--Akad. Jahr 2022: WS + SS - Beispiel: WS 22/23 + SS 2023\
--Akad. Jahr 2022: WS + SS - Beispiel: WS 22/23 + SS 2023\
<#if "<<Jahr>>" !="">\
<#if jahr_param !="">\
<#assign jahr_filter="(" />\
<#assign jahr_filter="(" />\
<#assign jahr_filter=jahr_filter + "(substring('' || sem_rueck_beur_ein from 5 for 1)='2' and val(substring('' || sem_rueck_beur_ein from 1 for 4))=<<Jahr>>)" />\
<#assign jahr_filter=jahr_filter + "(substring('' || sem_rueck_beur_ein from 5 for 1)='2' and val(substring('' || sem_rueck_beur_ein from 1 for 4))="+jahr_param+")" />\
<#assign jahr_filter=jahr_filter + " or "/>\
<#assign jahr_filter=jahr_filter + " or "/>\
<#assign jahr_filter=jahr_filter + "(substring('' || sem_rueck_beur_ein from 5 for 1)='1' and (val(substring('' || sem_rueck_beur_ein from 1 for 4))-1)=<<Jahr>>)" />\
<#assign jahr_filter=jahr_filter + "(substring('' || sem_rueck_beur_ein from 5 for 1)='1' and (val(substring('' || sem_rueck_beur_ein from 1 for 4))-1)="+jahr_param+")" />\