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Report the code of every country where at least two different languages are spoken. Rename the column to bilingualcode. We use the keyword as
Report the code of every country where at least two different languages are spoken. Rename the column to "bilingualcode". We use the keyword as to rename a column. For example:
select code as a name as b
from country;
We encourage you to use a selfjoin to do this question, but in order to do this you'll need to rename a table. The tablerenaming syntax is simply to include a new table name after the old one. For example this one is not a selfjoin:
select
from country c language l
where ccode lcountrycode;
Note that the FROM clause above might look like a Cartesian product of four tables; pay attention to commas!
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