Let's say I have a table:
I'd like to find out how many times a unique 'subject_name' is in the
table. My SQL book says that I should be able to do this:
select COUNT(DISTINCT subject_name) from table1;
However, the psql program is giving me an "ERROR: parser: parse error
at or near "distinct"".
Is there another way to do this (or a problem with my query)?
Using [PostgreSQL 6.5.1 on i686-pc-linux-gnu, compiled by gcc
pgsql-sql by date
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