Re: Select Multi Database / Need More;

On Fri, 2002-11-29 at 19:08, yudha wrote:
> Then how could i make it (SCHEMA)..??
> There are many tables split on 4 databases on my previous
> databases (MS-SQL Server). Could you give me more
> explanations about PostgreSQL-Schema. I've tried to search
> about schema on many url but i still don't clearly understand
> about "schema", there's no Create Schema command or
> some command that's following with option schema.

You need PostgreSQL 7.3, released yesterday.

junk=# \h create schema
Command: CREATE SCHEMA
Description: define a new schema
Syntax:
CREATE SCHEMA schemaname [ AUTHORIZATION username ] [ schema_element [ ... ] ]
CREATE SCHEMA AUTHORIZATION username [ schema_element [ ... ] ]

For example:

CREATE SCHEMA newjunk
CREATE TABLE fred (id SERIAL PRIMARY KEY, fname TEXT)
CREATE TABLE george (id SERIAL PRIMARY KEY, gname TEXT
);

--
Oliver Elphick <olly(at)lfix(dot)co(dot)uk>
LFIX Limited

Thank's for Milist's advices,

Dear Oliver Elphick <olly(at)lfix(dot)co(dot)uk>, You Wrote ;
>You cannot read from another database. In 7.3, you can have multiple
>schemas in one database and the syntax for reading a file from another
>schema is:

> SELECT * FROM schema.table...
-------------------------------------------------------------------------
Dear Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, You Wrote;
>You can't do cross-db queries directly. In 7.3, you can use schemas and
>put them all in the same database, or use /contrib/dblink for cross-db
>queries.
-------------------------------------------------------------------------

Then how could i make it (SCHEMA)..??
There are many tables split on 4 databases on my previous
databases (MS-SQL Server). Could you give me more
explanations about PostgreSQL-Schema. I've tried to search
about schema on many url but i still don't clearly understand
about "schema", there's no Create Schema command or
some command that's following with option schema. In the middle of
my confusing i tried to using command "create schema my_schema;"
it wasn't error show up, but my_schema that's i created is the same
with other database and it could dropped using "drop database my_schema".
So do you have any idea how to make a schema on PostgreSQL..??? and
anybody have any examples that's using "contrib/dblink"...???.
Sorry for very-basicly question.
Some Advices will be helpfull.
TIA and GOD Bless You.