SQL Server 2022

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CREATE TABLE [PRICE](
    [ISIN] [varchar](50) NOT NULL,
    [Nemo] [varchar](50) NOT NULL,
    [Month(t)] [int] NOT NULL,
    [Month(t-1)] [int] NOT NULL,
    [Month(t-2)] [int] NOT NULL
        )
insert into [PRICE] (isin, nemo, [Month(t)], [Month(t-1)], [Month(t-2)])
  values ('111', 'nemo', 1, 100, 1000);
1 rows affected

select *
from [PRICE]


ISIN
Nemo
Month(t)
Month(t-1)
Month(t-2)


111
nemo
1
100
1000