How to use SIZE as column name

I have a database that I am trying to move from MSAccess to ORACLE. There is a column in one of the tables called 'SIZE'. I have moved the table into ORACLE, but I cannot insert or update any rows of the SIZE column is involved. There is a lot of legacy here and I do not want to rename the column. In MS Access I was able to say [SIZE]='44' But that does not seem to work in ORACLE.
Is there a similar syntax in ORACLE? I have tried (SIZE), 'SIZE', tablename.SIZE, "SIZE" nothing seems to work.
Please help.
Thanks in advance.

As long as you surround the column name with double quotes and specify the case for the column name correctly, you should have no error.
SQL> create table sizes ("SIZE" number, "Size" number, "size" number) ;
Table créée.
SQL> insert into sizes ("SIZE", "Size", "size") values (1, 2, 3) ;
1 ligne créée.
SQL> select * from sizes ;
     SIZE      Size      size
        1         2         3
SQL> update sizes set "size" = 4 where "SIZE" = 1 ;
1 ligne mise à jour.
SQL> select * from sizes ;
     SIZE      Size      size
        1         2         4

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