Series of 10 questions about the use of postgresql, generally.

I have been going through the free online book LEARNING postgresql book, that has been compiled by Stack Overflow contributors. I have gotten to the point where I have the following series of unanswered questions:

2. If I am using the COPY command for input and output around *.csv files, how may I specify internal tuple delimiters of ',', but at the same time also specify an end of line delimeter of ';' ?

3. How may I get postgresql to output the create table statement(s) for one or more tables of one database?

4. I know that I can use COPY to import or export one database table between it and a *.csv file. Can I use it to do this with multiple TABLES and *.csv files specified in one COPY COMMAND, or not? How may I use COPY, or another default native postgresql function, to export or import create table commands to and from a *.csv file?

5. In the absence of OS command line instructions, is there an internal postgresql way, via COPY or another function for example, to backup an entire database, with all its create table statements and all insert statements, and any other associated object, in one hit? Or is this ill advised?

6. -How exactly do Intervals work, via themselves and in relation to the other provided native datatypes? What are Intervals used for?

7. When setting up communication to remote databases on remote machines, I need to use the OPTIONS() function. It seems to require as its first function parameter, the schema of the table (the second parameter) that it wants to access. Can I supply a null schema, and still be able to reference the remote table, or must I also make use of IMPORT FOREIGN SCHEMA?

8. When I am using INHERITS to setup inheritance between two tables, will this mean that all data inserted into the Parent table is automatically updated into the Child table(s), or not?

9. What does the VARYING keyword do to an applicable type in a create table statement? CHARACTER VARYING becomes entirely equivalent to VARCHAR. Static, limited types become more dynamic and are unlimited.