@CURRMBR Function Func tion – A Discussion FROM TECHREF @CURRMBR Returns the member that is currently being calculated in the specified dimension ( dimName ! "his function can be used as a parameter of another function# $here that parameter is a single member or a list of members! Syntax @CURRMBR (dimName (dimName Parameter dimName
Description A single dimension dimension name!
Notes %ou %ou cannot use the @CURRMBR function in a F&' statement! %ou %ou cannot use the @CURRMBR function on the lefthand side of a formula! "he time re)uired for retrie*al and calculation may be significantly longer if this function is in a formula attached to a member tagged as Dynamic Calc or Dynamic Calc and +tore! Example &n the +ample Basic database#
@CURRMBR(%ear,
returns -an if the current member of %ear being calculated is -an! As a more comple. e.ample# consider the follo$ing formula in the conte.t of the +ample Basic database! Assume that the Measures dimension contains an additional member# A*erage A*erage +ales! /A*erage +ales/
(&F(@&+012(3roduct#4
+ales,
10+1
@A25RA651(+7&36861#+ales#@C9&0DR16(@CURRMBR(3roduct,
16D&F,,
"his formula populates each upperle*el member of the 3roduct dimension (:44# ;44 at A*erage +ales! "o calculate A*erage +ales# the +ales *alues for the le*el 4 members of 3roduct are a*eraged and placed in their respecti*e parent members! "he A*erage +ales *alues for the le*el 4 3roduct members are the same as the +ales *alues# as specified by the &F statement in the calculation script! "his e.ample produces the follo$ing report< -an
6e$ %or=
+ales
Actual
A*erage +ales
>>>>>
>>>>>>>>>>>>>
:44:4
?
?
:44;4
:4
:4
:444
:?
:?
:44
4
:4
;44:4
;4
;4
;44;4
;?
;?
;444
4
4
;444
?
?
;44
::4
;!?
44
M&
M&
44
M&
M&
Diet
?
3roduct
:4
::! ?
@CURRMBRRANGE 5enerates a member list that is based on the relati*e position of the current member being calculated! Syntax @CURRMBRRA651 (dimName# E516012G# genLevNum# HstartOffset I# HendOffset I Parameter dimName GEN|LE !enLe"N# m startO$$set
Description 6ame of the dimension for $hich you $ant to return the range list! Defines $hether the range list to be returned is based on a generation or a le*el $ithin the dimension! &nteger *alue that defines the absolute generation or le*el number of the range list to be returned! Defines the first member in the range to be returned! A null *alue returns the first member of the specified genLevNum! An integer *alue returns the member name relati*e to the current member being calculated!
endO$$set
A negati*e *alue specifies a member prior to the current member being calculated in the dimension! A *alue of 4 returns the name of the member currently being calculated! A positi*e *alue specifies a member after the current member being calculated in the dimension! Defines the last member in the range to be returned! A null *alue returns the last member of the specified genLevNum! An integer *alue returns the member name relati*e to the current member being calculated! A negati*e *alue specifies a member prior to the current member being calculated in the dimension! A *alue of 4 returns the name of the member currently being calculated! A positi*e *alue specifies a member after the current member being calculated in the dimension!
Notes %ou cannot use the @CURRMBRRA651 function in a F&' statement! "he first three parameters of this function (dimName#E516012G#genLevNum pro*ide a member range list! "he startOffset and endOffset parameters create a subset of this list! For e.ample# consider the follo$ing synta. in the conte.t of the +ample Basic database< @CURRMBRRA651(%ear#012#4#:#: &n this e.ample# the full range list contains the le*el 4 members of the %ear dimension (-an# Feb# Mar# Apr# May# -un# -ul# Aug# +ep# 8ct# 6o*# Dec! &f the current member being calculated in the %ear dimension is -an# the startOffset and endOffset parameters reduce this list to (-an# Feb! +ince there is no member prior to -an in the full range list# only t$o members are returned< -an itself and the member after it# Feb! &f the current member being calculated is Feb# the subset list $ould include three members< -an# Feb# Mar! Currently# this function can be used only $ithin range and financial functions# such as @A25RA651# @MA'RA651# @C8M38U6D# and @+9&F"! Example Example % A*erage &n*entory is calculated by summing opening in*entories from the first month of the year to the current period plus one period# and di*iding the result by the number of periods to date plus one period! "his calculation is accomplished by defining the @CURRMBRRA651 function $ithin therangeList parameter of the @A25RA651 function! /A*erage &n*entory/ > @A25RA651(+7&36861#/8pening &n*entory/# @CURRMBRRA651(%ear# 012# 4# # :, "his e.ample produces the follo$ing result< &an Fe' Mar (pr
No" Dec
8pening &n*entory :44 ::4 :;4 :4 ! ! ! ;44 ;:4 A*erage &n*entory :4? ::4 ::? :;4 ! ! !!:?? :?? +ince a null *alue is specified for startOffset # the a*erage operations al$ays begin at the first member of the range list# -an! "he endOffset parameter# :# specifies that the member after the current member being calculated is included in each a*erage operation! +o# for A*erage &n*entoryJ-an# the *alues for -an and Feb are a*eraged, for KA*erage
&n*entoryJFeb# the *alues for -an# Feb# and Mar are a*eraged, and so on! "he *alues for 6o* and Dec are the same since there is no member after Dec in the range list! Example ) &n*entory "urno*er is calculated by summing periodtodate +ales and di*iding the result by the A*erage &n*entory! "urno*er > @+UMRA651(+ales#@CURRMBRRA651(%ear# 012# 4# # 4L/A*erage &n*entory/ $hich produces the follo$ing result< &an A*erage &n*entory ::4
Fe'
Mar
(pr
::! :;;!? :;
+ales
4
"urno*er
4! 4!;
:!4
?; :!
Example * Consider the follo$ing formula< @CURRMBRRA651(%ear#012#@CUR012(/%ear/#:#: "he full range list contains the members of the %ear dimension at a particular le*el! "he le*el is determined by ta=ing the le*el of the current member being calculated! For e.ample# if the current member being calculated is -an# the full range list contains all le*el 4 members of %ear dimension (-an# Feb# Mar# Apr# May# -un# -ul# Aug# +ep# 8ct# 6o*# Dec! "he startOffset and endOffset parameters reduce this list to (-an# Feb! As there is no member prior to -an in the full range list# only t$o members are returned< -an and Feb! &f the current member being calculated is Feb# the subset list includes three members< -an# Feb# Mar! Note+
"he usage demonstrated by this e.ample $ould re)uire R"D13CA0C83"&M&N1 to be set to FA0+1!
FROM OTHER SO,RCES Ho- does .C,RRM/R -or01 1ssbase pro*ides a suite of calculation functions to facilitate the definition and de*elopment of comple. member formula calculations! "he @CURRMBR calculation function is especially useful $ith scoping and managing comple. calculations! "he @CURRMBR (dimension) function is used to return the name of the member currently being calculated in the specified dimension! Ohen using the @CURRMBR calculation function# ta=e into consideration if the calculation is dense or sparse! "he @CURRMBR calculation function is e.pected to be slo$er $hen used on a dense dimension since the function calculates at the bloc= le*el# not the cell le*el! As a result# the function $ill calculate all of the dense dimension members# e*en if a particular dense dimension member is not present in the )uery! Con*ersely# performance is not an issue $hen using the @CURRMBR calculation function on a sparse dimension since the bloc= corresponds to only one sparse dimension member! &n addition# the @CURRMBR function on a dense dimension could produce une.pected res ults or errors $hen used in conPunction $ith other functions such as @C86CA"16A"1! For e.ample# if a dynamically calculated member in a )uery contains the formula QActualJ@M1MB1R (@C86CA"16A"1 (@6AM1 (@CURRMBR
(/Account/#/S"otal/ and the Account dimension is sparse# the )uery $ill run $ithout error as long as the account in the )uery generates a *alid outline member! 9o$e*er# if the Account dimension is dense# the )uery $ill result in the follo$ing error e*en if the account in the )uery generates a *alid outline member< 1rror e.ecuting formula for Hmember nameI (line 4< attempt to cross a null @ member in function H@'I "he error is produced because the @CURRMBR function calculates at the bloc= le*el and therefore calculates on all accounts in the dense bloc=! 6ot all accounts $ithin the bloc= $ill generate a *alid outline member# resulting in the error message abo*e!
.C,RRM/R 2N (LLOC(T2ONS 8ften times $ith a 9yperion 1ssbase or 3lanning application# an allocation of data $ill be re)uired! Many times# the allocation is simply mo*ing data from one member to another! Ohen the number of members in*ol*ed is large# de*eloping the script can be time consuming! Ohen the members fre)uently change# the maintenance of the calculation can be a nuisance! Ohen the members in*ol*ed in the allocation are similar on both sides (the from and the to# the follo$ing method can be employed to speed the de*elopment and limit# or eliminate# any maintenance re)uired! Re3#irement "he application has ?4 members in $hich the data needs to be mo*ed! "he data originates from an account coming from the general ledger! "he data needs to be mo*ed to a ne$ member that doesnTt e.ist in the chart of accounts! "he ne$ member $ill e.ist in a different part of the hierarchy! Sol#tion "he first step is to create a corresponding member for each of the ?4 accounts that need allocated! "hese accounts $ill be identical to the original ?4# e.cept they $ill be prefi.ed $ith a QD identifying them as a dummy# or made up# account! 1ach of these ne$ accounts $ill ha*e a UDA of Qallocation! "he prefi. of the member and the UDA are not critical! "hey $ill li=ely be something more meaningful to the re)uirements! 50 Acct
Dummy Account
?44?
D?44?
?44?
D?44?
4
D4
8nce the hierarchy is ready to handle the allocation# the follo$ing function can be used! &n laymans terms# this only e.ecutes on the ne$ members added (identified by the uni)ue UDA and ma=es them e)ual to the corresponding member $ithout the added prefi.! Oe $ill assume that this is being e.ecuted on a scenario that e)uals QActuals! F&'(@UDA(Qallocation LV Ma=e the ne$ member e)ual to the old member VL QActuals > @M1MB1R ( @+UB+"R&65 ( @6AM1(@CURRMBR(/Account/ # :, LV Clear the old member VL @M1MB1R ( @+UB+"R&65 ( @6AM1(@CURRMBR(/Account/ # : > Missing, 16DF&' 0etTs assume that the UDA is 68" added to the ne$# or dummy# member! &f the UDA is on the originating member# the calculation $ould loo= li=e this! F&'(@UDA(Qallocation LV Ma=e the ne$ member e)ual to the old member VL
@M1MB1R ( @C86CA"16A"1(/D/#@6AM1(@CURRMBR(/Account/ > QActuals, LV Clear the old member VL Actuals > Missing, 16DF&' 6o$ $e can brea= do$n these functions! Remember# the calculations loop through all members in all dimensions! &n this e.ample# setting the result e)ual to QActuals is simply ma=ing the account that the calculation is loo=ing at# at that particular point in the loop# e)ual to $hate*er is on the other side of the e)uation! @M1MB1R ( @+UB+"R&65 ( @6AM1(@CURRMBR(/Account/ # : "here are four functions used in this string! @M1MB1R $ill con*ert a string to a member name @+UB+"R&65 re)uires ; parameters ( optional! "he first is the larger string from $hich you $ant to ta=e a smaller string! "he second is $here to start# $ith 4 being the first character! "he third is ho$ many characters to include! &f this is left blan=# it $ill ta=e all the characters to the right of the second parameter! @6AM1 $ill con*ert a member to a string! @CURRMBR gets the current member of a specified dimension! 3utting this all together# this calculation (from inside out is getting the current member of the Accounts dimension (Qd?! &t con*erts that member to a string! &t ta=es all the characters to the right of the first character (Q?! "hen it con*erts the string bac= to a member! At this point# $e can set that member e)ual to something! @M1MB1R ( @C86CA"16A"1(/D/#@6AM1(@CURRMBR(/Account/ "he functions here are the same as abo*e# e.cept $e are not remo*ing the Qd! Oe are adding it! @C86CA"16A"1 accepts t$o parameters and $ill combine those t$o in to one string 3utting this all together# this calculation (from inside out is concatenating t$o strings# a QD and the current member of the Accounts dimension (Qd?! &t then con*erts the string to a member! At this point# $e can set that member e)ual to something! /ene$its By using these functions# the calculations can be much smaller# )uic=er to de*elop# and completely maintained by the outline! "his effecti*ely gi*es the user community o$nership on the maintenance!
OTHER ,S(GES Trans4ipments &n some 1ssbase models there is a need to capture t$o essentially identical elements in separate dimensions! 8ne common e.ample of this is a transhipment model# $here it is necess ary to identify both the origination and destination of a shipment! T-o Dimensions "he most straightfor$ard# and often userfriendly# manner to accomplish this type of trac=ing is to ha*e the same hierarchy in t$o dimensions# $ith each member prefi.ed differently (i!e! the +ource location members might be prefi.ed $ith /"8
A simple metric to consider in this type of model is often 6et +hipments! &n a multidimensional database# to calculate 6et +hipments# shipments out of a location needs to be subtracted from shipments in (or *ice*ersa# depending on your preference! Assuming this is being calculated for 0ocation A# the formula might loo= li=e< +hipments J "8
.N(ME or .(L2(S< Used to pass either an 1ssbase Member 6ame or the respecti*e members Alias 6ame to another function as a string!
•
.S,/STR2NG< "his function $ill return a portion of a string passed to it!
•
.CONC(TEN(TE< Used to Poin t$o strings together!
•
.MEM/ER< "urns a string into a reference to a member name!
For this e.ample# &ll also utiliWe .C,RRM/R! "his function returns the current member being calculated from a gi*en dimension! +o# to determine the corresponding destination from a member in the source dimension<
:!
"urn the current member in the source dimension into a string<.N(ME5.C,RRM/R56So#rce677
;!
Remo*e the prefi. /"8
!
3refi. the ne$ string $ith /FR8M
!
Con*ert the string into a reference to a member<.MEM/ER5@C86CA"16A"1(/FR8M
Using this formula# you can fi. on the portion of a hierarchy in the +ource dimension# and ha*e access to each members corresponding Destination member! "he original e.ample of calculating 6et +hipments might loo= li=e< Fi.(@R10A"&21(/+ource/#4
/6et +hipments/( /+hipments/J/"otal Destination/ /+hipments/J/"otal +ource/ J@M1MB1R(@C86CA"16A"1(/FR8M
