i have a composite attribute, person_name, under table 1. person_name has first_name, last_name, middle_initial...etc.
how do i write a query to pull out just those names by first name? when i try to say:
select first_name from table 1;
it tells me that first_name is an invalid column name...
i know this might seem like a simple question, but's it's been a little while since i used sql.
i am trying to combine three different tables
example:
table 1
(primary key) user history
(primary key) project id
table 2
(primary key) project id
project name
table 3
(primary key)...
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