Variables.

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От Aasmund Midttun Godal
Тема Variables.
Дата
Msg-id 20011017010054.28016.qmail@ns.krot.org
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Ответы Re: Variables.
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I would really like a feature :)

I do not know whether it is  part of the SQL standard.

Variables...

e.g.

CREATE VARIABLE foobar INTEGER DEFAULT 1 NOT NULL;

SELECT * FROM thebar WHERE id = foobar;

CREATE TEMPORARY VARIABLE...
CREATE CONSTANT....

Basically all the functionality from the table columns (CHECK and REFERENCES...) and it must take any type, so that you
canuse user-created types as well.
 

SET foobar 3;

it could adopt properties from both runtime info and sequences...

My abilities in C, as in many other things is severely limited so I am asking someone else to do the dirtywork :). And
Ido appreciate that this may take some time.
 

It would be nice to have some sort of GRANT revoke SCHEME on it too...

I do acknowledge that this can be achieved with temporary and non temporary tables, but it can get ugly with these.

While I am at it I would highly suggest that there is some sort of SESSION_ID environment variable.

Some of the uses:

* Store things like personal  preferences
* Parameters from a webserver
* Client application name
* etc.






Aasmund Midttun Godal

aasmund@godal.com - http://www.godal.com/
+47 40 45 20 46


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