SAP DBTech JDBC: [260] (at 12): invalid column name:

I am working on the INV1 table.

When I run select * from INV1, it returns all the columns data with no problem

But when I run select LineTotal from INV1, it gives me the error "SAP DBTech JDBC: [260] (at 12): invalid column name:", but LineTotal is one of the columns in the INV1 table.

Am I missing anything in HANA? I used to work a lot with MS SQL Server, but this HANA gives me too much headache.