user defined variable per session

On Sunday, December 7, 2003, at 11:38 PM, Miso Hlavac wrote:

Hello,

I need to create user defined variable in every database session.
In Sybase ASA is equivalent:
CREATE VARIABLE name TYPE;

I need use this in views. Is it possible???

Would it be possible to use a temp (very simple) temp table to do this?
For example

CREATE TEMP TABLE variable (value INT);

for an integer variable. Then just use UPDATE and SELECT to set and
return the variable.

Michael
grzm myrealbox com

I need to create user defined variable in every database session.
In Sybase ASA is equivalent:
CREATE VARIABLE name TYPE;

I need use this in views. Is it possible???

What about

test=> \set myvar 5
test=> select :myvar;
?column?
----------
5
(1 row)

hth
cl.

On Sun, 2003-12-07 at 19:57, Claudio Lapidus wrote:

I need to create user defined variable in every database session.
In Sybase ASA is equivalent:
CREATE VARIABLE name TYPE;

I need use this in views. Is it possible???

What about

test=> \set myvar 5
test=> select :myvar;
?column?
----------
5
(1 row)

But that is specific to psql. It's not something you can use in an
application, as you might the Sybase command.

--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight, UK http://www.lfix.co.uk/oliver
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