alias - SQL-Duplicate column names -


i using sql developer , trying outer join on 2 tables. error showing "duplicate column names". have used table nameswhile comparison still giving error. code following:

create view oecd_view select * dm_oecd_gdp full outer join dm_oecd_doctors  on dm_oecd_gdp.data_year = dm_oecd_doctors.data_year;

i have heard error can resolved aliasing don't know how alias while comparing. can done?

thanks

you have explicitly name returned fields both tables , alias fields having same name, like:

create view oecd_view select dm_oecd_gdp.data_year gdp_data_year,        dm_oecd_doctors.data_year doc_data_year,        ... rest of fields here dm_oecd_gdp  full outer join dm_oecd_doctors  on dm_oecd_gdp.data_year = dm_oecd_doctors.data_year;

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