sql - JOIN two table to themselves and calculate a value based on the two -

-

using sql server 2012

i have 2 tables joined.

[apxfirm].[advapp].[vmarketindexrate]  [apxfirm].[advapp].[vmarketindex]

joining these 2 able indexname, asofdate , rate

however want calculate weighted sum of 2 indexes. s&p500 weighted .4 , dj average weighted .6. tried query below , result not blended rate. first indexes rate.

for example if on given date sp = 100 , dj = 200 blend rate should 40 + 120 = 160

here query

use apxfirm select 'blend' 'indexname', ir1.asofdate,    sum(ir1.rate*.4+ir2.rate*.6) 'blendrate'   [apxfirm].[advapp].[vmarketindexrate] ir1    inner join [apxfirm].[advapp].[vmarketindex] mi1     on ir1.indexid = mi1.indexid      inner join [apxfirm].[advapp].[vmarketindexrate] ir2     on ir2.indexid = ir1.indexid , ir2.asofdate = ir1.asofdate     inner join [apxfirm].[advapp].[vmarketindex] mi2     on ir2.indexid = ir1.indexid , ir2.asofdate = ir1.asofdate   mi1.indexname = 'sp'   ,  mi2.indexname = 'djind'   group mi1.indexname ,            ir1.asofdate ,            ir1.rate ,            mi2.indexname ,            ir2.asofdate ,            ir2.rate

here sample of data. note weight not actual column. included illustrative purposes.

indexname   asofdate    rate    weight  indexname   asofdate    rate    weight  blendrate sp500   12/31/2012      100        0.6  dowjones    12/31/2012  90      0.4     96 sp500   1/31/2013       110        0.6  dowjones    1/31/2013   95      0.4     104 sp500   2/28/2013       120        0.6  dowjones    2/28/2013   100     0.4     112 sp500   3/31/2013       130        0.6  dowjones    3/31/2013   110     0.4     122

here desired output.

indexname   asofdate    blendrate blend   12/31/2012      96 blend   1/31/2013       104 blend   2/28/2013       112 blend   3/31/2013       122

if understood problem right, problem in "from" block - try use next one:

select 'blend' 'indexname'       ,ir1.asofdate       ,sum(ir1.rate*.4+ir2.rate*.6) 'blendrate'  [apxfirm].[advapp].[vmarketindexrate] ir1      inner join [apxfirm].[advapp].[vmarketindex] mi1              on ir1.indexid = mi1.indexid       inner join [apxfirm].[advapp].[vmarketindexrate] ir2              on ir2.asofdate = ir1.asofdate      inner join [apxfirm].[advapp].[vmarketindex] mi2              on ir2.indexid = mi2.indexid  mi1.indexname = 'sp'   , mi2.indexname = 'djind'  group mi1.indexname         ,ir1.asofdate         ,ir1.rate         ,mi2.indexname         ,ir2.asofdate         ,ir2.rate

Comments

Post a Comment

Popular posts from this blog

qt - Using float or double for own QML classes -

-
i've created components , helper methods using c++ , qt used in qml gui. of methods calculate gui elements (size, transformations, scene graph items creation). target arm 32 bit using opengl / eglfs render output. opengl using float , qml using real (defined double ). what should use in c++ do not lose precision? if use qreal ( double ) shouldn't lose precision. if git grep float in qtbase.git , can find out bit more: dist/changes-5.2.0-**************************************************************************** dist/changes-5.2.0-* important behavior changes * dist/changes-5.2.0-**************************************************************************** dist/changes-5.2.0- dist/changes-5.2.0- - qt compiled qreal typedef'ed double on dist/changes-5.2.0: platforms. qreal float on arm chipsets before. guarantees more dist/changes-5.2.0- consistent behavior between platforms qt supports, binary dist/chan...
Read more

Create Outlook appointment via C# .Net -

-
i need create outlook appointment using microsoft.office.interop.outlook , while can work locally on own workstation , works if run web application via server's browser, not work when connect server externally. hence, think might permission issue. i changed application pool identity " localsystem " don't access denied error. unfortunately, doesn't work. the app behaves if appointment created, appointment doesn't appear in outlook. here include file on top of aspx.cs page using outlook = microsoft.office.interop.outlook; here code using pop appointment. outlook.application apptapp = new outlook.application(); outlook.appointmentitem appt = apptapp.createitem(outlook.olitemtype.olappointmentitem) outlook.appointmentitem; appt.subject = txtfirstname.text + " " + txtlastname.text; appt.body = txtcomment.text; appt.alldayevent = false; appt.start = datetime.parse(txtreminderdate.text + " 8:00 am"); appt.end = datetime.p...
Read more

ios - Swift Array Resetting Itself -

-
i have 2 arrays: pointhistory , datehistory . have nstimer , , when timer runs out, action called. in action appending int pointhistory , , current date string datehistory . here timer action: func timeraction() { let steppervalue = int(stepper.value) employee.numberofpoints = steppervalue networking.saveemployee(employee, completion: { (error) -> void in if error != nil { let alert = uialertcontroller(title: "error", message: "there error updating \(self.employee.name)'s points", preferredstyle: .alert) let alertaction = uialertaction(title: "ok", style: .cancel, handler: nil) alert.addaction(alertaction) self.presentviewcontroller(alert, animated: true, completion: nil) } }) var dateformatter = nsdateformatter() dateformatter.dateformat = "mm-dd-yyyy" dateformatter.timezone = nstimezone.localtimezone() var date = nsdate() var ...
Read more