Can you generate SQL by using SQL in Postgres?

Generating SQL from another SQL statement simply means writing an SQL
statement whose output forms another SQL statement or command.

1) Can you generate SQL by using SQL in Postgres? This question is
essential to DBAs because they can generate lots of DLL on the fly from
one single SQL statement and it'll make life much easier and more
efficient. I use it with Oracle and was wondering if it's doable in
Postgres and maybe an example would be even better.

2) the other question is related to passing logon password along with
the user ID or connect string (instead of interactively typing the
password). For instance, psql -d myDB -U husam - Can I pass the
password here. Or inside psq using connect l : \c myDB .....

Thanks,

--
Husam

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Thank you. FADLD Tag
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