate <=a.TrsDate and a.CurcyCode=b.CurcyCode order by b.ExchangeDate desc) ExchangeDate
from TableA a
select TrsDate ,(select top(1) ExchangeDate from TableB b where b.ExchangeDate <=a.TrsDate and a.CurcyCode=b.CurcyCode order by b.ExchangeDate desc) ExchangeDate
from TableA a
Active today
H pratima_mcs,
- inner join TableB B2 on X.TrsID = B2.TrsID
B2 has no TrsId column.
- Select TrsID ,Max(ExchangeDate)
ExchangeRate
Why Max(ExchangeDate) to ExchangeRate ?
Thank you.
- inner join TableB B2 on X.TrsID = B2.TrsID
B2 has no TrsId column.
- Select TrsID ,Max(ExchangeDate)
ExchangeRate
Why Max(ExchangeDate) to ExchangeRate ?
Thank you.
Active today
Hi All,
It seems that harshada_sonawane code solve the problem.
I've just tested at a glance.
Any idea of the code, is it perfect ?
Thank you.
It seems that harshada_sonawane code solve the problem.
I've just tested at a glance.
Any idea of the code, is it perfect ?
Thank you.
Active today
Hi All,
It seems that harshada_sonawane and RehanYousaf code solve the problem.
I've just tested at a glance.
Any idea of the code, is it perfect ?
Thank you.
It seems that harshada_sonawane and RehanYousaf code solve the problem.
I've just tested at a glance.
Any idea of the code, is it perfect ?
Thank you.
Active today
@ harshada_sonawane and RehanYousaf
What if the selected ExchangeDate has ExchangeRate = 0 ?
Thank you.
What if the selected ExchangeDate has ExchangeRate = 0 ?
Thank you.
if you want to skip 0 then try the following code
-----------------------------------------------
DECLARE @Transaction TABLE (
TrsID INT IDENTITY (1,1)
,TrsDate VARCHAR(20)
,CurcyCode VARCHAR(20)
)
INSERT INTO @Transaction VALUES ('2012-11-04', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-04', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-03', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-07', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-08', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-09', 'USD')
-----------------------------------------------
DECLARE @Exchange TABLE (
CurcyCode VARCHAR(20)
,ExchangeDate VARCHAR(20)
,ExchangeRate MONEY
)
INSERT INTO @Exchange VALUES ('GBP', '2012-11-01', '14000')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-01', '15000')
INSERT INTO @Exchange VALUES ('USD', '2012-12-02', '9161')
INSERT INTO @Exchange VALUES ('USD', '2012-12-03', '9159')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-04', '0')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-05', '15500')
INSERT INTO @Exchange VALUES ('USD', '2012-12-06', '9165')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-10', '15750')
INSERT INTO @Exchange VALUES ('USD', '2012-12-11', '9175')
-----------------------------------------------
SELECT
*
,ISNULL((
SELECT TOP 1 e.ExchangeRate
FROM @Exchange e
WHERE e.CurcyCode = t.CurcyCode AND CONVERT(DATETIME, e.ExchangeDate) <= CONVERT(DATETIME, t.TrsDate ) and e.ExchangeRate != 0
ORDER BY CONVERT(DATETIME, e.ExchangeDate) DESC
), 0) AS ExchangeRate
FROM
@Transaction t
Active today
Since if the ExchangeRate same as before there will no adding data for the same rate until its rate change.
Thank you.
Thank you.
Active today
Try update ExchangeRate to 0
for USD
where month = 6 and day between 12 and 15
Then run your query. What are the result ?
Thank you.
for USD
where month = 6 and day between 12 and 15
Then run your query. What are the result ?
Thank you.
Active today
update TableB
set ExchangeRate = 0
WHERE CURCYCODE = 'USD'
AND MONTH(ExchangeDate) = 6
and day(ExchangeDate) between 12 and 15
Run the above command and test your query to see your result.
Thank you.
set ExchangeRate = 0
WHERE CURCYCODE = 'USD'
AND MONTH(ExchangeDate) = 6
and day(ExchangeDate) between 12 and 15
Run the above command and test your query to see your result.
Thank you.
-----------------------------------------------
DECLARE @Transaction TABLE (
TrsID INT IDENTITY (1,1)
,TrsDate VARCHAR(20)
,CurcyCode VARCHAR(20)
)
INSERT INTO @Transaction VALUES ('2012-11-04', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-04', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-03', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-07', 'GBP')
INSERT INTO @Transaction VALUES ('2012-12-08', 'USD')
INSERT INTO @Transaction VALUES ('2012-12-09', 'USD')
-----------------------------------------------
DECLARE @Exchange TABLE (
CurcyCode VARCHAR(20)
,ExchangeDate VARCHAR(20)
,ExchangeRate MONEY
)
INSERT INTO @Exchange VALUES ('GBP', '2012-11-01', '14000')
INSERT INTO @Exchange VALUES ('USD', '2012-06-14', '6000') -- New
INSERT INTO @Exchange VALUES ('GBP', '2012-12-01', '15000')
INSERT INTO @Exchange VALUES ('USD', '2012-12-02', '9161')
INSERT INTO @Exchange VALUES ('USD', '2012-12-03', '9159')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-04', '0')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-05', '15500')
INSERT INTO @Exchange VALUES ('USD', '2012-12-06', '9165')
INSERT INTO @Exchange VALUES ('GBP', '2012-12-10', '15750')
INSERT INTO @Exchange VALUES ('USD', '2012-12-11', '9175')
-----------------------------------------------
UPDATE
@Exchange
SET
ExchangeRate = 0
WHERE
CURCYCODE = 'USD'
AND MONTH(ExchangeDate) = 6
AND DAY(ExchangeDate) BETWEEN 12 AND 15
SELECT * FROM @Exchange
SELECT
*
,ISNULL((
SELECT TOP 1 e.ExchangeRate
FROM @Exchange e
WHERE e.CurcyCode = t.CurcyCode AND CONVERT(DATETIME, e.ExchangeDate) <= CONVERT(DATETIME, t.TrsDate ) AND e.ExchangeRate != 0
ORDER BY CONVERT(DATETIME, e.ExchangeDate) DESC
), 0) AS ExchangeRate
FROM
@Transaction t
I added the follwoing script as you requested
UPDATE
@Exchange
SET
ExchangeRate = 0
WHERE
CURCYCODE = 'USD'
AND MONTH(ExchangeDate) = 6
AND DAY(ExchangeDate) BETWEEN 12 AND 15
SELECT * FROM @Exchange
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