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 From: Frank Cazabon
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 Frank Cazabon
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Subject: Get Effective Rate
Thread ID: 365790 Message ID: 365790 # Views: 97 # Ratings: 0
Version: Visual FoxPro 9 SP2 Category: Databases, Tables and SQL Server
Date: Monday, December 31, 2012 1:39:24 PM         
   


Hi,

solved (I think)

I am trying to write some code to ensure the correct effective rate is being used for a calculation. Here's some sample code:

CREATE CURSOR c_Coverage;
(cov_pk int,;
cov_desc c(10))

INSERT INTO c_Coverage ;
VALUES (1, "Coverage1")

INSERT INTO c_Coverage ;
VALUES (2, "Coverage2")

CREATE CURSOR c_CoverageRates;
(rat_pk int,;
rat_covfk int,;
rat_Rate n(10,2),;
rat_date d)

INSERT INTO c_CoverageRates;
values (1, 1, 5, DATE(2009,6,1))

INSERT INTO c_CoverageRates;
values (2, 1, 10, DATE(2010,1,1))

INSERT INTO c_CoverageRates;
values (3, 1, 15, DATE(2011,1,1))

INSERT INTO c_CoverageRates;
values (4, 2, 20, DATE(2010,1,1))

m.ldPeriodStart = DATE(2010, 6, 1)
m.ldPeriodEnd = GOMONTH(m.ldPeriodStart, 1) - 1

SELECT cov_desc, rat_rate, rat_date;
FROM c_Coverage ;
	INNER JOIN c_CoverageRates ON rat_covfk = cov_pk;
	ORDER BY cov_desc, rat_date/vfp>

This will give me this result:


Cov_desc  Rat_rate   Rat_date  
Coverage1       5.00 01/06/2009
Coverage1      10.00 01/01/2010
Coverage1      15.00 01/01/2011
Coverage2      20.00 01/01/2010


Now I need to get this, since the month I am selecting for (defined by m.ldPeriodStart and m.ldPeriodEnd) is June 2010:

Cov_desc  Rat_rate   Rat_date  
Coverage1      10.00 01/01/2010
Coverage2      20.00 01/01/2010


I know I've done this before but must have had too much celebrations over the last week!

Solution

SELECT cov_desc, rat_rate, c_CoverageRates.rat_date;
FROM (SELECT rat_covfk, MAX(rat_date) as rat_date ;
		FROM c_CoverageRates ;
		WHERE rat_date <= m.ldPeriodEnd;
		GROUP BY rat_covfk) rates;
	INNER JOIN c_CoverageRates ON rates.rat_covfk = c_CoverageRates.rat_covfk AND rates.rat_date = c_CoverageRates.rat_date;
	INNER JOIN c_Coverage ON cov_pk = rates.rat_covfk


Frank.

Frank Cazabon
Samaan Systems Ltd.
www.SamaanSystems.com

ENTIRE THREAD

Get Effective Rate Posted by Frank Cazabon @ 12/31/2012 1:39:24 PM
RE: Get Effective Rate Posted by Rahul Moudgill @ 12/31/2012 2:05:34 PM
RE: Get Effective Rate Posted by Frank Cazabon @ 12/31/2012 2:22:14 PM
RE: Get Effective Rate Posted by Cetin Basoz @ 12/31/2012 2:06:32 PM
RE: Get Effective Rate Posted by Frank Cazabon @ 12/31/2012 2:25:31 PM
RE: Get Effective Rate Posted by Cetin Basoz @ 12/31/2012 2:34:12 PM
RE: Get Effective Rate Posted by DEREK DODOO @ 3/28/2013 9:27:48 PM
RE: Get Effective Rate Posted by Cetin Basoz @ 3/28/2013 10:23:52 PM
RE: Get Effective Rate Posted by Frank Cazabon @ 3/29/2013 5:25:49 PM
RE: Get Effective Rate Posted by Frank Cazabon @ 3/29/2013 9:07:35 PM
RE: Get Effective Rate Posted by DEREK DODOO @ 3/30/2013 5:46:55 PM
RE: Get Effective Rate Posted by Frank Cazabon @ 3/30/2013 6:04:36 PM
RE: Get Effective Rate Posted by Anders Altberg @ 12/31/2012 5:30:38 PM
RE: Get Effective Rate Posted by Frank Cazabon @ 12/31/2012 7:15:13 PM