Have you tried this: city =
DB[table_name].where(field_name.downcase.to_sym => 'NEW YORK')

On Apr 11, 9:06 pm, kdf <[email protected]> wrote:
> Hi,
>
> Is it possible to convert a variable to use as a fieldname in a select
> clause ?
>
> I'm parsing Oracle's data dictionary and would like to select from any
> table with a field matching a certain field name
>
> i.e. field names can be FROM_CITY, CITY, TO_CITY, etc.
>
> query_tables = DB[:dba_tab_columns].where({:column_name.like('%CITY
> %')} & {:owner => 'ME'})
>
> for table in query_tables
>         table_name = table[:table_name]
>         field_name = table[:column_name]
>         city = DB[table_name].where(field_name => 'NEW YORK')
>         puts "#{table_name} - #{city.count}"
> end
>
> I need to convert field_name to a valid field reference.
>
> Thoughts ?
>
> Kim

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