Sophie: postgresql8.3-docs-8.3.6-2mdv2008.1 x86

postgresql8.3-docs-8.3.6-2mdv2008.1.x86_64.rpm

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>dblink_connect</H1
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><H2
>Name</H2
>dblink_connect&nbsp;--&nbsp;opens a persistent connection to a remote database</DIV
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><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>    dblink_connect(text connstr) returns text
    dblink_connect(text connname, text connstr) returns text
   </PRE
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><H2
>Description</H2
><P
>    <CODE
CLASS="FUNCTION"
>dblink_connect()</CODE
> establishes a connection to a remote
    <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> database.  The server and database to
    be contacted are identified through a standard <SPAN
CLASS="APPLICATION"
>libpq</SPAN
>
    connection string.  Optionally, a name can be assigned to the
    connection.  Multiple named connections can be open at once, but
    only one unnamed connection is permitted at a time.  The connection
    will persist until closed or until the database session is ended.
   </P
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><H2
>Arguments</H2
><P
></P
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><DL
><DT
><TT
CLASS="PARAMETER"
>conname</TT
></DT
><DD
><P
>       The name to use for this connection; if omitted, an unnamed
       connection is opened, replacing any existing unnamed connection.
      </P
></DD
><DT
><TT
CLASS="PARAMETER"
>connstr</TT
></DT
><DD
><P
>       <SPAN
CLASS="APPLICATION"
>libpq</SPAN
>-style connection info string, for example
       <TT
CLASS="LITERAL"
>hostaddr=127.0.0.1 port=5432 dbname=mydb user=postgres
       password=mypasswd</TT
>.
       For details see <CODE
CLASS="FUNCTION"
>PQconnectdb</CODE
> in
       <A
HREF="libpq-connect.html"
>Section 30.1</A
>.
      </P
></DD
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><H2
>Return Value</H2
><P
>    Returns status, which is always <TT
CLASS="LITERAL"
>OK</TT
> (since any error
    causes the function to throw an error instead of returning).
   </P
></DIV
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><A
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></A
><H2
>Notes</H2
><P
>    Only superusers may use <CODE
CLASS="FUNCTION"
>dblink_connect</CODE
> to create
    non-password-authenticated connections.  If non-superusers need this
    capability, use <CODE
CLASS="FUNCTION"
>dblink_connect_u</CODE
> instead.
   </P
><P
>    It is unwise to choose connection names that contain equal signs,
    as this opens a risk of confusion with connection info strings
    in other <TT
CLASS="FILENAME"
>dblink</TT
> functions.
   </P
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><H2
>Example</H2
><PRE
CLASS="PROGRAMLISTING"
> select dblink_connect('dbname=postgres');
  dblink_connect
 ----------------
  OK
 (1 row)

 select dblink_connect('myconn', 'dbname=postgres');
  dblink_connect
 ----------------
  OK
 (1 row)
   </PRE
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