Variables for prior and next periods in logic

Question

Hi,
I'd like to do something that I would have thought should be quite simple, but I just haven't managed to get it right.
In Category, we use the properties Year and Month. For example:
Member  Year     Month
Actual     2014     APR
SP          2016     DEC
The issue is that we would like to create SP (Strategic Plan) for 3 years, of which the year in the property, 2016, is the first.
Creating variables for the month and for the first SP year is simple:
*SELECT(%CYEAR_SP%,"[YEAR]","CATEGORY","[ID]= 'SP'")
*SELECT(%CMONTH_SP%,"[MONTH]","CATEGORY","[ID]= 'SP'")
I'd then like to  dynamically create 3 variables based on properties Year and Month; %SP1%, %SP2% and %SP3%, that I can use in scoping, in *WHEN/*IF, in GET and in *REC. It should be something like:
%SP1% = %CYEAR_SP%.%CMONTH_SP% (2016.DEC)
%SP2% = %CYEAR_SP%(+1).%CMONTH_SP% (2017.DEC)
%SP3% = %CYEAR_SP%(+2).%CMONTH_SP% (2018.DEC)
However it doesn't seem possible to use mathematical expressions for this, and I haven't managed to use NEXT or PRIOR successfully either.
Has anybody out there encountered this?
/Cecilia

Answer 1

Thanks Roberto! Square brackets for Year in *SELECT was the syntax solution, works like a charm!.
I developed this further by creating new variables concatenating the year and  month:
*SELECT(%SP1%,"[ID]","TIME","[ID]='%CYEAR_SP%.%CMONTH_SP%'")
*SELECT(%SP2%,"[ID]","TIME","[ID]='%CYEAR_SP2%.%CMONTH_SP%'")
*SELECT(%SP3%,"[ID]","TIME","[ID]='%CYEAR_SP3%.%CMONTH_SP%'")
/Cecilia