Обсуждение: ?more?

When I do a large select , the results all zip past the screen
. How do I make it go page by page ? I figure this has to do
with a term setting, my default term setting is 'linux' .
I tried vt100 and vt220 .

Perhaps this is a linux-ism ?

Thanks
   Jeff

Do a '\g | more' instead of the ';' at the end of the query.  Much easier:

select * from table \g | more




--------------------------------------------------------------------------
Aaron Holtz
ComNet Inc.
UNIX Systems Specialist
Email:  aholtz@bright.net
"It's not broken, it just lacks duct tape."
--------------------------------------------------------------------------


On Jun 22, Jeff MacDonald molded the electrons to say....

>When I do a large select , the results all zip past the screen
>. How do I make it go page by page ? I figure this has to do
>with a term setting, my default term setting is 'linux' .
>I tried vt100 and vt220 .
>
>Perhaps this is a linux-ism ?
>
>Thanks
>   Jeff
>
>
>

Jeff MacDonald wrote:
>
> When I do a large select , the results all zip past the screen
> . How do I make it go page by page ? I figure this has to do
> with a term setting, my default term setting is 'linux' .
> I tried vt100 and vt220 .
>
> Perhaps this is a linux-ism ?
>
> Thanks
>    Jeff

look into using cursors.  that way you can fetch a few records at a time
from a select.
also make sure to put it in a begin - end transaction block.  i think
you can get help on declare in psql, which should tell you what you need
to know. an example of doing this would be something like:

begin;
declare cursor_name cursor for select * from test_table;
fetch 20 in cursor_name;
end;

> Do a '\g | more' instead of the ';' at the end of the query.  Much easier:
>
> select * from table \g | more
>
>

Define PAGER, and it is automatically invoked if the data is more than
the size of the screen.

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At 17:41 +0300 on 22/06/1999, Jeff MacDonald wrote:


> When I do a large select , the results all zip past the screen
> . How do I make it go page by page ? I figure this has to do
> with a term setting, my default term setting is 'linux' .
> I tried vt100 and vt220 .
>
> Perhaps this is a linux-ism ?

You have to set the environment variable PAGER. Usually, to "more", or
better yet, to "less".

This environment variable shoud be set by the individual user, not on the
server process or anything. Once set, it also affects other unix utilities,
such as man(1).

Herouth

--
Herouth Maoz, Internet developer.
Open University of Israel - Telem project
http://telem.openu.ac.il/~herutma