Hi all,
I can't realize how to create a sql custom function. I need to transform
a string column value into a number as in:
def mese(par):
mm = dict(A=1,B=2,C=3,D=4,E=5,H=6,L=7,M=8,P=9,R=10,S=11,T=12)
return mm[par.upper()]
I tried to use it in a query as this one below, but it doesn't work:
session.query(Ana).filter(Ana.c.mese==mese(sa.func.substr(Ana.c.cfiscale,8,9))
Please, could someone help me to write a such function?
thanks
j
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